diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0cff5604add6f8058e9a2d2398ea0540b0142e0d..b3333652b9f5e2f245a29dcaf37c199c5d783bdb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -30,7 +30,7 @@ stages:
 #  Windows
 #-------------------------------------------------------------------------------
 
-# casual builds
+# common builds
 
 conan:windows:msvc++14.1:
   stage: conan
@@ -188,7 +188,184 @@ test:windows_nightly:msvc++14.1:
 #  Linux
 #-------------------------------------------------------------------------------
 
-# casual builds
+# clang
+
+# common build
+
+conan:linux:clang:
+  stage: conan
+  except:
+    - schedules
+  tags:
+    - CentOS
+    - opengl
+    - clang
+  script:
+    - mkdir build
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - conan install .. --build=missing -s compiler="clang" -s compiler.version="4.0" -s compiler.libcxx="libstdc++11" -s build_type=Release
+  artifacts:
+    paths:
+      - build
+    expire_in: 1 week      
+
+cmake:linux:clang:
+  stage: cmake
+  except:
+    - schedules
+  tags:
+    - CentOS
+    - opengl
+    - clang
+  dependencies:
+    - conan:linux:clang
+  script:
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - cmake .. -DIS_BUILD_SERVER:BOOL=TRUE -DCMAKE_BUILD_TYPE=Release     
+  artifacts:
+    untracked: true
+    paths:
+      - build
+    expire_in: 1 week    
+    
+build:linux:clang:
+  stage: build
+  except:
+    - schedules
+  tags:
+    - CentOS
+    - opengl
+    - clang
+  dependencies:
+    - cmake:linux:clang
+  script:
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - make Cpplint-Test-Suite
+    - make Cppcheck-Test-Suite
+    - make -j8
+  artifacts:
+    paths:
+    - build
+    expire_in: 1 week
+  allow_failure: true 
+
+test:linux:clang:
+  stage: test
+  except:
+    - schedules
+  tags:
+    - CentOS
+    - opengl
+    - clang
+  dependencies:
+    - build:linux:clang
+  script:
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - make Unit-Test-Suite  
+
+# nightly build
+
+clear:linux_nightly:clang:
+  stage: clear
+  only:
+    - schedules
+  tags:
+    - nightly
+    - clang
+  script:
+    - echo $CONAN_USER_HOME
+    - cd /home/gitlab-runner/dev
+    - rm -rf ./conan_nightly_clang
+    - mkdir conan_nightly_clang
+
+conan:linux_nightly:clang:
+  stage: conan
+  only:
+    - schedules
+  tags:
+    - nightly
+    - clang
+  script:
+    - conan remote add rwth-vr--bintray https://api.bintray.com/conan/rwth-vr/conan
+    - conan remote add bincrafters_public https://api.bintray.com/conan/bincrafters/public-conan
+    - mkdir build
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - conan install .. --build=missing -s compiler="clang" -s compiler.version="4.0" -s compiler.libcxx="libstdc++11" -s build_type=Release
+  artifacts:
+    paths:
+      - build
+    expire_in: 1 week      
+
+cmake:linux_nightly:clang:
+  stage: cmake
+  only:
+    - schedules
+  tags:
+    - nightly
+    - clang
+  dependencies:
+    - conan:linux_nightly:clang
+  script:
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - cmake .. -DIS_BUILD_SERVER:BOOL=TRUE -DCMAKE_BUILD_TYPE=Release     
+  artifacts:
+    untracked: true
+    paths:
+      - build
+    expire_in: 1 week    
+    
+build:linux_nightly:clang:
+  stage: build
+  only:
+    - schedules
+  tags:
+    - nightly
+    - clang
+  dependencies:
+    - cmake:linux_nightly:clang
+  script:
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - make Cpplint-Test-Suite
+    - make Cppcheck-Test-Suite
+    - make -j8
+  artifacts:
+    paths:
+    - build
+    expire_in: 1 week
+  allow_failure: true 
+
+test:linux_nightly:clang:
+  stage: test
+  only:
+    - schedules
+  tags:
+    - nightly
+    - clang
+  dependencies:
+    - build:linux_nightly:clang
+  script:
+    - cd build
+    - export CC=clang
+    - export CXX=clang++
+    - make Unit-Test-Suite
+    
+# gcc
+
+# common builds
 
 conan:linux:gcc5.3.1:
   stage: conan
diff --git a/cmake/Testing.cmake b/cmake/Testing.cmake
index 36cf0f171ae76dfa442e590a7ef9c2c4beb462b2..47ea597015eee6a1577dfdde1cb4cff0c98e69d3 100644
--- a/cmake/Testing.cmake
+++ b/cmake/Testing.cmake
@@ -28,12 +28,122 @@ include(WarningLevels)
 conan_or_find_package(catch REQUIRED)
 conan_or_find_package(trompeloeil REQUIRED)
 
+define_property(TARGET
+  PROPERTY testing__removes_libraries
+  BRIEF_DOCS "Libraries to be removed for mocking"
+  FULL_DOCS "Libraries to be removed for mocking")
+define_property(TARGET
+  PROPERTY testing__adds_libraries
+  BRIEF_DOCS "Libraries to be added for mocking"
+  FULL_DOCS "Libraries to be added for mocking")
+
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+set_property(GLOBAL PROPERTY TESTING__AVAILABLE_TESTS "")
+
+set(IS_BUILD_SERVER
+  FALSE CACHE BOOL
+  "Is this the build server? So we, e.g., simulate user input for tests requiring it."
+  )
+
 
-set_property(GLOBAL PROPERTY ADDED_TESTS "")
+function(CREATE_TEST_MAIN)
+  testing__add_library_(NAME test_main ${ARGV})
+endfunction()
+
+
+function(CREATE_MOCK_MAIN)
+  testing__add_library_(NAME mock_main ${ARGV})
+endfunction()
+
+
+function(TESTING__ADD_LIBRARY_)
+  set(options)
+  set(oneValueArgs NAME)
+  set(multiValueArgs SOURCES HEADERS INCLUDE_DIRECTORIES LIBRARIES )
+  cmake_parse_arguments(TESTING__ADD_LIBRARY_
+    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+  add_library(${TESTING__ADD_LIBRARY__NAME}
+    ${TESTING__ADD_LIBRARY__SOURCES}
+    ${TESTING__ADD_LIBRARY__HEADERS}
+    )
+  target_include_directories(${TESTING__ADD_LIBRARY__NAME}
+    PUBLIC ${TESTING__ADD_LIBRARY__INCLUDE_DIRECTORIES}
+    )
+  target_link_libraries(${TESTING__ADD_LIBRARY__NAME}
+    ${TESTING__ADD_LIBRARY__LIBRARIES}
+    )
+  set_property(TARGET ${TESTING__ADD_LIBRARY__NAME} PROPERTY POSITION_INDEPENDENT_CODE ON)
+endfunction()
+
+
+function(ADD_TESTS)
+  set(options )
+  set(oneValueArgs NAME)
+  set(multiValueArgs
+    SOURCES HEADERS INCLUDE_DIRECTORIES LIBRARIES PATH_TO_ADD)
+  cmake_parse_arguments(ADD_TESTS_
+    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+  foreach(TEST_SOURCE_FILE ${ADD_TESTS__SOURCES})
+    add_single_test(
+      NAME ${TEST_NAME}
+      SOURCE ${TEST_SOURCE_FILE}
+      INCLUDE_DIRECTORIES ${ADD_TESTS__INCLUDE_DIRECTORIES}
+      LIBRARIES ${ADD_TESTS__LIBRARIES}
+      PATH_TO_ADD ${ADD_TESTS__PATH_TO_ADD}
+      )
+  endforeach()
+endfunction()
+
+
+function(ADD_SINGLE_TEST)
+  set(options )
+  set(oneValueArgs)
+  set(multiValueArgs SOURCE INCLUDE_DIRECTORIES LIBRARIES PATH_TO_ADD)
+  cmake_parse_arguments(ADD_SINGLE_TEST_
+    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
 
+  get_filename_component(
+    TEST_NAME
+    ${ADD_SINGLE_TEST__SOURCE} NAME_WE)
 
-function(CONFIGURE_MSVC_USERFILE TARGET_NAME PATH_TO_ADD)
+  add_executable(${TEST_NAME}
+    ${ADD_SINGLE_TEST__SOURCE}
+    )
+  target_include_directories(${TEST_NAME}
+    PRIVATE ${ADD_SINGLE_TEST__INCLUDE_DIRECTORIES}
+    )
+  target_link_libraries(${TEST_NAME}
+    ${ADD_SINGLE_TEST__LIBRARIES}
+    ${CONAN_OR_CMAKE_catch}
+    test_main mock_main
+    )
+  set_warning_levels_RWTH(${TEST_NAME})
+  if(IS_BUILD_SERVER)
+    target_compile_definitions(${TEST_NAME} PUBLIC -DIS_BUILD_SERVER)
+  endif()
+  set_property(TARGET ${TEST_NAME}
+    PROPERTY FOLDER "Tests")
+  source_group("Source Files"
+    FILES ${ADD_SINGLE_TEST__SOURCE})
+
+  if(ADD_SINGLE_TEST__PATH_TO_ADD AND WIN32 AND MSVC)
+    CONFIGURE_MSVC_USERFILE_(${TEST_NAME}
+      ${ADD_SINGLE_TEST__PATH_TO_ADD})
+  endif()
+  
+  add_test(NAME ${TEST_NAME}
+    COMMAND ${TEST_NAME}
+    )
+  testing__set_timeout_(${TEST_NAME})
+
+  set_property(GLOBAL APPEND PROPERTY
+    TESTING__AVAILABLE_TESTS "${TEST_NAME}")  
+endfunction()
+
+
+function(CONFIGURE_MSVC_USERFILE_ TARGET_NAME PATH_TO_ADD)
   file(TO_NATIVE_PATH "${PATH_TO_ADD}/Release" _DLL_PATH_RELEASE)
   file(TO_NATIVE_PATH "${PATH_TO_ADD}/Debug" _DLL_PATH_DEBUG)
   set(SOURCE_USER_FILE
@@ -43,132 +153,157 @@ function(CONFIGURE_MSVC_USERFILE TARGET_NAME PATH_TO_ADD)
   configure_file(${SOURCE_USER_FILE} ${DESTINATION_USER_FILE} @ONLY)
 endfunction()
 
-function(ADD_TEST_TARGET_INTERNAL_
-    NAME SOURCES HEADERS INCLUDE_DIRECTORIES LINK_LIBRARIES PATH_TO_ADD)
-  add_executable(${NAME} ${SOURCES} ${HEADERS})
-  target_include_directories(${NAME} PRIVATE ${INCLUDE_DIRECTORIES})
-  target_link_libraries(${NAME} ${LINK_LIBRARIES})
-  target_link_libraries(${NAME} ${CONAN_OR_CMAKE_catch})
-   
-  if(WIN32 AND MSVC)
-    CONFIGURE_MSVC_USERFILE(${NAME} ${PATH_TO_ADD})
-  endif()
-endfunction()
 
-function(ADD_TEST_CATCH_INTERNAL_ 
-    NAME SOURCES HEADERS)
-  
-  add_test(NAME ${NAME} COMMAND ${NAME})
-  if(NOT ${NAME} MATCHES "integration")
-    set_tests_properties(${NAME} PROPERTIES TIMEOUT 10.0)
+function(TESTING__SET_TIMEOUT_ TARGET)
+  if(NOT ${TARGET} MATCHES "integration")
+    set_tests_properties(${TARGET} PROPERTIES TIMEOUT 10.0)
   else()
-    set_tests_properties(${NAME} PROPERTIES TIMEOUT 120.0)
+    set_tests_properties(${TARGET} PROPERTIES TIMEOUT 120.0)
   endif()
-  set_warning_levels_RWTH(${NAME})
+endfunction()
 
-  set_property(TARGET ${NAME} PROPERTY FOLDER "Tests")
-  source_group("Source Files" FILES ${SOURCES} ${HEADERS})
-  
-  set_property(GLOBAL APPEND PROPERTY ADDED_TESTS "${NAME}")
-  
-  if(IS_BUILD_SERVER)
-    target_compile_definitions(${NAME} PUBLIC -DIS_BUILD_SERVER)
-  endif()
+
+function(ADD_MOCK)
+  set(options )
+  set(oneValueArgs NAME)
+  set(multiValueArgs
+    SOURCES
+    HEADERS
+    INCLUDE_DIRECTORIES
+    INCLUDE_DIRECTORIES_OF
+    COMPILE_OPTIONS
+    REMOVES_LIBRARIES
+    ADDS_LIBRARIES
+  )
+  cmake_parse_arguments(ADD_MOCK_
+    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+  string(TOUPPER ${ADD_MOCK__NAME} ADD_MOCK__NAME_UPPER)
+  string(TOLOWER ${ADD_MOCK__NAME} ADD_MOCK__NAME_LOWER)
   
-endfunction()
+  add_library(${ADD_MOCK__NAME} SHARED
+    ${ADD_MOCK__SOURCES}
+    ${ADD_MOCK__HEADERS}
+    )
+  target_link_libraries(${ADD_MOCK__NAME}
+    ${CONAN_OR_CMAKE_trompeloeil}
+    mock_main test_main
+    )
+  foreach(CURRENT_TARGET ${ADD_MOCK__INCLUDE_DIRECTORIES_OF})
+    get_target_property(CURRENT_INCLUCE_DIRECTORIES
+      ${CURRENT_TARGET} INTERFACE_INCLUDE_DIRECTORIES)
+    if (CURRENT_INCLUCE_DIRECTORIES)
+      target_include_directories(${ADD_MOCK__NAME}
+	    PUBLIC ${CURRENT_INCLUCE_DIRECTORIES}
+	  )
+    endif()
+  endforeach()
+  target_include_directories(${ADD_MOCK__NAME}
+    PUBLIC ${ADD_MOCK__INCLUDE_DIRECTORIES}
+    )
+  target_compile_definitions(${ADD_MOCK__NAME}
+    PRIVATE ${ADD_MOCK__NAME_UPPER}_BUILD
+    )
+  target_compile_options(${ADD_MOCK__NAME}
+    PUBLIC ${ADD_MOCK__COMPILE_OPTIONS}
+    )
 
-function(ADD_TEST_INTERNAL_ 
-    NAME SOURCES HEADERS INCLUDE_DIRECTORIES LINK_LIBRARIES PATH_TO_ADD)
-  ADD_TEST_TARGET_INTERNAL_("${NAME}" "${SOURCES}" "${HEADERS}" "${INCLUDE_DIRECTORIES}" "${LINK_LIBRARIES}" "${PATH_TO_ADD}")
-  ADD_TEST_CATCH_INTERNAL_("${NAME}" "${SOURCES}" "${HEADERS}")
-endfunction()
+  set_property(TARGET ${ADD_MOCK__NAME} PROPERTY FOLDER "Tests/Mocks")
 
+  set_target_properties(${ADD_MOCK__NAME}
+    PROPERTIES testing__removes_libraries "${ADD_MOCK__REMOVES_LIBRARIES}")
+  set_target_properties(${ADD_MOCK__NAME}
+    PROPERTIES testing__adds_libraries "${ADD_MOCK__ADDS_LIBRARIES}")
 
+  generate_export_header(${ADD_MOCK__NAME}
+    EXPORT_FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/mocks/${ADD_MOCK__NAME_LOWER}_export.hpp
+    )
+  set_warning_levels_rwth(${ADD_MOCK__NAME})
+endfunction()
 
 
-function(CREATE_CATCH_MAIN_INTERNAL_
-    NAME SOURCE INCLUDE_DIRECTORIES)
-  add_library(${NAME} ${SOURCE})
-  target_include_directories(${NAME} PRIVATE ${INCLUDE_DIRECTORIES})
-  target_link_libraries(${NAME} ${CONAN_OR_CMAKE_catch} ${CONAN_OR_CMAKE_trompeloeil})
-  set_property(TARGET ${NAME} PROPERTY FOLDER "Tests")
-  source_group("Source Files" FILES ${SOURCE})
+function(AUTOREMOVE_MOCKED_TEST_SOURCE_FROM)
+  set_property(GLOBAL PROPERTY TESTING__SOURCES__AUTOREMOVE_MOCKED ${ARGN})
 endfunction()
 
+function(GET_UNMOCKED_TEST_SOURCES test_list)
+  get_property(TEST_SOURCES_LIST
+    GLOBAL PROPERTY TESTING__SOURCES__AUTOREMOVE_MOCKED) 
+  set(${test_list} ${TEST_SOURCES_LIST} PARENT_SCOPE)
+endfunction()
 
-function(ADD_TEST_CATCH)
-  # parse arguments
+function(add_mocked_test cpp_file)
   set(options )
-  set(oneValueArgs NAME CATCH_MAIN)
-  set(multiValueArgs
-    SOURCES HEADERS INCLUDE_DIRECTORIES LINK_LIBRARIES PATH_TO_ADD)
-  cmake_parse_arguments(ADD_TEST_CATCH
+  set(oneValueArgs )
+  set(multiValueArgs LIBRARIES MOCKING_LIBRARIES_OF MOCKS)
+  cmake_parse_arguments(ADD_MOCKED_TEST
     "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
 
-  create_catch_main_internal_("${ADD_TEST_CATCH_NAME}_catch_main"
-    ${ADD_TEST_CATCH_CATCH_MAIN}
-    ${ADD_TEST_CATCH_INCLUDE_DIRECTORIES}
-  )
-
-  # remove catch_main file from sources
-  file(GLOB ADD_TEST_CATCH_CATCH_MAIN_ABSOLUTE ${ADD_TEST_CATCH_CATCH_MAIN})
-  list(REMOVE_ITEM ADD_TEST_CATCH_SOURCES ${ADD_TEST_CATCH_CATCH_MAIN_ABSOLUTE})
-
-  # add test for each test source file
-  foreach(TEST_SOURCE_FILE ${ADD_TEST_CATCH_SOURCES})
-    get_filename_component(TEST_NAME ${TEST_SOURCE_FILE} NAME_WE)
-    ADD_TEST_INTERNAL_("${TEST_NAME}"
-      "${TEST_SOURCE_FILE}"
-      ""
-      "${ADD_TEST_CATCH_INCLUDE_DIRECTORIES}"
-      "${ADD_TEST_CATCH_LINK_LIBRARIES};${ADD_TEST_CATCH_NAME}_catch_main"
-      "${ADD_TEST_CATCH_PATH_TO_ADD}"
+ 
+  get_property(TEST_SOURCES_LIST
+    GLOBAL PROPERTY TESTING__SOURCES__AUTOREMOVE_MOCKED) 
+  list(REMOVE_ITEM TEST_SOURCES_LIST
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/${cpp_file}.cpp)
+  set_property(GLOBAL PROPERTY TESTING__SOURCES__AUTOREMOVE_MOCKED ${TEST_SOURCES_LIST})
+  
+  set(test_sources src/${cpp_file}.cpp)
+  add_single_test(
+    SOURCE ${test_sources}
     )
-  endforeach()
-endfunction()
+  add_dependencies(${cpp_file} ${ADD_MOCKED_TEST_LIBRARIES})
+
+  set(LINK_LIBRARIES )
+  foreach(CURR_TARGET ${ADD_MOCKED_TEST_LIBRARIES})
+    get_target_property(CURR_LINK_LIBRARIES ${CURR_TARGET} LINK_LIBRARIES)
+    list(APPEND LINK_LIBRARIES ${CURR_LINK_LIBRARIES})
 
-macro(EXTRACT_UNIT_AND_INTEGRATION_TEST_TARGETS)
-  get_property(added_tests GLOBAL PROPERTY ADDED_TESTS)
-  foreach(filename ${added_tests})
-  	if(${filename} MATCHES "integration_test")
-  	  message(STATUS "Integration Test: ${filename}")
-  	  set(INTEGRATION_TEST_TARGETS ${INTEGRATION_TEST_TARGETS} ${filename})
-  	else()
-  	  message(STATUS "Unit Test: ${filename}")
-  	  set(UNIT_TEST_TARGETS ${UNIT_TEST_TARGETS} ${filename})
-  	endif()
+    target_link_libraries(${cpp_file} $<TARGET_FILE:${CURR_TARGET}>)
+	
+	get_target_property(CURR_INCLUDE_DIRECTORIES
+      ${CURR_TARGET} INCLUDE_DIRECTORIES)
+    target_include_directories(${cpp_file} PRIVATE ${CURR_INCLUDE_DIRECTORIES})
+  endforeach()
+  list(REMOVE_DUPLICATES LINK_LIBRARIES)
+  #the libraries themselves must not be in LINK_LIBRARIES
+  foreach(CURR_TARGET ${ADD_MOCKED_TEST_LIBRARIES})
+    list(REMOVE_ITEM LINK_LIBRARIES ${CURR_TARGET})
   endforeach()
-endmacro()
 
-macro(ADD_TEST_SUITE)
-  set(options)
-  set(oneValueArgs NAME TEST_REGEX)
-  set(multiValueArgs DEPEND_ON_TARGETS)
-  cmake_parse_arguments(ADD_TEST_SUITE
-    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
-  #we have to escape the " for visual studio)
-  add_custom_target(${ADD_TEST_SUITE_NAME} COMMAND ctest --tests-regex \"${ADD_TEST_SUITE_TEST_REGEX}\" -C $<CONFIG>)
-   # This comment just ends the escaped signs, for VS highlighting "
-  if(ADD_TEST_SUITE_DEPEND_ON_TARGETS)
-    add_dependencies(${ADD_TEST_SUITE_NAME} ${ADD_TEST_SUITE_DEPEND_ON_TARGETS})
-  endif()
-  set_property(TARGET ${ADD_TEST_SUITE_NAME} PROPERTY FOLDER "_Test-Suites_")
-endmacro()
+  foreach(MOCK ${ADD_MOCKED_TEST_MOCKS})
+    get_target_property(LIBRARIES_TO_BE_REMOVED ${MOCK} testing__removes_libraries)
+    foreach(LIBRARY_TO_BE_REMOVED ${LIBRARIES_TO_BE_REMOVED})
+      list(REMOVE_ITEM LINK_LIBRARIES ${LIBRARY_TO_BE_REMOVED})
+    endforeach()
+    
+    get_target_property(LIBRARIES_TO_BE_ADDED ${MOCK} testing__adds_libraries)
+    foreach(LIBRARY_TO_BE_ADDED ${LIBRARIES_TO_BE_ADDED})
+      list(APPEND LINK_LIBRARIES ${LIBRARY_TO_BE_ADDED})
+    endforeach()
 
+    target_link_libraries(${cpp_file} ${MOCK})
+  endforeach()
+  
+  target_link_libraries(${cpp_file}
+    ${CONAN_OR_CMAKE_trompeloeil}
+    ${CONAN_OR_CMAKE_catch}
+    ${LINK_LIBRARIES}
+  )
+endfunction()
+#-------------------------------------------------------------------------------
 
 
 function(CREATE_TEST_SUITES)
-	EXTRACT_UNIT_AND_INTEGRATION_TEST_TARGETS()
+	testing__extract_unit_and_integration_test_targets_()
 
 	ADD_TEST_SUITE(
 	  NAME "Unit-Test-Suite"
 	  TEST_REGEX "^test"
-	  DEPEND_ON_TARGETS ${UNIT_TEST_TARGETS})
+	  DEPEND_ON_TARGETS ${TESTING__UNIT_TESTS})
 
 	ADD_TEST_SUITE(
 	  NAME "Integration-Test-Suite"
 	  TEST_REGEX "^integration"
-	  DEPEND_ON_TARGETS ${INTEGRATION_TEST_TARGETS})
+	  DEPEND_ON_TARGETS ${TESTING__INTEGRATION_TESTS})
 	
 	ADD_TEST_SUITE(
 	  NAME "Cpplint-Test-Suite"
@@ -178,3 +313,36 @@ function(CREATE_TEST_SUITES)
 	  NAME "Cppcheck-Test-Suite"
 	  TEST_REGEX "cppcheck")
 endfunction()
+
+
+function(ADD_TEST_SUITE)
+  set(options)
+  set(oneValueArgs NAME TEST_REGEX)
+  set(multiValueArgs DEPEND_ON_TARGETS)
+  cmake_parse_arguments(ADD_TEST_SUITE
+    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+  
+  #we have to escape the " for visual studio)
+  add_custom_target(${ADD_TEST_SUITE_NAME} COMMAND ctest --tests-regex \"${ADD_TEST_SUITE_TEST_REGEX}\" -C $<CONFIG>)
+   # This comment just ends the escaped signs, for VS highlighting "
+  if(ADD_TEST_SUITE_DEPEND_ON_TARGETS)
+    add_dependencies(${ADD_TEST_SUITE_NAME} ${ADD_TEST_SUITE_DEPEND_ON_TARGETS})
+  endif()
+  set_property(TARGET ${ADD_TEST_SUITE_NAME} PROPERTY FOLDER "_Test-Suites_")
+endfunction()
+
+
+function(TESTING__EXTRACT_UNIT_AND_INTEGRATION_TEST_TARGETS_)
+  set(TESTING__INTEGRATION_TESTS )
+  set(TESTING__UNIT_TESTS )
+
+  get_property(TESTING__AVAILABLE_TESTS GLOBAL PROPERTY TESTING__AVAILABLE_TESTS)
+  foreach(CURRENT_TEST ${TESTING__AVAILABLE_TESTS})
+    if(${CURRENT_TEST} MATCHES "integration_test")
+      list(APPEND TESTING__INTEGRATION_TESTS ${CURRENT_TEST})
+    else()
+      list(APPEND TESTING__UNIT_TESTS ${CURRENT_TEST})
+    endif()
+  endforeach()
+endfunction()
+
diff --git a/cmake/WarningLevels.cmake b/cmake/WarningLevels.cmake
index 56a8e549bb1067c10917f306c3ef5e7b68d45396..cfe1929d1499691c9051370dd51170a008947a62 100644
--- a/cmake/WarningLevels.cmake
+++ b/cmake/WarningLevels.cmake
@@ -34,6 +34,7 @@ set(WARNING_LEVELS_RWTH_CLANG
   -Wno-weak-vtables
   -Wno-exit-time-destructors
   -Wno-global-constructors
+  -Wno-padded
 )
 
 set(WARNING_LEVELS_RWTH_GCC
diff --git a/cmake/cppcheck.cmake b/cmake/cppcheck.cmake
index 0f0416429527034f4cb413afef17df299c27f293..686a8abcdc7132a7208ec6163aaed78d9768d5c5 100644
--- a/cmake/cppcheck.cmake
+++ b/cmake/cppcheck.cmake
@@ -36,7 +36,7 @@ else()
   message(STATUS "Use cppcheck from: ${CPPCHECK_COMMAND}")
 endif()
 
-set(CPPCHECK_ARGUMENTS --enable=warning,performance,portability,missingInclude,unusedFunction,style --error-exitcode=1 --quiet --verbose)
+set(CPPCHECK_ARGUMENTS --enable=warning,performance,portability,missingInclude,style --suppress=unusedFunction --error-exitcode=1 --quiet --verbose)
 if(MSVC)
   list(APPEND CPPCHECK_ARGUMENTS --template=vs)
 elseif(CLANG)
diff --git a/cmake/cpplint.cmake b/cmake/cpplint.cmake
index 9342399d3f15c119b3fd1fddeb4fe741fa8dc999..30f125900088e662e140b531bbd9804c3b373ec8 100644
--- a/cmake/cpplint.cmake
+++ b/cmake/cpplint.cmake
@@ -77,5 +77,5 @@ function(ADD_TEST_CPPLINT)
     COMMAND ${PYTHON_EXECUTABLE} ${CPPLINT_COMMAND} ${CPPLINT_OUTPUT} ${CPPLINT_ARGS}
     ${ADD_TEST_CPPLINT_UNPARSED_ARGUMENTS}
     )
-  set_tests_properties(${ADD_TEST_CPPLINT_NAME} PROPERTIES TIMEOUT 20.0)
+  set_tests_properties(${ADD_TEST_CPPLINT_NAME} PROPERTIES TIMEOUT 100.0)
 endfunction()
diff --git a/cmake/suppress_warnings.hpp.in b/cmake/suppress_warnings.hpp.in
index 5a9ae8a7c8ad2d395ce944f1a859c6d09c11b93c..ddd2a44b761befa44ce4e8096990ea918503ce1b 100644
--- a/cmake/suppress_warnings.hpp.in
+++ b/cmake/suppress_warnings.hpp.in
@@ -40,10 +40,8 @@
   _Pragma("clang diagnostic ignored \"-Wsign-conversion\"")               \
   _Pragma("clang diagnostic ignored \"-Wnewline-eof\"")                   \
   _Pragma("clang diagnostic ignored \"-Wnon-virtual-dtor\"")              \
+  _Pragma("clang diagnostic ignored \"-Wzero-as-null-pointer-constant\"") \
   _Pragma("clang diagnostic ignored \"-Wextra-semi\"")
-#define SUPPRESS_WARNINGS_BEGIN_PADDED \
-  _Pragma("clang diagnostic push")                                        \
-  _Pragma("clang diagnostic ignored \"-Wpadded\"")
 #define SUPPRESS_WARNINGS_BEGIN_MISSING_DECLARATIONS                      \
   _Pragma("clang diagnostic push")                                        \
   _Pragma("clang diagnostic ignored \"-Wmissing-prototypes\"")
@@ -51,7 +49,6 @@
 
 #elif defined _MSC_VER
 #define SUPPRESS_WARNINGS_BEGIN __pragma(warning(push, 0));
-#define SUPPRESS_WARNINGS_BEGIN_PADDED  __pragma(warning(push));
 #define SUPPRESS_WARNINGS_BEGIN_MISSING_DECLARATIONS  __pragma(warning(push));
 #define SUPPRESS_WARNINGS_END __pragma(warning(pop));
 
@@ -69,9 +66,6 @@
   _Pragma("GCC diagnostic ignored \"-Wextra\"")                           \
   _Pragma("GCC diagnostic ignored \"-Wmissing-declarations\"")            \
   _Pragma("GCC diagnostic ignored \"-Wpadded\"")
-#define SUPPRESS_WARNINGS_BEGIN_PADDED                                    \
-  _Pragma("GCC diagnostic push")                                          \
-  _Pragma("GCC diagnostic ignored \"-Wpadded\"")
 #define SUPPRESS_WARNINGS_BEGIN_MISSING_DECLARATIONS                      \
   _Pragma("GCC diagnostic push")                                          \
   _Pragma("GCC diagnostic ignored \"-Wmissing-declarations\"")
diff --git a/conanfile.py b/conanfile.py
index f76578b8f71b5b0ee45153a53fd986c97e7dc5d7..60af502d5c97d0c1c252ab90c5351b1822132d22 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -24,7 +24,7 @@ from conans import ConanFile, CMake
 
 class ProjectPhoenix(ConanFile):
     name = "phx"
-    version = "18.05.0"
+    version = "18.06.0"
     license = "3-Clause BSD License"
     description = """Project Phoenix"""
     settings = "os", "compiler", "build_type", "arch"
@@ -33,14 +33,14 @@ class ProjectPhoenix(ConanFile):
                 ("boost_optional/1.66.0@bincrafters/testing"),
                 ("boost_signals2/1.66.0@bincrafters/testing"), #still not working in stable, change whenever available (also boost_optional)
                 ("catch/1.12.0@RWTH-VR/thirdparty"),
-                ("cppcheck/1.82@RWTH-VR/thirdparty"),
+                ("cppcheck/1.84@RWTH-VR/thirdparty"),
                 ("cpplint/e8ffd7c@RWTH-VR/thirdparty"),
                 ("freeimage/3.17.0_2@RWTH-VR/thirdparty"),
                 ("gl/1.1.1@RWTH-VR/thirdparty"),
                 ("glm/0.9.8.5@g-truc/stable"),
                 ("jsonformoderncpp/3.0.1@vthiery/stable"),
                 ("openvr/1.0.12@RWTH-VR/thirdparty"),
-                ("sdl2/2.0.7@bincrafters/stable"),
+                ("sdl2/2.0.8@bincrafters/stable"),
                 ("spdlog/0.16.3@bincrafters/stable"),
                 ("trompeloeil/v29@rollbear/stable"))
     generators = "cmake"
@@ -67,6 +67,6 @@ class ProjectPhoenix(ConanFile):
        self.copy("*.dll", dst="demos/combustion_demo/Debug", src="bin")
        self.copy("*.dll", dst="demos/combustion_demo/Release", src="bin")
        self.copy("*.so", dst="lib", src="lib")
-       self.copy("*.so*", dst="lib", src="lib")
+       self.copy("*.so.*", dst="lib", src="lib")
        self.copy("*.dylib", dst="lib", src="lib")
        self.copy("*.dylib", dst="tests", src="lib")
diff --git a/demos/combustion_demo/src/combustion_demo.cpp b/demos/combustion_demo/src/combustion_demo.cpp
index ab98cf21304a2b4c89fb7af0d7c128616598acde..1703a2e915ec08804cb3b5925d32dc6d0890735c 100644
--- a/demos/combustion_demo/src/combustion_demo.cpp
+++ b/demos/combustion_demo/src/combustion_demo.cpp
@@ -33,24 +33,27 @@
 #include "phx/core/runtime_component.hpp"
 #include "phx/display/display_system_openvr.hpp"
 #include "phx/display/display_system_window.hpp"
+#include "phx/input/device_system.hpp"
 #include "phx/input/input_system.hpp"
 #include "phx/rendering/auxiliary/splash_screen.hpp"
 #include "phx/rendering/components/mesh_handle.hpp"
+#include "phx/rendering/components/mesh_render_settings.hpp"
 #include "phx/resources/loaders/assimp_model_loader.hpp"
 #include "phx/resources/loaders/scene_loader.hpp"
 #include "phx/setup.hpp"
-#include "vr_controller_navigation_behavior.hpp"
+#include "vr_controller_interaction_behavior.hpp"
 
 #if defined __clang__
 #pragma clang diagnostic ignored "-Wmissing-prototypes"
 #endif
 
 int main(int, char**) {
-  std::unique_ptr<phx::Engine> engine = phx::Setup::CreateDefaultEngine(false);
+  std::unique_ptr<phx::Engine> engine = phx::Setup::CreateDefaultEngine(true);
   auto scene = engine->GetScene();
   auto rendering_system = engine->GetSystem<phx::RenderingSystem>();
   rendering_system->SetEnabled(false);
   auto openvr_system = engine->GetSystem<phx::DisplaySystemOpenVR>();
+  auto device_system = engine->GetSystem<phx::DeviceSystem>();
 
   phx::SplashScreen* splash = engine->CreateSystem<phx::SplashScreen>(
       engine->GetSystem<phx::DisplaySystemWindow>()->GetWindow());
@@ -69,15 +72,17 @@ int main(int, char**) {
     if (key == 'q') engine->Stop();
   });
 
-  auto virtual_platform = scene->GetEntitiesWithComponents<
-      phx::RuntimeComponent<phx::USER_PLATFORM>>()[0];
-  // virtual_platform->AddComponent<DesktopNavigationBehavior>(
-  //    engine->GetSystem<phx::InputSystem>());
-  auto controller_navigation_behavior =
-      virtual_platform->AddComponent<VRControllerNavigationBehavior>(
-          openvr_system);
+  auto right_controller_entities = scene->GetEntitiesWithComponents<
+      phx::RuntimeComponent<phx::RIGHT_CONTROLLER>>();
+  VRControllerInteractionBehavior* right_interaction_behavior = nullptr;
+  if (right_controller_entities.size() >= 1) {
+    auto right_controller_entity = right_controller_entities[0];
+    right_interaction_behavior =
+        right_controller_entity->AddComponent<VRControllerInteractionBehavior>(
+            device_system);
+  }
 
-  auto handle = std::async([&controller_navigation_behavior, &scene,
+  auto handle = std::async([&right_interaction_behavior, &scene,
                             rendering_system, splash, input_system,
                             openvr_system]() {
     auto model_surface_entity = phx::SceneLoader::InsertModelIntoScene(
@@ -98,10 +103,13 @@ int main(int, char**) {
         "models/combustion/data_box.stl", scene.get());
     auto boundingbox_transform =
         model_boundingbox->GetFirstComponent<phx::Transform>();
-    auto boundingbox_mesh_handle = boundingbox_transform->GetChild(0)
-                                       ->GetEntity()
-                                       ->GetFirstComponent<phx::MeshHandle>();
-    boundingbox_mesh_handle->SetWireframeMode(true);
+    auto boundigbox_mesh_entity =
+        boundingbox_transform->GetChild(0)->GetEntity();
+    auto boundingbox_mesh_handle =
+        boundigbox_mesh_entity->GetFirstComponent<phx::MeshHandle>();
+    auto render_settings =
+        boundigbox_mesh_entity->AddComponent<phx::MeshRenderSettings>();
+    render_settings->SetWireframeMode(true);
 
     std::array<glm::vec3, 2> bbox =
         boundingbox_mesh_handle->GetMesh()->GetBoundingBox();
@@ -130,7 +138,8 @@ int main(int, char**) {
         glm::vec3(1.0f, 1.0f, 1.0f));
     floor_material->GetMaterial()->SetAmbientColor(glm::vec3(0.1f, 0.1f, 0.1f));
 
-    controller_navigation_behavior->SetTarget(vis_root_transform);
+    if (right_interaction_behavior)
+      right_interaction_behavior->SetTarget(vis_root_transform);
 
     auto desk_entity = phx::SceneLoader::InsertModelIntoScene(
         "models/cube/cube2.obj", scene.get());
@@ -196,6 +205,8 @@ int main(int, char**) {
 
   if (!openvr_system) {
     camera->AddComponent<DesktopNavigationBehavior>(input_system);
+    camera->GetFirstComponent<phx::Transform>()->Translate(
+        glm::vec3(0.0f, 1.0f, 1.0f));
   }
 
   engine->Run();
diff --git a/demos/combustion_demo/src/vr_controller_interaction_behavior.cpp b/demos/combustion_demo/src/vr_controller_interaction_behavior.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6d113a15013a3ef318979fae5e1fbf739d8451ae
--- /dev/null
+++ b/demos/combustion_demo/src/vr_controller_interaction_behavior.cpp
@@ -0,0 +1,105 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "vr_controller_interaction_behavior.hpp"
+
+#include <vector>
+
+#include "phx/suppress_warnings.hpp"
+
+SUPPRESS_WARNINGS_BEGIN
+#include "glm/detail/type_vec3.hpp"
+#include "glm/glm.hpp"
+#include "glm/gtc/matrix_access.hpp"
+SUPPRESS_WARNINGS_END
+
+#include "phx/core/engine.hpp"
+#include "phx/core/entity.hpp"
+#include "phx/core/runtime_component.hpp"
+#include "phx/core/scene.hpp"
+#include "phx/display/display_system_openvr.hpp"
+#include "phx/display/hmd.hpp"
+#include "phx/rendering/components/transform.hpp"
+
+VRControllerInteractionBehavior::VRControllerInteractionBehavior(
+    phx::DeviceSystem* device_system)
+    : device_system_(device_system) {}
+
+void VRControllerInteractionBehavior::OnButtonSignal(
+    phx::VRController::ButtonId id, phx::VRController::ButtonEvent event) {
+  const auto transform = GetEntity()->GetFirstComponent<phx::Transform>();
+  if (target_ != nullptr) {
+    if (event == phx::VRController::BUTTON_PRESSED &&
+        id == vr::EVRButtonId::k_EButton_SteamVR_Trigger) {
+      if (transform != nullptr)
+        target_->SetParent(GetEntity()->GetFirstComponent<phx::Transform>());
+    }
+    if (event == phx::VRController::BUTTON_RELEASED &&
+        id == vr::EVRButtonId::k_EButton_SteamVR_Trigger) {
+      target_->SetParent(nullptr);
+    }
+  }
+}
+
+void VRControllerInteractionBehavior::OnUpdate() {
+  if (side_ == phx::VRController::INVALID_CONTROLLER) {
+    RegisterOnDeviceSignal();
+  }
+}
+
+void VRControllerInteractionBehavior::SetTarget(phx::Transform* target) {
+  target_ = target;
+}
+
+phx::Transform* VRControllerInteractionBehavior::GetTarget() const {
+  return target_;
+}
+
+void VRControllerInteractionBehavior::RegisterOnDeviceSignal() {
+  if (GetEntity()
+          ->GetFirstComponent<phx::RuntimeComponent<phx::LEFT_CONTROLLER>>() !=
+      nullptr)
+    side_ = phx::VRController::LEFT_CONTROLLER;
+  else if (GetEntity()
+               ->GetFirstComponent<
+                   phx::RuntimeComponent<phx::RIGHT_CONTROLLER>>() != nullptr)
+    side_ = phx::VRController::RIGHT_CONTROLLER;
+  else
+    phx::warn(
+        "Added VRControllerInteractionBehavior to a non-controller entity");
+
+  phx::VRController* controller = nullptr;
+  for (auto cont : device_system_->GetDevices<phx::VRController>()) {
+    if (cont->GetSide() == side_) {
+      controller = cont;
+      break;
+    }
+  }
+
+  if (controller != nullptr) {
+    controller->RegisterButtonSignal(
+        [this](phx::VRController::ButtonId id,
+               phx::VRController::ButtonEvent event) {
+          this->OnButtonSignal(id, event);
+        });
+  }
+}
diff --git a/demos/combustion_demo/src/vr_controller_interaction_behavior.hpp b/demos/combustion_demo/src/vr_controller_interaction_behavior.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..c66c364edaf9e77ec3f5dd6938facee53789c175
--- /dev/null
+++ b/demos/combustion_demo/src/vr_controller_interaction_behavior.hpp
@@ -0,0 +1,62 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#ifndef DEMOS_COMBUSTION_DEMO_SRC_VR_CONTROLLER_INTERACTION_BEHAVIOR_HPP_
+#define DEMOS_COMBUSTION_DEMO_SRC_VR_CONTROLLER_INTERACTION_BEHAVIOR_HPP_
+
+#include "phx/input/device_system.hpp"
+#include "phx/input/vr_controller.hpp"
+#include "phx/rendering/components/transform.hpp"
+#include "phx/scripting/behavior.hpp"
+
+class VRControllerInteractionBehavior : public phx::Behavior {
+ public:
+  explicit VRControllerInteractionBehavior(phx::DeviceSystem* device_system);
+  VRControllerInteractionBehavior(const VRControllerInteractionBehavior& that) =
+      default;
+  VRControllerInteractionBehavior(VRControllerInteractionBehavior&& temp) =
+      default;
+  virtual ~VRControllerInteractionBehavior() = default;
+  VRControllerInteractionBehavior& operator=(
+      const VRControllerInteractionBehavior& that) = default;
+  VRControllerInteractionBehavior& operator=(
+      VRControllerInteractionBehavior&& temp) = default;
+
+  void OnUpdate() override;
+  void OnButtonSignal(phx::VRController::ButtonId id,
+                      phx::VRController::ButtonEvent event);
+
+  void SetTarget(phx::Transform* target);
+  phx::Transform* GetTarget() const;
+
+ protected:
+  phx::DeviceSystem* device_system_;
+
+ private:
+  void RegisterOnDeviceSignal();
+
+  phx::Transform* target_ = nullptr;
+  phx::VRController::ControllerSide side_ =
+      phx::VRController::INVALID_CONTROLLER;
+};
+
+#endif  // DEMOS_COMBUSTION_DEMO_SRC_VR_CONTROLLER_INTERACTION_BEHAVIOR_HPP_
diff --git a/demos/combustion_demo/src/vr_controller_navigation_behavior.cpp b/demos/combustion_demo/src/vr_controller_navigation_behavior.cpp
deleted file mode 100644
index 79d59837cba7a58dc44d2e46f68ee043c61af330..0000000000000000000000000000000000000000
--- a/demos/combustion_demo/src/vr_controller_navigation_behavior.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-//------------------------------------------------------------------------------
-// Project Phoenix
-//
-// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
-// Virtual Reality & Immersive Visualization Group.
-//------------------------------------------------------------------------------
-//                                 License
-//
-// Licensed under the 3-Clause BSD License (the "License");
-// you may not use this file except in compliance with the License.
-// See the file LICENSE for the full text.
-// You may obtain a copy of the License at
-//
-//     https://opensource.org/licenses/BSD-3-Clause
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//------------------------------------------------------------------------------
-
-#include "vr_controller_navigation_behavior.hpp"
-
-#include <vector>
-
-#include "phx/suppress_warnings.hpp"
-
-SUPPRESS_WARNINGS_BEGIN
-#include "glm/detail/type_vec3.hpp"
-#include "glm/glm.hpp"
-#include "glm/gtc/matrix_access.hpp"
-SUPPRESS_WARNINGS_END
-
-#include "phx/core/engine.hpp"
-#include "phx/core/entity.hpp"
-#include "phx/core/runtime_component.hpp"
-#include "phx/core/scene.hpp"
-#include "phx/display/display_system_openvr.hpp"
-#include "phx/display/hmd.hpp"
-#include "phx/rendering/components/transform.hpp"
-
-VRControllerNavigationBehavior::VRControllerNavigationBehavior(
-    phx::DisplaySystemOpenVR* display_system_openvr)
-    : display_system_openvr_(display_system_openvr) {}
-
-void VRControllerNavigationBehavior::OnUpdate() {
-  // If there exists an HMD and a transform.
-  phx::HMD* hmd = nullptr;
-  if (display_system_openvr_ != nullptr) {
-    hmd = display_system_openvr_->GetHMD();
-  }
-  const auto transform = GetEntity()->GetFirstComponent<phx::Transform>();
-  if (hmd == nullptr || transform == nullptr) return;
-
-  auto indices = hmd->GetControllerIndices();
-
-  for (auto i = 0u; i < indices.size(); ++i) {
-    vr::VRControllerState_t controller_state;
-    vr::VRSystem()->GetControllerState(indices[i], &controller_state,
-                                       sizeof controller_state);
-
-    // Set the transform based on whether the trigger is pressed.
-    if (controller_state.ulButtonTouched &
-        vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_SteamVR_Trigger))
-      transform->Translate(
-          -0.05F * glm::column(hmd->GetRightControllerTransformation(), 2));
-
-    if (target_) {
-      if (!is_grip_down_ &&
-          controller_state.ulButtonPressed &
-              vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_Grip)) {
-        target_->SetParent(
-            GetEntity()
-                ->GetScene()
-                ->GetEntitiesWithComponents<
-                    phx::RuntimeComponent<phx::RIGHT_CONTROLLER>>()[0]
-                ->GetFirstComponent<phx::Transform>());
-        is_grip_down_ = true;
-      } else if (is_grip_down_ &&
-                 controller_state.ulButtonPressed &
-                     vr::ButtonMaskFromId(
-                         vr::EVRButtonId::k_EButton_SteamVR_Touchpad)) {
-        target_->SetParent(nullptr);
-        is_grip_down_ = false;
-      }
-    }
-  }
-}
-
-void VRControllerNavigationBehavior::SetTarget(phx::Transform* target) {
-  target_ = target;
-}
-
-phx::Transform* VRControllerNavigationBehavior::GetTarget() const {
-  return target_;
-}
diff --git a/demos/viewer/src/navigation_behavior.cpp b/demos/viewer/src/navigation_behavior.cpp
deleted file mode 100644
index e9c914fd4d8658c03d65d1362203764739d3e2ed..0000000000000000000000000000000000000000
--- a/demos/viewer/src/navigation_behavior.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//------------------------------------------------------------------------------
-// Project Phoenix
-//
-// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
-// Virtual Reality & Immersive Visualization Group.
-//------------------------------------------------------------------------------
-//                                 License
-//
-// Licensed under the 3-Clause BSD License (the "License");
-// you may not use this file except in compliance with the License.
-// See the file LICENSE for the full text.
-// You may obtain a copy of the License at
-//
-//     https://opensource.org/licenses/BSD-3-Clause
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//------------------------------------------------------------------------------
-
-#include "navigation_behavior.hpp"
-
-#include <vector>
-
-#include "phx/suppress_warnings.hpp"
-
-SUPPRESS_WARNINGS_BEGIN
-#include "glm/detail/type_vec3.hpp"
-#include "glm/glm.hpp"
-#include "glm/gtc/matrix_access.hpp"
-SUPPRESS_WARNINGS_END
-
-#include "phx/core/engine.hpp"
-#include "phx/core/entity.hpp"
-#include "phx/core/scene.hpp"
-#include "phx/display/display_system_openvr.hpp"
-#include "phx/display/hmd.hpp"
-#include "phx/rendering/components/transform.hpp"
-
-NavigationBehavior::NavigationBehavior(
-    phx::DisplaySystemOpenVR* display_system_openvr)
-    : display_system_openvr_(display_system_openvr) {}
-
-void NavigationBehavior::OnUpdate() {
-  // If there exists an HMD and a transform.
-  phx::HMD* hmd = nullptr;
-  if (display_system_openvr_ != nullptr) {
-    hmd = display_system_openvr_->GetHMD();
-  }
-  const auto transform = GetEntity()->GetFirstComponent<phx::Transform>();
-  if (hmd == nullptr || transform == nullptr) return;
-
-  auto indices = hmd->GetControllerIndices();
-
-  for (auto i = 0u; i < indices.size(); ++i) {
-    vr::VRControllerState_t controller_state;
-    vr::VRSystem()->GetControllerState(indices[i], &controller_state,
-                                       sizeof controller_state);
-
-    // Set the transform based on whether the trigger is pressed.
-    if (controller_state.ulButtonTouched &
-        vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_SteamVR_Trigger))
-      transform->Translate(
-          -0.05F * glm::column(hmd->GetRightControllerTransformation(), 2));
-    if (controller_state.ulButtonTouched &
-        vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_SteamVR_Touchpad))
-      transform->Translate(
-          0.05F * glm::column(hmd->GetRightControllerTransformation(), 2));
-  }
-}
diff --git a/demos/viewer/src/viewer.cpp b/demos/viewer/src/viewer.cpp
index d8d6fe5a575496de37b140e615c349bb0ee62fa0..a43834aba9cadeb24c0425e9c2373a7b4026f78d 100644
--- a/demos/viewer/src/viewer.cpp
+++ b/demos/viewer/src/viewer.cpp
@@ -22,10 +22,7 @@
 
 #include <chrono>
 #include <future>
-#include <iostream>
 #include <memory>
-#include <string>
-#include <utility>
 #include <vector>
 
 #include "phx/core/engine.hpp"
@@ -36,47 +33,40 @@
 #include "phx/display/display_system_openvr.hpp"
 #include "phx/display/display_system_window.hpp"
 #include "phx/display/window.hpp"
+#include "phx/input/device_system.hpp"
 #include "phx/input/input_system.hpp"
 #include "phx/rendering/auxiliary/splash_screen.hpp"
 #include "phx/rendering/components/light.hpp"
-#include "phx/rendering/components/material_handle.hpp"
-#include "phx/rendering/components/mesh_handle.hpp"
 #include "phx/rendering/components/transform.hpp"
 #include "phx/rendering/rendering_system.hpp"
 #include "phx/resources/loaders/assimp_model_loader.hpp"
-#include "phx/resources/loaders/openvr_resource_loader.hpp"
 #include "phx/resources/loaders/scene_loader.hpp"
-#include "phx/resources/types/mesh.hpp"
-#include "phx/resources/resource_declaration.hpp"
 #include "phx/resources/resource_manager.hpp"
-#include "phx/resources/resource_pointer.hpp"
-#include "phx/phoenix.hpp"
 #include "phx/setup.hpp"
 
-#include "navigation_behavior.hpp"
-#include "rotation_behavior.hpp"
 #include "viewer_system.hpp"
+#include "vrcontroller_navigation_behavior.hpp"
 
 #if defined __clang__
 #pragma clang diagnostic ignored "-Wmissing-prototypes"
 #endif
 
 int main(int, char**) {
-  std::unique_ptr<phx::Engine> engine = phx::Setup::CreateDefaultEngine(false);
+  std::unique_ptr<phx::Engine> engine = phx::Setup::CreateDefaultEngine(true);
   auto scene = engine->GetScene();
   auto rendering_system = engine->GetSystem<phx::RenderingSystem>();
   rendering_system->SetEnabled(false);
 
   phx::SplashScreen* splash = engine->CreateSystem<phx::SplashScreen>(
-    engine->GetSystem<phx::DisplaySystemWindow>()->GetWindow());
+      engine->GetSystem<phx::DisplaySystemWindow>()->GetWindow());
   engine->MoveSystemBefore(splash,
-    engine->GetSystem<phx::DisplaySystemWindow>());
+                           engine->GetSystem<phx::DisplaySystemWindow>());
 
   auto assimp_loader = static_cast<phx::AssimpModelLoader*>(
-    phx::ResourceManager::instance().GetLoaderForType(".obj"));
+      phx::ResourceManager::instance().GetLoaderForType(".obj"));
 
   assimp_loader->SetProgressUpdateCallback(
-    [splash](float progress) { splash->SetLoadProgress(progress); });
+      [splash](float progress) { splash->SetLoadProgress(progress); });
 
   phx::InputSystem* input_system = engine->GetSystem<phx::InputSystem>();
   ViewerSystem* viewer_system = engine->CreateSystem<ViewerSystem>();
@@ -88,8 +78,8 @@ int main(int, char**) {
   });
 
   auto handle = std::async([&scene, rendering_system, splash]() {
-    phx::SceneLoader::InsertModelIntoScene(
-      "models/UniversityScene/Univers20171013.obj", scene.get());
+    phx::SceneLoader::InsertModelIntoScene("models/bunny.obj", scene.get());
+    // "models/UniversityScene/Univers20171013.obj"
 
     rendering_system->SetEnabled(true);
     splash->SetEnabled(false);
@@ -124,8 +114,9 @@ int main(int, char**) {
   virtual_platform_transform->SetLocalTranslation(start_position);
   phx::info("The  virtual platform's start position is: {}", start_position);
 
-  virtual_platform->AddComponent<NavigationBehavior>(
-      engine->GetSystem<phx::DisplaySystemOpenVR>());
+  virtual_platform->AddComponent<VRControllerNavigationBehavior>(
+      engine->GetSystem<phx::DeviceSystem>(),
+      phx::VRController::RIGHT_CONTROLLER);
 
   engine->Run();
 
diff --git a/demos/viewer/src/viewer_system.hpp b/demos/viewer/src/viewer_system.hpp
index 82dc5c9536685b356d43e3442c08b7aaff71e4dd..dcb4d7168a8d7c85fa9139653846d83a9ef33ab4 100644
--- a/demos/viewer/src/viewer_system.hpp
+++ b/demos/viewer/src/viewer_system.hpp
@@ -31,14 +31,12 @@
 #include "phx/core/frame_timer.hpp"
 #include "phx/core/system.hpp"
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class ViewerSystem : public phx::System {
  public:
   ViewerSystem() = delete;
   ViewerSystem(const ViewerSystem&) = delete;
   ViewerSystem(ViewerSystem&&) = default;
-  ~ViewerSystem() = default;
+  ~ViewerSystem() override = default;
 
   bool GetShowFramerate() const;
   void SetShowFramerate(bool show_framerate);
@@ -58,6 +56,4 @@ class ViewerSystem : public phx::System {
   explicit ViewerSystem(phx::Engine* engine);
 };
 
-SUPPRESS_WARNINGS_END
-
 #endif  // DEMOS_VIEWER_SRC_VIEWER_SYSTEM_HPP_
diff --git a/demos/viewer/src/vrcontroller_navigation_behavior.cpp b/demos/viewer/src/vrcontroller_navigation_behavior.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9acee895c5d9784aa53d6c017de0fd72a8e5b7ba
--- /dev/null
+++ b/demos/viewer/src/vrcontroller_navigation_behavior.cpp
@@ -0,0 +1,99 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "vrcontroller_navigation_behavior.hpp"
+
+#include "phx/suppress_warnings.hpp"
+
+SUPPRESS_WARNINGS_BEGIN
+#include "glm/detail/type_vec3.hpp"
+#include "glm/glm.hpp"
+#include "glm/gtc/matrix_access.hpp"
+SUPPRESS_WARNINGS_END
+
+#include "phx/core/entity.hpp"
+#include "phx/core/logger.hpp"
+#include "phx/core/runtime_component.hpp"
+#include "phx/display/hmd.hpp"
+#include "phx/rendering/components/transform.hpp"
+
+VRControllerNavigationBehavior::VRControllerNavigationBehavior(
+    phx::DeviceSystem* device_system, phx::VRController::ControllerSide side)
+    : device_system_(device_system), side_(side) {
+  phx::VRController* controller = GetController();
+
+  if (controller != nullptr) {
+    controller->RegisterButtonSignal(
+        [this](phx::VRController::ButtonId id,
+               phx::VRController::ButtonEvent event) {
+          this->OnButtonSignal(id, event);
+        });
+  }
+}
+
+void VRControllerNavigationBehavior::OnUpdate() {
+  const auto transform = GetEntity()->GetFirstComponent<phx::Transform>();
+  phx::VRController* controller = GetController();
+  if (transform != nullptr && controller != nullptr && button_pressed_) {
+    glm::mat4 controller_pos = controller->GetPose();
+    glm::vec3 controller_forward = glm::column(controller_pos, 2);
+    float speed =
+        speed_ * static_cast<float>(time_info_->time_since_last_frame.count());
+    speed *=
+        -1.0f * controller->GetAxesValue(phx::VRController::AXES_TRACKPAD)[1];
+    transform->Translate(speed * controller_forward);
+  }
+
+  phx::info("speed_: {}, axes: {}, time: {}, button_pressed: {}", speed_,
+            controller->GetAxesValue(phx::VRController::AXES_TRACKPAD),
+            time_info_->time_since_last_frame.count(), button_pressed_);
+}
+
+void VRControllerNavigationBehavior::OnButtonSignal(
+    phx::VRController::ButtonId id, phx::VRController::ButtonEvent event) {
+  if (event == phx::VRController::BUTTON_TOUCH) {
+    if (id == vr::EVRButtonId::k_EButton_SteamVR_Touchpad) {
+      button_pressed_ = true;
+    }
+  }
+  if (event == phx::VRController::BUTTON_UNTOUCH &&
+      id == vr::EVRButtonId::k_EButton_SteamVR_Touchpad) {
+    button_pressed_ = false;
+  }
+}
+
+float VRControllerNavigationBehavior::GetNavigationSpeed() const {
+  return speed_;
+}
+
+void VRControllerNavigationBehavior::SetNavigationSpeed(float speed) {
+  speed_ = speed;
+}
+
+phx::VRController* VRControllerNavigationBehavior::GetController() {
+  for (auto controller : device_system_->GetDevices<phx::VRController>()) {
+    if (controller->GetSide() == side_) {
+      return controller;
+    }
+  }
+  return nullptr;
+}
diff --git a/demos/combustion_demo/src/vr_controller_navigation_behavior.hpp b/demos/viewer/src/vrcontroller_navigation_behavior.hpp
similarity index 69%
rename from demos/combustion_demo/src/vr_controller_navigation_behavior.hpp
rename to demos/viewer/src/vrcontroller_navigation_behavior.hpp
index f0110d07f44bd3c2acd2d6287feced6af904c3db..2423ca508a6ea343fc986a77e7deb9613ef4afd5 100644
--- a/demos/combustion_demo/src/vr_controller_navigation_behavior.hpp
+++ b/demos/viewer/src/vrcontroller_navigation_behavior.hpp
@@ -20,17 +20,18 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#ifndef DEMOS_COMBUSTION_DEMO_SRC_VR_CONTROLLER_NAVIGATION_BEHAVIOR_HPP_
-#define DEMOS_COMBUSTION_DEMO_SRC_VR_CONTROLLER_NAVIGATION_BEHAVIOR_HPP_
+#ifndef DEMOS_VIEWER_SRC_VRCONTROLLER_NAVIGATION_BEHAVIOR_HPP_
+#define DEMOS_VIEWER_SRC_VRCONTROLLER_NAVIGATION_BEHAVIOR_HPP_
 
-#include "phx/display/display_system_openvr.hpp"
+#include "phx/input/device_system.hpp"
+#include "phx/input/vr_controller.hpp"
 #include "phx/rendering/components/transform.hpp"
 #include "phx/scripting/behavior.hpp"
 
 class VRControllerNavigationBehavior : public phx::Behavior {
  public:
   explicit VRControllerNavigationBehavior(
-      phx::DisplaySystemOpenVR* display_system_openvr);
+      phx::DeviceSystem* device_system, phx::VRController::ControllerSide side);
   VRControllerNavigationBehavior(const VRControllerNavigationBehavior& that) =
       default;
   VRControllerNavigationBehavior(VRControllerNavigationBehavior&& temp) =
@@ -42,16 +43,20 @@ class VRControllerNavigationBehavior : public phx::Behavior {
       VRControllerNavigationBehavior&& temp) = default;
 
   void OnUpdate() override;
+  void OnButtonSignal(phx::VRController::ButtonId id,
+                      phx::VRController::ButtonEvent event);
 
-  void SetTarget(phx::Transform* target);
-  phx::Transform* GetTarget() const;
-
- protected:
-  phx::DisplaySystemOpenVR* display_system_openvr_;
+  float GetNavigationSpeed() const;
+  void SetNavigationSpeed(float speed);
 
  private:
-  phx::Transform* target_ = nullptr;
-  bool is_grip_down_ = false;
+  phx::DeviceSystem* device_system_;
+  phx::VRController* GetController();
+
+  float speed_ = 0.5f;  // m/s
+  bool button_pressed_ = false;
+  phx::VRController::ControllerSide side_ =
+      phx::VRController::INVALID_CONTROLLER;
 };
 
-#endif  // DEMOS_COMBUSTION_DEMO_SRC_VR_CONTROLLER_NAVIGATION_BEHAVIOR_HPP_
+#endif  // DEMOS_VIEWER_SRC_VRCONTROLLER_NAVIGATION_BEHAVIOR_HPP_
diff --git a/library/phx/core/engine.hpp b/library/phx/core/engine.hpp
index 8f2f9f38ce3c43499539959cf0065bc0f5cf5e5c..fabc9c0bd93fe3fa98a91c9c1dd28950dc96b83c 100644
--- a/library/phx/core/engine.hpp
+++ b/library/phx/core/engine.hpp
@@ -43,21 +43,19 @@ SUPPRESS_WARNINGS_END
 #include "phx/core/frame_timer.hpp"
 #include "phx/core/scene.hpp"
 #include "phx/core/system.hpp"
+#include "phx/export.hpp"
 #include "phx/scripting/behavior.hpp"
 #include "phx/utility/aspects/loggable.hpp"
 #include "phx/utility/orderable_list.hpp"
-#include "phx/export.hpp"
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class PHOENIX_EXPORT Engine final : public Loggable {
  public:
   Engine();
   Engine(const Engine&) = delete;
   Engine(Engine&&) = default;
-  ~Engine();
+  ~Engine() override;
 
   Engine& operator=(const Engine&) = delete;
   Engine& operator=(Engine&&) = default;
@@ -165,8 +163,6 @@ std::vector<std::tuple<Components*...>> Engine::GetFirstComponentsMany() const {
   return scene_->GetFirstComponentsMany<Components...>();
 }
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace phx
 
 #endif  // LIBRARY_PHX_CORE_ENGINE_HPP_
diff --git a/library/phx/core/entity.hpp b/library/phx/core/entity.hpp
index 51bffc058a592a266ab21e9ba1740688ce54cf53..993438548637bb1baa3fb112dad705b52456e217 100644
--- a/library/phx/core/entity.hpp
+++ b/library/phx/core/entity.hpp
@@ -47,7 +47,7 @@ class PHOENIX_EXPORT Entity : public Nameable, public Loggable {
   explicit Entity(const std::string& name) : Nameable(name) {}
   Entity(const Entity&) = delete;
   Entity(Entity&&) = default;
-  virtual ~Entity() = default;
+  ~Entity() override = default;
 
   Entity& operator=(const Entity&) = delete;
   Entity& operator=(Entity&&) = default;
diff --git a/library/phx/core/scene.hpp b/library/phx/core/scene.hpp
index 6d4ba7d6b353587bbbc4f963ec86c058b66388e9..b4eb2d82437ab78d620b7d74c231bd2b85e4f74e 100644
--- a/library/phx/core/scene.hpp
+++ b/library/phx/core/scene.hpp
@@ -49,7 +49,7 @@ class PHOENIX_EXPORT Scene : public Nameable, public Loggable {
   Scene();
   Scene(const Scene&) = delete;
   Scene(Scene&&) = default;
-  ~Scene() = default;
+  ~Scene() override = default;
 
   Scene& operator=(const Scene&) = delete;
   Scene& operator=(Scene&&) = default;
diff --git a/library/phx/display/display_system.hpp b/library/phx/display/display_system.hpp
index fd06a71bcaa5b4dc3f3f3298da08113f5ce1105c..96d78f7f662980cff91fb7294972ba6cad778344 100644
--- a/library/phx/display/display_system.hpp
+++ b/library/phx/display/display_system.hpp
@@ -37,7 +37,7 @@ class PHOENIX_EXPORT DisplaySystem : public System {
  public:
   DisplaySystem(const DisplaySystem&) = delete;
   DisplaySystem(DisplaySystem&&) = default;
-  ~DisplaySystem();
+  ~DisplaySystem() override;
 
   DisplaySystem& operator=(const DisplaySystem&) = delete;
   DisplaySystem& operator=(DisplaySystem&&) = default;
diff --git a/library/phx/display/display_system_openvr.cpp b/library/phx/display/display_system_openvr.cpp
index a455ed5a07f6b738c4fd939f5402f22b04e55a8c..be1642e41657adba5f027f9e02f125b0956be080 100644
--- a/library/phx/display/display_system_openvr.cpp
+++ b/library/phx/display/display_system_openvr.cpp
@@ -33,6 +33,7 @@
 #include "phx/core/logger.hpp"
 #include "phx/core/runtime_component.hpp"
 #include "phx/core/scene.hpp"
+#include "phx/input/device_system.hpp"
 #include "phx/rendering/rendering_system.hpp"
 
 #undef CreateWindow
@@ -50,28 +51,20 @@ DisplaySystemOpenVR::DisplaySystemOpenVR(Engine* engine)
 }
 DisplaySystemOpenVR::~DisplaySystemOpenVR() {}
 
-phx::HMD* DisplaySystemOpenVR::CreateHMD() {
-  if (hmd_ == nullptr) {
-    hmd_ = std::make_unique<HMD>();
-  } else {
-    warn(
-        "[DisplaySystemOpenVR] HMD already created, so far only one is "
-        "supported.");
-  }
-  return hmd_.get();
+phx::HMD* DisplaySystemOpenVR::GetHMD() {
+  auto hmds = engine_->GetSystem<DeviceSystem>()->GetDevices<HMD>();
+  if (hmds.size() == 0) return nullptr;
+  return hmds[0];
 }
 
-void DisplaySystemOpenVR::DestroyHMD() { hmd_.reset(); }
-
-phx::HMD* DisplaySystemOpenVR::GetHMD() { return hmd_.get(); }
-
 void DisplaySystemOpenVR::Update(const FrameTimer::TimeInfo&) {
-  if (hmd_ != nullptr) {
+  HMD* hmd = GetHMD();
+  if (hmd != nullptr) {
     if (left_render_target_ != nullptr && right_render_target_ != nullptr) {
       auto right_texture = right_render_target_->GetColorTexture();
-      hmd_->Submit(HMD::RIGHT_EYE, right_texture);
+      hmd->Submit(HMD::RIGHT_EYE, right_texture);
       auto left_texture = left_render_target_->GetColorTexture();
-      hmd_->Submit(HMD::LEFT_EYE, left_texture);
+      hmd->Submit(HMD::LEFT_EYE, left_texture);
     }
   }
 }
diff --git a/library/phx/display/display_system_openvr.hpp b/library/phx/display/display_system_openvr.hpp
index 0fcdec3ddac0296a707c9e39afb980c87babd653..0e195ed9ba54aa8682d84d4853a14074fcee5245 100644
--- a/library/phx/display/display_system_openvr.hpp
+++ b/library/phx/display/display_system_openvr.hpp
@@ -30,8 +30,8 @@
 #include "phx/display/display_system.hpp"
 #include "phx/display/hmd.hpp"
 #include "phx/display/window.hpp"
-#include "phx/rendering/backend/render_target.hpp"
 #include "phx/export.hpp"
+#include "phx/rendering/backend/render_target.hpp"
 
 namespace phx {
 
@@ -40,22 +40,17 @@ class PHOENIX_EXPORT DisplaySystemOpenVR : public DisplaySystem {
   explicit DisplaySystemOpenVR(Engine* engine);
   DisplaySystemOpenVR(const DisplaySystemOpenVR&) = delete;
   DisplaySystemOpenVR(DisplaySystemOpenVR&&) = default;
-  ~DisplaySystemOpenVR();
+  ~DisplaySystemOpenVR() override;
 
   DisplaySystemOpenVR& operator=(const DisplaySystemOpenVR&) = delete;
   DisplaySystemOpenVR& operator=(DisplaySystemOpenVR&&) = default;
 
-  HMD* CreateHMD();
-  void DestroyHMD();
   HMD* GetHMD();
 
   void Update(const FrameTimer::TimeInfo&) override;
 
   void CreateRenderTargets(Scene* scene);
 
- protected:
-  std::unique_ptr<HMD> hmd_;
-
  private:
   void RemoveRenderTargets();
   void SetEyeProjections(Scene* scene);
diff --git a/library/phx/display/display_system_window.hpp b/library/phx/display/display_system_window.hpp
index 1b41d76bb2835b793bed04e3dc284ed03013a6c9..cf8a3b559bbcc58796be3b1e4b34b76d01c36392 100644
--- a/library/phx/display/display_system_window.hpp
+++ b/library/phx/display/display_system_window.hpp
@@ -41,7 +41,7 @@ class PHOENIX_EXPORT DisplaySystemWindow : public DisplaySystem {
   explicit DisplaySystemWindow(Engine* engine);
   DisplaySystemWindow(const DisplaySystemWindow&) = delete;
   DisplaySystemWindow(DisplaySystemWindow&&) = default;
-  ~DisplaySystemWindow();
+  ~DisplaySystemWindow() override;
 
   DisplaySystemWindow& operator=(const DisplaySystemWindow&) = delete;
   DisplaySystemWindow& operator=(DisplaySystemWindow&&) = default;
diff --git a/library/phx/display/hmd.cpp b/library/phx/display/hmd.cpp
index c43329e2076bf3ad6dca6f6bb04affa19112f743..f8d72a6ffaf9c5b2cff31fb25c1dad7c02abc725 100644
--- a/library/phx/display/hmd.cpp
+++ b/library/phx/display/hmd.cpp
@@ -25,7 +25,6 @@
 #include <algorithm>
 #include <array>
 #include <memory>
-#include <stdexcept>
 #include <string>
 #include <utility>
 #include <vector>
@@ -42,16 +41,10 @@ SUPPRESS_WARNINGS_END
 
 #include "phx/core/logger.hpp"
 #include "phx/resources/resource_manager.hpp"
-#include "phx/resources/resource_pointer.hpp"
 
 namespace phx {
-HMD::HMD() {
-  vr::HmdError hmd_error = vr::VRInitError_None;
-  vr_system_ = vr::VR_Init(&hmd_error, vr::VRApplication_Scene);
-  if (vr_system_ == nullptr || hmd_error != vr::VRInitError_None) {
-    error("HMD cannot be initialized with error-code: {}", hmd_error);
-    throw std::runtime_error("OpenVR cannot be initialized!");
-  }
+HMD::HMD() : TrackedDevice() {
+  id_ = vr::k_unTrackedDeviceIndex_Hmd;
 
   uint32_t x, y;
   vr_system_->GetRecommendedRenderTargetSize(&x, &y);
@@ -60,12 +53,9 @@ HMD::HMD() {
   projection_right_ = GetProjectionMatrixFromOpenVR(vr::Hmd_Eye::Eye_Right);
   projection_left_ = GetProjectionMatrixFromOpenVR(vr::Hmd_Eye::Eye_Left);
 
-  eye_to_head_right_ = GetEyeToHeadMatrixFromOpenVR(vr::Hmd_Eye::Eye_Right);
-  eye_to_head_left_ = GetEyeToHeadMatrixFromOpenVR(vr::Hmd_Eye::Eye_Left);
+  UpdateEyeToHeadMatrices();
 }
 
-HMD::~HMD() { vr::VR_Shutdown(); }
-
 bool HMD::IsHMDPresent() { return vr::VR_IsHmdPresent(); }
 
 void HMD::Submit(Side side, gl::texture_2d* texture) {
@@ -75,18 +65,7 @@ void HMD::Submit(Side side, gl::texture_2d* texture) {
   vr::VRCompositor()->Submit(static_cast<vr::EVREye>(side), &vr_texture);
 }
 
-std::vector<vr::TrackedDeviceIndex_t> HMD::GetControllerIndices() {
-  std::vector<std::uint32_t> indices(vr::k_unMaxTrackedDeviceCount);
-  vr::VRSystem()->GetSortedTrackedDeviceIndicesOfClass(
-      vr::TrackedDeviceClass_Controller, indices.data(),
-      static_cast<std::uint32_t>(indices.size()));
-  return indices;
-}
-
-vr::ETrackedControllerRole HMD::GetControllerRoleForTrackedDeviceIndex(
-    vr::TrackedDeviceIndex_t device_index) const {
-  return vr_system_->GetControllerRoleForTrackedDeviceIndex(device_index);
-}
+void HMD::UpdateDeviceIndex() { id_ = vr::k_unTrackedDeviceIndex_Hmd; }
 
 const glm::uvec2& HMD::GetViewportSize() const { return viewport_size_; }
 
@@ -104,142 +83,26 @@ const glm::mat4& HMD::GetEyeToHeadMatrix(Side side) const {
     return eye_to_head_left_;
 }
 
-void HMD::UpdateTrackedDevices() {
-  vr::VRCompositor()->WaitGetPoses(tracked_device_poses_,
-                                   vr::k_unMaxTrackedDeviceCount, NULL, 0);
-}
+void HMD::Update() {
+  last_wait_get_poses_.resize(vr::k_unMaxTrackedDeviceCount);
 
-glm::mat4 HMD::GetHeadTransformation() {
-  if (tracked_device_poses_[vr::k_unTrackedDeviceIndex_Hmd].bPoseIsValid) {
-    glm::mat4 head = TransformToGlmMatrix(
-        tracked_device_poses_[vr::k_unTrackedDeviceIndex_Hmd]
+  vr::VRCompositor()->WaitGetPoses(&last_wait_get_poses_[0],
+                                   vr::k_unMaxTrackedDeviceCount, NULL, 0);
+  if (last_wait_get_poses_[vr::k_unTrackedDeviceIndex_Hmd].bPoseIsValid) {
+    pose_ = TransformToGlmMatrix(
+        last_wait_get_poses_[vr::k_unTrackedDeviceIndex_Hmd]
             .mDeviceToAbsoluteTracking);
-    last_head_transformation_ = head;
-    return head;
+  } else {
+    debug("[HMD] HMD pose is invalid, use the last valid one");
   }
-  debug("[HMD] HMD pose is invalid, use the last valid one");
-  return last_head_transformation_;
-}
-
-glm::mat4 HMD::GetTransformationForRole(vr::ETrackedControllerRole role) {
-  auto controller_indices = GetControllerIndices();
-  for (auto i = 0u; i < controller_indices.size(); ++i)
-    if (vr_system_->GetControllerRoleForTrackedDeviceIndex(
-            controller_indices[i]) == role)
-      return TransformToGlmMatrix(tracked_device_poses_[controller_indices[i]]
-                                      .mDeviceToAbsoluteTracking);
-  debug(
-      "[HMD::GetTransformationForRole] Unable to find tranformation for role "
-      "{}",
-      role);
-  return glm::mat4();
-}
-
-glm::mat4 HMD::GetLeftControllerTransformation() {
-  return GetTransformationForRole(vr::TrackedControllerRole_LeftHand);
-}
 
-glm::mat4 HMD::GetRightControllerTransformation() {
-  return GetTransformationForRole(vr::TrackedControllerRole_RightHand);
+  TrackedDevice::Update();
 }
 
-std::unique_ptr<phx::Mesh> HMD::GetControllerMesh(Controller controller) {
-  auto model = GetControllerModel(controller);
-  if (model == nullptr) {
-    return nullptr;
+void HMD::OnOpenVREvent(const vr::VREvent_t& event) {
+  if (event.eventType == vr::VREvent_IpdChanged) {
+    UpdateEyeToHeadMatrices();
   }
-  auto mesh = std::make_unique<phx::Mesh>();
-  std::vector<glm::vec3> vertices;
-  std::vector<glm::vec3> normals;
-  std::vector<glm::vec2> texcoords;
-  for (std::size_t i = 0; i < model->unVertexCount; i++) {
-    vertices.push_back(glm::vec3(model->rVertexData[i].vPosition.v[0],
-                                 model->rVertexData[i].vPosition.v[1],
-                                 model->rVertexData[i].vPosition.v[2]));
-    normals.push_back(glm::vec3(model->rVertexData[i].vNormal.v[0],
-                                model->rVertexData[i].vNormal.v[1],
-                                model->rVertexData[i].vNormal.v[2]));
-    texcoords.push_back(glm::vec2(model->rVertexData[i].rfTextureCoord[0],
-                                  model->rVertexData[i].rfTextureCoord[1]));
-  }
-  std::vector<unsigned int> indices;
-  for (std::size_t i = 0; i < model->unTriangleCount * 3; i++) {
-    indices.push_back(model->rIndexData[i]);
-  }
-  mesh->SetVertices(std::move(vertices));
-  mesh->SetNormals(std::move(normals));
-  mesh->SetTextureCoords(std::move(texcoords));
-  mesh->SetIndices(std::move(indices));
-  return mesh;
-}
-
-vr::RenderModel_t* HMD::GetControllerModel(Controller controller) {
-  std::string rendermodel_name;
-  rendermodel_name.resize(1024);
-  auto controller_indices = GetControllerIndices();
-  for (auto i = 0u; i < controller_indices.size(); ++i) {
-    if (vr_system_->GetControllerRoleForTrackedDeviceIndex(
-            controller_indices[i]) ==
-        static_cast<vr::ETrackedControllerRole>(controller)) {
-      vr::VRSystem()->GetStringTrackedDeviceProperty(
-          controller_indices[i], vr::Prop_RenderModelName_String,
-          &rendermodel_name[0], static_cast<uint32_t>(rendermodel_name.size()));
-    }
-  }
-
-  vr::RenderModel_t* model = nullptr;
-  while (vr::VRRenderModels()->LoadRenderModel_Async(
-             &rendermodel_name[0], &model) == vr::VRRenderModelError_Loading) {
-    std::this_thread::sleep_for(std::chrono::milliseconds(50));
-  }
-  if (model == nullptr) {
-    return nullptr;
-  }
-
-  return model;
-}
-
-std::unique_ptr<Material> HMD::GetControllerMaterial(Controller controller) {
-  auto model = GetControllerModel(controller);
-  if (model == nullptr) return nullptr;
-
-  auto material = std::make_unique<phx::Material>();
-  material->SetAmbientColor(glm::vec3(0.1, 0.1, 0.1));
-  material->SetSpecularColor(glm::vec3(0.3, 0.3, 0.3));
-
-  auto texture = ResourceManager::instance().DeclareResource<Image>(
-      {{"TYPE", "openVR"},
-       {"OpenVR_type", "texture"},
-       {"texture_id", model->diffuseTextureId},
-       {"side",
-        controller == HMD::Controller::LEFT_CONTROLLER ? "left" : "right"}});
-  texture.Load();
-  material->SetDiffuseImage(texture);
-
-  return material;
-}
-
-std::unique_ptr<Image> HMD::GetControllerTexture(int id) {
-  vr::RenderModel_TextureMap_t* texture_map;
-  while (vr::VRRenderModels()->LoadTexture_Async(id, &texture_map) ==
-         vr::VRRenderModelError_Loading) {
-    std::this_thread::sleep_for(std::chrono::milliseconds(50));
-  }
-  if (texture_map == nullptr) {
-    return nullptr;
-  }
-
-  std::vector<unsigned char> image_data(texture_map->unWidth *
-                                        texture_map->unHeight * 4);
-  std::copy(texture_map->rubTextureMapData,
-            texture_map->rubTextureMapData + image_data.size(),
-            image_data.begin());
-  auto image = std::make_unique<phx::Image>(
-      &image_data[0], std::array<std::size_t, 2>{
-                      {static_cast<std::size_t>(texture_map->unWidth),
-                       static_cast<std::size_t>(texture_map->unHeight)}}, 32);
-
-  return image;
 }
 
 glm::mat4 HMD::GetProjectionMatrixFromOpenVR(const vr::Hmd_Eye eye) {
@@ -256,18 +119,9 @@ glm::mat4 HMD::GetEyeToHeadMatrixFromOpenVR(const vr::Hmd_Eye eye) {
   return TransformToGlmMatrix(steamvr_eye_head_matrix);
 }
 
-glm::mat4 HMD::TransformToGlmMatrix(const vr::HmdMatrix34_t& mat) {
-  return glm::mat4(mat.m[0][0], mat.m[1][0], mat.m[2][0], 0.0f, mat.m[0][1],
-                   mat.m[1][1], mat.m[2][1], 0.0f, mat.m[0][2], mat.m[1][2],
-                   mat.m[2][2], 0.0f, mat.m[0][3], mat.m[1][3], mat.m[2][3],
-                   1.0f);
-}
-
-glm::mat4 HMD::TransformToGlmMatrix(const vr::HmdMatrix44_t& mat) {
-  return glm::mat4(mat.m[0][0], mat.m[1][0], mat.m[2][0], mat.m[3][0],
-                   mat.m[0][1], mat.m[1][1], mat.m[2][1], mat.m[3][1],
-                   mat.m[0][2], mat.m[1][2], mat.m[2][2], mat.m[3][2],
-                   mat.m[0][3], mat.m[1][3], mat.m[2][3], mat.m[3][3]);
+void HMD::UpdateEyeToHeadMatrices() {
+  eye_to_head_right_ = GetEyeToHeadMatrixFromOpenVR(vr::Hmd_Eye::Eye_Right);
+  eye_to_head_left_ = GetEyeToHeadMatrixFromOpenVR(vr::Hmd_Eye::Eye_Left);
 }
 
 }  // namespace phx
diff --git a/library/phx/display/hmd.hpp b/library/phx/display/hmd.hpp
index 4bf398e9009ead18a97c8aec08fbdce9345be680..be7f5f0f6398c3a2d03ad65af177873e5e9c9628 100644
--- a/library/phx/display/hmd.hpp
+++ b/library/phx/display/hmd.hpp
@@ -35,20 +35,20 @@ SUPPRESS_WARNINGS_BEGIN
 #include "openvr.h"  //NOLINT
 SUPPRESS_WARNINGS_END
 
+#include "phx/export.hpp"
+#include "phx/input/tracked_device.hpp"
 #include "phx/resources/types/material.hpp"
 #include "phx/resources/types/mesh.hpp"
-#include "phx/export.hpp"
 
 #include "gl/texture.hpp"
 
 namespace phx {
 
-class OpenVRResourceLoader;
-
-class PHOENIX_EXPORT HMD {
+class PHOENIX_EXPORT HMD : public TrackedDevice {
  public:
   HMD();
-  ~HMD();
+  ~HMD() = default;
+
   HMD(const HMD&) = delete;
   HMD(HMD&&) = default;
 
@@ -60,45 +60,25 @@ class PHOENIX_EXPORT HMD {
     LEFT_EYE = vr::EVREye::Eye_Left
   };
 
-  enum Controller {
-    RIGHT_CONTROLLER = vr::TrackedControllerRole_RightHand,
-    LEFT_CONTROLLER = vr::TrackedControllerRole_LeftHand
-  };
+  void Update() override;
+  void OnOpenVREvent(const vr::VREvent_t& event) override;
 
   const glm::uvec2& GetViewportSize() const;
 
   const glm::mat4& GetProjectionMatrix(Side side) const;
   const glm::mat4& GetEyeToHeadMatrix(Side side) const;
 
-  void UpdateTrackedDevices();
-  glm::mat4 GetHeadTransformation();
-  glm::mat4 GetLeftControllerTransformation();
-  glm::mat4 GetRightControllerTransformation();
-
   static bool IsHMDPresent();
 
   void Submit(Side side, gl::texture_2d* texture);
 
-  std::vector<vr::TrackedDeviceIndex_t> GetControllerIndices();
-  vr::ETrackedControllerRole GetControllerRoleForTrackedDeviceIndex(
-      vr::TrackedDeviceIndex_t device_index) const;
+  void UpdateDeviceIndex() override;
 
  private:
-  glm::mat4 GetTransformationForRole(vr::ETrackedControllerRole role);
-
   glm::mat4 GetProjectionMatrixFromOpenVR(const vr::Hmd_Eye eye);
   glm::mat4 GetEyeToHeadMatrixFromOpenVR(const vr::Hmd_Eye eye);
+  void UpdateEyeToHeadMatrices();
 
-  friend OpenVRResourceLoader;
-  vr::RenderModel_t* GetControllerModel(Controller controller);
-  std::unique_ptr<Mesh> GetControllerMesh(Controller controller);
-  std::unique_ptr<Material> GetControllerMaterial(Controller controller);
-  std::unique_ptr<Image> GetControllerTexture(int id);
-
-  static glm::mat4 TransformToGlmMatrix(const vr::HmdMatrix34_t& mat);
-  static glm::mat4 TransformToGlmMatrix(const vr::HmdMatrix44_t& mat);
-
-  vr::IVRSystem* vr_system_;
   glm::uvec2 viewport_size_;
 
   glm::mat4 projection_right_;
@@ -106,9 +86,6 @@ class PHOENIX_EXPORT HMD {
   glm::mat4 eye_to_head_right_;
   glm::mat4 eye_to_head_left_;
 
-  vr::TrackedDevicePose_t tracked_device_poses_
-      [vr::k_unMaxTrackedDeviceCount];  // NOLINT(runtime/arrays)
-
   glm::mat4 last_head_transformation_;
 };
 
diff --git a/library/phx/input/device.cpp b/library/phx/input/device.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..5c68859d70073a2d10a384ed647c75afdd66c9b0
--- /dev/null
+++ b/library/phx/input/device.cpp
@@ -0,0 +1,25 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "phx/input/device.hpp"
+
+namespace phx {}  // namespace phx
diff --git a/demos/viewer/src/navigation_behavior.hpp b/library/phx/input/device.hpp
similarity index 57%
rename from demos/viewer/src/navigation_behavior.hpp
rename to library/phx/input/device.hpp
index ac2e06c9ef98424e746f42a41d3880e5079781da..c477639764a905efdc712809d5a74034be7aaf98 100644
--- a/demos/viewer/src/navigation_behavior.hpp
+++ b/library/phx/input/device.hpp
@@ -20,25 +20,19 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#ifndef DEMOS_VIEWER_SRC_NAVIGATION_BEHAVIOR_HPP_
-#define DEMOS_VIEWER_SRC_NAVIGATION_BEHAVIOR_HPP_
+#ifndef LIBRARY_PHX_INPUT_DEVICE_HPP_
+#define LIBRARY_PHX_INPUT_DEVICE_HPP_
 
-#include "phx/display/display_system_openvr.hpp"
-#include "phx/scripting/behavior.hpp"
+#include "phx/export.hpp"
 
-class NavigationBehavior : public phx::Behavior {
- public:
-  explicit NavigationBehavior(phx::DisplaySystemOpenVR* display_system_openvr);
-  NavigationBehavior(const NavigationBehavior& that) = default;
-  NavigationBehavior(NavigationBehavior&& temp) = default;
-  virtual ~NavigationBehavior() = default;
-  NavigationBehavior& operator=(const NavigationBehavior& that) = default;
-  NavigationBehavior& operator=(NavigationBehavior&& temp) = default;
-
-  void OnUpdate() override;
+namespace phx {
 
- protected:
-  phx::DisplaySystemOpenVR* display_system_openvr_;
+class PHOENIX_EXPORT Device {
+ public:
+  virtual ~Device() = default;
+  virtual void Update() = 0;
 };
 
-#endif  // DEMOS_VIEWER_SRC_NAVIGATION_BEHAVIOR_HPP_
+}  // namespace phx
+
+#endif  // LIBRARY_PHX_INPUT_DEVICE_HPP_
diff --git a/tests/test_utilities/dummy_material_generator.cpp b/library/phx/input/device_system.cpp
similarity index 57%
rename from tests/test_utilities/dummy_material_generator.cpp
rename to library/phx/input/device_system.cpp
index 4dcf8e004a7d1bd854f0f734247ece4c1d28d155..c19d7947ef0a3d69cfecb728c33ddf9de591405a 100644
--- a/tests/test_utilities/dummy_material_generator.cpp
+++ b/library/phx/input/device_system.cpp
@@ -20,32 +20,34 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#include "dummy_material_generator.hpp"
+#include "phx/input/device_system.hpp"
 
 #include <memory>
+#include <string>
 #include <utility>
-#include <vector>
 
-#include "phx/resources/types/material.hpp"
+#include "phx/core/logger.hpp"
 
 namespace phx {
+DeviceSystem::DeviceSystem(Engine* engine) : System(engine) {}
 
-DummyMaterialGenerator::DummyMaterialGenerator(glm::vec3 diffuse_color,
-                                               glm::vec3 specular_color,
-                                               glm::vec3 ambient_color,
-                                               float shininess)
-    : material_{std::make_unique<phx::Material>()} {
-  material_->SetAmbientColor(ambient_color);
-  material_->SetDiffuseColor(diffuse_color);
-  material_->SetSpecularColor(specular_color);
-  material_->SetShininess(shininess);
+DeviceSystem::~DeviceSystem() {}
+
+void DeviceSystem::Update(const FrameTimer::TimeInfo&) {
+  for (auto& device : devices_) {
+    device->Update();
+  }
 }
 
-std::unique_ptr<phx::Resource> DummyMaterialGenerator::Load(
-    const ResourceDeclaration&) {
-  auto new_material = std::make_unique<phx::Material>();
-  *new_material = *material_;
-  return new_material;
+void DeviceSystem::RemoveDevice(Device* device) {
+  auto iterator =
+      std::remove_if(devices_.begin(), devices_.end(),
+                     [device](const std::unique_ptr<Device>& iteratee) {
+                       return device == iteratee.get();
+                     });
+  devices_.erase(iterator, devices_.end());
 }
 
+std::string DeviceSystem::ToString() const { return "DeviceSystem"; }
+
 }  // namespace phx
diff --git a/library/phx/input/device_system.hpp b/library/phx/input/device_system.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..644b8b471f4a3ed5b0ce43f5628dc33c7128ff6d
--- /dev/null
+++ b/library/phx/input/device_system.hpp
@@ -0,0 +1,84 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#ifndef LIBRARY_PHX_INPUT_DEVICE_SYSTEM_HPP_
+#define LIBRARY_PHX_INPUT_DEVICE_SYSTEM_HPP_
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "phx/core/engine.hpp"
+#include "phx/core/system.hpp"
+#include "phx/export.hpp"
+#include "phx/input/device.hpp"
+
+namespace phx {
+class InputSystem;
+
+class PHOENIX_EXPORT DeviceSystem : public System {
+ public:
+  DeviceSystem() = delete;
+  DeviceSystem(const DeviceSystem&) = delete;
+  DeviceSystem(DeviceSystem&&) = default;
+  virtual ~DeviceSystem();
+
+  DeviceSystem& operator=(const DeviceSystem&) = delete;
+  DeviceSystem& operator=(DeviceSystem&&) = default;
+
+  void Update(const FrameTimer::TimeInfo& time_info) override;
+
+  template <typename DeviceType>
+  std::vector<DeviceType*> GetDevices() {
+    static_assert(std::is_base_of<Device, DeviceType>::value,
+                  "The type does not inherit from Device.");
+
+    std::vector<DeviceType*> devices;
+    for (const auto& device : devices_) {
+      auto casted_device = dynamic_cast<DeviceType*>(device.get());
+      if (casted_device != nullptr) {
+        devices.push_back(casted_device);
+      }
+    }
+    return devices;
+  }
+
+  template <typename DeviceType, typename... ComponentArguments>
+  DeviceType* AddDevice(ComponentArguments&&... arguments) {
+    devices_.push_back(std::make_unique<DeviceType>(arguments...));
+    return dynamic_cast<DeviceType*>(devices_.back().get());
+  }
+
+  void RemoveDevice(Device* device);
+
+  std::string ToString() const override;
+
+ private:
+  friend DeviceSystem* Engine::CreateSystem<DeviceSystem>();
+  explicit DeviceSystem(Engine* engine);
+
+  std::vector<std::unique_ptr<Device>> devices_;
+};
+
+}  // namespace phx
+
+#endif  // LIBRARY_PHX_INPUT_DEVICE_SYSTEM_HPP_
diff --git a/library/phx/input/input_system.hpp b/library/phx/input/input_system.hpp
index bd9d6076aa905c46fec92866711bdd4321cc7490..9862ea78119438869c1e37162909df8c9faba169 100644
--- a/library/phx/input/input_system.hpp
+++ b/library/phx/input/input_system.hpp
@@ -45,7 +45,7 @@ class PHOENIX_EXPORT InputSystem : public System {
   InputSystem() = delete;
   InputSystem(const InputSystem&) = delete;
   InputSystem(InputSystem&&) = default;
-  virtual ~InputSystem();
+  ~InputSystem() override;
 
   void Update(const FrameTimer::TimeInfo& time_info) override;
 
@@ -73,20 +73,12 @@ class PHOENIX_EXPORT InputSystem : public System {
 
   void UpdateSDLEvents();
 
-  // TODO(@tvierjahn) check if Wpadded is here only emitted by some clang
-  // versions.
-  // There will be only one input system.Padding will not waste
-  // significant memory
-  SUPPRESS_WARNINGS_BEGIN_PADDED
-
   boost::signals2::signal<void()> quit_signal_;
   boost::signals2::signal<void(char)> key_press_signal_;
   boost::signals2::signal<void(char)> key_release_signal_;
   boost::signals2::signal<void(int, int)> mouse_move_signal_;
   boost::signals2::signal<void(unsigned int)> mouse_press_signal_;
   boost::signals2::signal<void(unsigned int)> mouse_release_signal_;
-
-  SUPPRESS_WARNINGS_END
 };
 
 }  // namespace phx
diff --git a/library/phx/input/openvr_controller_behavior.cpp b/library/phx/input/openvr_controller_behavior.cpp
index cd229828f4a407039f843dc5219e07d7d5c6aaca..fefc8a7c802f0c27dc679072401cffb559017d98 100644
--- a/library/phx/input/openvr_controller_behavior.cpp
+++ b/library/phx/input/openvr_controller_behavior.cpp
@@ -31,14 +31,14 @@ namespace phx {
 void OpenVRControllerBehavior::OnUpdate() {
   phx::Scene* scene = GetEntity()->GetScene();
   phx::Entity* runtime_entity = nullptr;
-  if (side_ == Side::LEFT) {
+  if (side_ == VRController::LEFT_CONTROLLER) {
     auto runtime_entities = scene->GetEntitiesWithComponents<
         phx::RuntimeComponent<phx::LEFT_CONTROLLER>>();
     if (!runtime_entities.empty()) {
       runtime_entity = runtime_entities[0];
     }
   }
-  if (side_ == Side::RIGHT) {
+  if (side_ == VRController::RIGHT_CONTROLLER) {
     auto runtime_entities = scene->GetEntitiesWithComponents<
         phx::RuntimeComponent<phx::RIGHT_CONTROLLER>>();
     if (!runtime_entities.empty()) {
@@ -53,9 +53,11 @@ void OpenVRControllerBehavior::OnUpdate() {
   }
 }
 
-void OpenVRControllerBehavior::SetSide(Side side) { side_ = side; }
+void OpenVRControllerBehavior::SetSide(VRController::ControllerSide side) {
+  side_ = side;
+}
 
-OpenVRControllerBehavior::Side OpenVRControllerBehavior::GetSide() const {
+VRController::ControllerSide OpenVRControllerBehavior::GetSide() const {
   return side_;
 }
 
diff --git a/library/phx/input/openvr_controller_behavior.hpp b/library/phx/input/openvr_controller_behavior.hpp
index c31643b67d511b4a813eb82e0d75db5f0039648d..9f8ce400b7a42d04937543ca2daf4df505361814 100644
--- a/library/phx/input/openvr_controller_behavior.hpp
+++ b/library/phx/input/openvr_controller_behavior.hpp
@@ -25,24 +25,21 @@
 
 #include "phx/suppress_warnings.hpp"
 
-#include "phx/scripting/behavior.hpp"
 #include "phx/export.hpp"
+#include "phx/input/vr_controller.hpp"
+#include "phx/scripting/behavior.hpp"
 
 namespace phx {
-SUPPRESS_WARNINGS_BEGIN_PADDED
 class PHOENIX_EXPORT OpenVRControllerBehavior : public Behavior {
  public:
-  enum Side { LEFT, RIGHT };
-
   void OnUpdate() override;
 
-  void SetSide(Side side);
-  Side GetSide() const;
+  void SetSide(VRController::ControllerSide side);
+  VRController::ControllerSide GetSide() const;
 
  private:
-  Side side_ = Side::LEFT;
+  VRController::ControllerSide side_ = VRController::LEFT_CONTROLLER;
 };
-SUPPRESS_WARNINGS_END
 }  // namespace phx
 
 #endif  // LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_BEHAVIOR_HPP_
diff --git a/library/phx/input/openvr_controller_system.cpp b/library/phx/input/openvr_controller_model_system.cpp
similarity index 75%
rename from library/phx/input/openvr_controller_system.cpp
rename to library/phx/input/openvr_controller_model_system.cpp
index eecf2be7c87c8437f68888ac9670a81bb7123009..643328fc5d8d7169f2b312a6ea9573d3dda354b2 100644
--- a/library/phx/input/openvr_controller_system.cpp
+++ b/library/phx/input/openvr_controller_model_system.cpp
@@ -20,7 +20,7 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#include "phx/input/openvr_controller_system.hpp"
+#include "phx/input/openvr_controller_model_system.hpp"
 
 #include <memory>
 #include <string>
@@ -29,6 +29,7 @@
 #include "phx/core/logger.hpp"
 #include "phx/display/display_system_openvr.hpp"
 #include "phx/input/openvr_controller_behavior.hpp"
+#include "phx/input/vr_controller.hpp"
 #include "phx/rendering/components/material_handle.hpp"
 #include "phx/rendering/components/mesh_handle.hpp"
 #include "phx/rendering/components/transform.hpp"
@@ -38,18 +39,11 @@
 
 namespace phx {
 
-OpenVRControllerSystem::OpenVRControllerSystem(Engine* engine,
-                                               DisplaySystem* display_system)
-    : System(engine) {
-  // find HMD
-  hmd_ = dynamic_cast<DisplaySystemOpenVR*>(display_system)->GetHMD();
-  if (hmd_ == nullptr) {
-    error("Cannot use OpenVRControllerSystem without an HMD!");
-    return;
-  }
-
+OpenVRControllerModelSystem::OpenVRControllerModelSystem(
+    Engine* engine, DeviceSystem* device_system)
+    : System(engine), device_system_(device_system) {
   auto& resource_manager = ResourceManager::instance();
-  auto openvr_loader = std::make_unique<OpenVRResourceLoader>(hmd_);
+  auto openvr_loader = std::make_unique<OpenVRResourceLoader>(device_system);
   resource_manager.RegisterResourceType("openVR", std::move(openvr_loader));
 }
 
@@ -58,11 +52,11 @@ OpenVRControllerSystem::OpenVRControllerSystem(Engine* engine,
 #pragma clang diagnostic ignored "-Wmissing-prototypes"
 #endif
 
-Entity* OpenVRControllerSystem::AddController(
-    phx::Scene* scene, OpenVRControllerBehavior::Side side) {
+Entity* OpenVRControllerModelSystem::AddController(
+    phx::Scene* scene, VRController::ControllerSide side) {
   auto& resource_manager = ResourceManager::instance();
   std::string side_string =
-      side == OpenVRControllerBehavior::LEFT ? "left" : "right";
+      side == VRController::LEFT_CONTROLLER ? "left" : "right";
 
   ResourceDeclaration mesh_declaration{
       {"TYPE", "openVR"}, {"OpenVR_type", "mesh"}, {"side", side_string}};
@@ -82,9 +76,9 @@ Entity* OpenVRControllerSystem::AddController(
   return nullptr;
 }
 
-Entity* OpenVRControllerSystem::AddControllerEntity(
+Entity* OpenVRControllerModelSystem::AddControllerEntity(
     phx::Scene* scene, ResourcePointer<Mesh> mesh,
-    ResourcePointer<Material> material, OpenVRControllerBehavior::Side side) {
+    ResourcePointer<Material> material, VRController::ControllerSide side) {
   Entity* controller = scene->CreateEntity();
   controller->AddComponent<MeshHandle>()->SetMesh(mesh);
   controller->AddComponent<Transform>();
@@ -98,10 +92,9 @@ Entity* OpenVRControllerSystem::AddControllerEntity(
 #pragma clang diagnostic pop
 #endif
 
-void OpenVRControllerSystem::Update(const FrameTimer::TimeInfo&) {
+void OpenVRControllerModelSystem::Update(const FrameTimer::TimeInfo&) {
   // check which controllers are active and update their scene representation,
   // if necessary
-  if (!hmd_) return;
   auto scene = GetEngine()->GetScene();
   if (scene == nullptr) return;
 
@@ -112,31 +105,30 @@ void OpenVRControllerSystem::Update(const FrameTimer::TimeInfo&) {
       GetEngine()->GetEntitiesWithComponents<OpenVRControllerBehavior>();
   for (auto entity : controller_entities) {
     if (entity->GetFirstComponent<OpenVRControllerBehavior>()->GetSide() ==
-        OpenVRControllerBehavior::LEFT) {
+        VRController::LEFT_CONTROLLER) {
       left_controller_entity = entity;
     } else {
       right_controller_entity = entity;
     }
   }
 
-  auto controller_indices = hmd_->GetControllerIndices();
   bool left_controller_active = false;
   bool right_controller_active = false;
-  for (auto idx : controller_indices) {
-    // is it a left controller?
-    auto role = hmd_->GetControllerRoleForTrackedDeviceIndex(idx);
-    if (role == vr::TrackedControllerRole_LeftHand) {
+
+  for (auto controller : device_system_->GetDevices<VRController>()) {
+    if (!controller->IsActive()) continue;
+    if (controller->GetSide() == VRController::LEFT_CONTROLLER) {
       // do we have a left controller in the scene?
       if (left_controller_entity == nullptr) {
         // create that controller
         left_controller_entity =
-            AddController(scene.get(), OpenVRControllerBehavior::LEFT);
+            AddController(scene.get(), VRController::LEFT_CONTROLLER);
       }
       left_controller_active = true;
-    } else if (role == vr::TrackedControllerRole_RightHand) {
+    } else if (controller->GetSide() == VRController::RIGHT_CONTROLLER) {
       if (right_controller_entity == nullptr) {
         right_controller_entity =
-            AddController(scene.get(), OpenVRControllerBehavior::RIGHT);
+            AddController(scene.get(), VRController::RIGHT_CONTROLLER);
       }
       right_controller_active = true;
     }
diff --git a/library/phx/input/openvr_controller_system.hpp b/library/phx/input/openvr_controller_model_system.hpp
similarity index 64%
rename from library/phx/input/openvr_controller_system.hpp
rename to library/phx/input/openvr_controller_model_system.hpp
index c382d2585a76e56a4c2cdcaa7215bb7c9fa09011..693e4d4d864091a269509d3f3f94a082536b5fc6 100644
--- a/library/phx/input/openvr_controller_system.hpp
+++ b/library/phx/input/openvr_controller_model_system.hpp
@@ -20,8 +20,8 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#ifndef LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_SYSTEM_HPP_
-#define LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_SYSTEM_HPP_
+#ifndef LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_MODEL_SYSTEM_HPP_
+#define LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_MODEL_SYSTEM_HPP_
 
 #include <memory>
 #include <vector>
@@ -34,40 +34,43 @@ SUPPRESS_WARNINGS_END
 
 #include "phx/core/engine.hpp"
 #include "phx/core/system.hpp"
-#include "phx/display/display_system.hpp"
 #include "phx/display/hmd.hpp"
-#include "phx/input/openvr_controller_behavior.hpp"
 #include "phx/export.hpp"
+#include "phx/input/device_system.hpp"
+#include "phx/input/openvr_controller_behavior.hpp"
+#include "phx/input/vr_controller.hpp"
 
 namespace phx {
-class PHOENIX_EXPORT OpenVRControllerSystem : public System {
+class PHOENIX_EXPORT OpenVRControllerModelSystem : public System {
  public:
-  OpenVRControllerSystem() = delete;
-  OpenVRControllerSystem(const OpenVRControllerSystem&) = delete;
-  OpenVRControllerSystem(OpenVRControllerSystem&&) = default;
-  virtual ~OpenVRControllerSystem() = default;
+  OpenVRControllerModelSystem() = delete;
+  OpenVRControllerModelSystem(const OpenVRControllerModelSystem&) = delete;
+  OpenVRControllerModelSystem(OpenVRControllerModelSystem&&) = default;
+  ~OpenVRControllerModelSystem() override = default;
 
-  OpenVRControllerSystem& operator=(const OpenVRControllerSystem&) = delete;
-  OpenVRControllerSystem& operator=(OpenVRControllerSystem&&) = default;
+  OpenVRControllerModelSystem& operator=(const OpenVRControllerModelSystem&) =
+      delete;
+  OpenVRControllerModelSystem& operator=(OpenVRControllerModelSystem&&) =
+      default;
 
   void Update(const FrameTimer::TimeInfo&) override;
 
  protected:
   template <typename SystemType, typename... SystemArguments>
   friend SystemType* Engine::CreateSystem(SystemArguments&&... arguments);
-  OpenVRControllerSystem(Engine* engine, DisplaySystem* display_system);
+  OpenVRControllerModelSystem(Engine* engine, DeviceSystem* device_system);
 
  private:
   static Entity* AddControllerEntity(phx::Scene* scene,
                                      ResourcePointer<Mesh> mesh,
                                      ResourcePointer<Material> material,
-                                     OpenVRControllerBehavior::Side side);
+                                     VRController::ControllerSide side);
   static Entity* AddController(phx::Scene* scene,
-                               OpenVRControllerBehavior::Side side);
+                               VRController::ControllerSide side);
 
-  HMD* hmd_ = nullptr;
+  DeviceSystem* device_system_ = nullptr;
 };
 
 }  // namespace phx
 
-#endif  // LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_SYSTEM_HPP_
+#endif  // LIBRARY_PHX_INPUT_OPENVR_CONTROLLER_MODEL_SYSTEM_HPP_
diff --git a/library/phx/input/tracked_device.cpp b/library/phx/input/tracked_device.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0800a10dc0068f407972ce018bb7a60a2d17636a
--- /dev/null
+++ b/library/phx/input/tracked_device.cpp
@@ -0,0 +1,139 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "phx/input/tracked_device.hpp"
+
+#include <vector>
+
+#include "phx/core/entity.hpp"
+#include "phx/core/logger.hpp"
+
+namespace phx {
+
+vr::IVRSystem* TrackedDevice::vr_system_ = nullptr;
+int TrackedDevice::reference_counter_ = 0;
+std::mutex TrackedDevice::openVR_init_mutex_;
+TrackedDevice::OpenVREventDistributer TrackedDevice::vr_event_distributer;
+std::vector<vr::TrackedDevicePose_t> TrackedDevice::last_wait_get_poses_;
+
+TrackedDevice::TrackedDevice() {
+  openVR_init_mutex_.lock();
+  if (vr_system_ == nullptr) {
+    vr::EVRInitError init_error = vr::VRInitError_None;
+    vr_system_ = vr::VR_Init(&init_error, vr::VRApplication_Scene);
+    if (vr_system_ == nullptr || init_error != vr::VRInitError_None) {
+      error("OpenVR cannot be initialized with error-code: {}", init_error);
+      throw std::runtime_error("OpenVR cannot be initialized!");
+    }
+  }
+  vr_event_distributer.AddDevice(this);
+  reference_counter_++;
+  openVR_init_mutex_.unlock();
+}
+
+TrackedDevice::~TrackedDevice() {
+  openVR_init_mutex_.lock();
+  reference_counter_--;
+  if (reference_counter_ == 0) {
+    vr::VR_Shutdown();
+    vr_system_ = nullptr;
+  }
+  vr_event_distributer.RemoveDevice(this);
+  openVR_init_mutex_.unlock();
+}
+
+void TrackedDevice::Update() {
+  if (id_ == vr::k_unTrackedDeviceIndexInvalid) return;
+
+  vr::TrackedDevicePose_t tracked_device_pose;
+  if (last_wait_get_poses_.size() == vr::k_unMaxTrackedDeviceCount) {
+    // the HMD has aquired the poses of all devices with WaitGetPoses()
+    tracked_device_pose = last_wait_get_poses_[id_];
+  } else {
+    // this tracked device has to get its pose itself directly from openVR
+    // this method however has a higher lag
+    vr::VRControllerState_t controller_state;
+    vr_system_->GetControllerStateWithPose(
+        vr::TrackingUniverseStanding, id_, &controller_state,
+        sizeof(controller_state), &tracked_device_pose);
+  }
+  if (tracked_device_pose.bPoseIsValid) {
+    pose_ = TransformToGlmMatrix(tracked_device_pose.mDeviceToAbsoluteTracking);
+  } else {
+    debug(
+        "[TrackedDevice] Tracked Device pose is invalid, device is marked as "
+        "invalid. The actual implementation has to find another valid index");
+    id_ = vr::k_unTrackedDeviceIndexInvalid;
+  }
+
+  vr_event_distributer.Update();
+}
+
+glm::mat4 TrackedDevice::GetPose() const { return pose_; }
+
+bool TrackedDevice::IsActive() const {
+  return id_ != vr::k_unTrackedDeviceIndexInvalid;
+}
+
+void TrackedDevice::OpenVREventDistributer::AddDevice(TrackedDevice* device) {
+  tracked_devices_.push_back(device);
+}
+
+void TrackedDevice::OpenVREventDistributer::RemoveDevice(
+    TrackedDevice* device) {
+  auto iterator =
+      std::remove_if(tracked_devices_.begin(), tracked_devices_.end(),
+                     [device](Device* iteratee) { return device == iteratee; });
+  tracked_devices_.erase(iterator, tracked_devices_.end());
+}
+
+void TrackedDevice::OpenVREventDistributer::Update() {
+  vr::VREvent_t event;
+  while (vr::VRSystem()->PollNextEvent(&event, sizeof(event))) {
+    for (TrackedDevice* device : tracked_devices_) {
+      device->OnOpenVREvent(event);
+    }
+  }
+}
+glm::mat4 TrackedDevice::TransformToGlmMatrix(const vr::HmdMatrix34_t& mat) {
+  return glm::mat4(mat.m[0][0], mat.m[1][0], mat.m[2][0], 0.0f, mat.m[0][1],
+                   mat.m[1][1], mat.m[2][1], 0.0f, mat.m[0][2], mat.m[1][2],
+                   mat.m[2][2], 0.0f, mat.m[0][3], mat.m[1][3], mat.m[2][3],
+                   1.0f);
+}
+
+glm::mat4 TrackedDevice::TransformToGlmMatrix(const vr::HmdMatrix44_t& mat) {
+  return glm::mat4(mat.m[0][0], mat.m[1][0], mat.m[2][0], mat.m[3][0],
+                   mat.m[0][1], mat.m[1][1], mat.m[2][1], mat.m[3][1],
+                   mat.m[0][2], mat.m[1][2], mat.m[2][2], mat.m[3][2],
+                   mat.m[0][3], mat.m[1][3], mat.m[2][3], mat.m[3][3]);
+}
+
+std::vector<vr::TrackedDeviceIndex_t> TrackedDevice::GetDeviceIndicesForClass(
+    vr::ETrackedDeviceClass device_class) {
+  std::vector<std::uint32_t> indices(vr::k_unMaxTrackedDeviceCount);
+  vr::VRSystem()->GetSortedTrackedDeviceIndicesOfClass(
+      device_class, indices.data(), static_cast<std::uint32_t>(indices.size()));
+  return indices;
+}
+
+}  // namespace phx
diff --git a/library/phx/input/tracked_device.hpp b/library/phx/input/tracked_device.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..d02805708c3326d5f9e6cbf24954f938b4e8c79f
--- /dev/null
+++ b/library/phx/input/tracked_device.hpp
@@ -0,0 +1,87 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#ifndef LIBRARY_PHX_INPUT_TRACKED_DEVICE_HPP_
+#define LIBRARY_PHX_INPUT_TRACKED_DEVICE_HPP_
+
+#include <vector>
+
+#include "phx/input/device.hpp"
+#include "phx/resources/types/material.hpp"
+#include "phx/resources/types/mesh.hpp"
+#include "phx/suppress_warnings.hpp"
+
+SUPPRESS_WARNINGS_BEGIN
+#include "glm/mat4x4.hpp"
+
+#include "openvr.h"  //NOLINT
+SUPPRESS_WARNINGS_END
+
+#include "phx/export.hpp"
+
+namespace phx {
+
+class PHOENIX_EXPORT TrackedDevice : public Device {
+ public:
+  TrackedDevice();
+  virtual ~TrackedDevice();
+
+  virtual void Update();
+
+  glm::mat4 GetPose() const;
+  bool IsActive() const;
+
+  virtual void UpdateDeviceIndex() = 0;
+  virtual void OnOpenVREvent(const vr::VREvent_t& event) = 0;
+
+ protected:
+  class OpenVREventDistributer {
+   public:
+    void Update();
+    void AddDevice(TrackedDevice* device);
+    void RemoveDevice(TrackedDevice* device);
+
+   private:
+    std::vector<TrackedDevice*> tracked_devices_;
+  };
+
+  static vr::IVRSystem* vr_system_;
+  static OpenVREventDistributer vr_event_distributer;
+  static std::vector<vr::TrackedDevicePose_t> last_wait_get_poses_;
+  glm::mat4 pose_;
+
+  static glm::mat4 TransformToGlmMatrix(const vr::HmdMatrix34_t& mat);
+  static glm::mat4 TransformToGlmMatrix(const vr::HmdMatrix44_t& mat);
+
+  std::vector<vr::TrackedDeviceIndex_t> GetDeviceIndicesForClass(
+      vr::ETrackedDeviceClass device_class);
+
+  vr::TrackedDeviceIndex_t id_ = vr::k_unTrackedDeviceIndexInvalid;
+
+ private:
+  static int reference_counter_;
+  static std::mutex openVR_init_mutex_;
+};
+
+}  // namespace phx
+
+#endif  // LIBRARY_PHX_INPUT_TRACKED_DEVICE_HPP_
diff --git a/library/phx/input/vr_controller.cpp b/library/phx/input/vr_controller.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..97d39c52d8aa704808f833300da0e80049152fa4
--- /dev/null
+++ b/library/phx/input/vr_controller.cpp
@@ -0,0 +1,141 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "phx/input/vr_controller.hpp"
+
+#include <string>
+#include <vector>
+
+#include "phx/core/logger.hpp"
+
+namespace phx {
+
+VRController::VRController(ControllerSide side) : TrackedDevice(), side_(side) {
+  VRController::Update();
+}
+
+void VRController::Update() {
+  if (id_ == vr::k_unTrackedDeviceIndexInvalid ||
+      GetControllerRoleForTrackedDeviceIndex(id_) != side_) {
+    UpdateDeviceIndex();
+  }
+  TrackedDevice::Update();
+}
+
+void VRController::OnOpenVREvent(const vr::VREvent_t& event) {
+  if (event.trackedDeviceIndex != id_) return;
+  if (event.eventType == vr::VREvent_ButtonPress) {
+    button_signal_(static_cast<ButtonId>(event.data.controller.button),
+                   ButtonEvent::BUTTON_PRESSED);
+  } else if (event.eventType == vr::VREvent_ButtonUnpress) {
+    button_signal_(static_cast<ButtonId>(event.data.controller.button),
+                   ButtonEvent::BUTTON_RELEASED);
+  } else if (event.eventType == vr::VREvent_ButtonTouch) {
+    button_signal_(static_cast<ButtonId>(event.data.controller.button),
+                   ButtonEvent::BUTTON_TOUCH);
+  } else if (event.eventType == vr::VREvent_ButtonUntouch) {
+    button_signal_(static_cast<ButtonId>(event.data.controller.button),
+                   ButtonEvent::BUTTON_UNTOUCH);
+  }
+}
+
+void VRController::UpdateDeviceIndex() {
+  auto controller_indices =
+      GetDeviceIndicesForClass(vr::TrackedDeviceClass_Controller);
+  id_ = vr::k_unTrackedDeviceIndexInvalid;
+  for (auto index : controller_indices) {
+    if (index != vr::k_unTrackedDeviceIndex_Hmd &&
+        GetControllerRoleForTrackedDeviceIndex(index) == side_) {
+      id_ = index;
+      return;
+    }
+  }
+}
+
+VRController::ControllerSide VRController::GetSide() const { return side_; }
+
+vr::RenderModel_t* VRController::GetModel() {
+  if (id_ == vr::k_unTrackedDeviceIndexInvalid) {
+    warn("Try to obtain controller model of an invalid controller");
+    return nullptr;
+  }
+
+  std::string rendermodel_name;
+  rendermodel_name.resize(vr::k_unMaxPropertyStringSize);
+
+  vr::VRSystem()->GetStringTrackedDeviceProperty(
+      id_, vr::Prop_RenderModelName_String, &rendermodel_name[0],
+      vr::k_unMaxPropertyStringSize);
+
+  vr::RenderModel_t* model = nullptr;
+  while (vr::VRRenderModels()->LoadRenderModel_Async(
+             &rendermodel_name[0], &model) == vr::VRRenderModelError_Loading) {
+    std::this_thread::sleep_for(std::chrono::milliseconds(50));
+  }
+
+  return model;
+}
+
+boost::signals2::connection VRController::RegisterButtonSignal(
+    const std::function<void(ButtonId, ButtonEvent)>& callback) {
+  return button_signal_.connect(callback);
+}
+
+glm::vec2 VRController::GetAxesValue(AxesId axes_id) {
+  if (!IsActive()) return glm::vec2(0.0f);
+
+  vr::TrackedDevicePose_t tracked_device_pose;
+  vr::VRControllerState_t controller_state;
+  vr_system_->GetControllerStateWithPose(
+      vr::TrackingUniverseStanding, id_, &controller_state,
+      sizeof(controller_state), &tracked_device_pose);
+
+  for (uint32_t i = 0; i < vr::k_unControllerStateAxisCount; i++) {
+    vr::EVRControllerAxisType type = static_cast<vr::EVRControllerAxisType>(
+        vr_system_->GetInt32TrackedDeviceProperty(
+            id_, static_cast<vr::ETrackedDeviceProperty>(
+                     vr::Prop_Axis0Type_Int32 + i)));
+    if (type == static_cast<vr::EVRControllerAxisType>(axes_id)) {
+      vr::VRControllerAxis_t axes = controller_state.rAxis[i];
+      return glm::vec2(axes.x, axes.y);
+    }
+  }
+  warn("VRController device  does not provide the requested axes: {} ",
+       vr_system_->GetControllerAxisTypeNameFromEnum(
+           static_cast<vr::EVRControllerAxisType>(axes_id)));
+  return glm::vec2(0.0f);
+}
+
+VRController::ControllerSide
+VRController::GetControllerRoleForTrackedDeviceIndex(
+    vr::TrackedDeviceIndex_t device_index) const {
+  switch (vr_system_->GetControllerRoleForTrackedDeviceIndex(device_index)) {
+    case vr::TrackedControllerRole_LeftHand:
+      return LEFT_CONTROLLER;
+    case vr::TrackedControllerRole_RightHand:
+      return RIGHT_CONTROLLER;
+    case vr::TrackedControllerRole_Invalid:
+      break;
+  }
+  return INVALID_CONTROLLER;
+}
+}  // namespace phx
diff --git a/library/phx/input/vr_controller.hpp b/library/phx/input/vr_controller.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..e9402b97223a14dd81f67606f35316c9be572e9a
--- /dev/null
+++ b/library/phx/input/vr_controller.hpp
@@ -0,0 +1,106 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#ifndef LIBRARY_PHX_INPUT_VR_CONTROLLER_HPP_
+#define LIBRARY_PHX_INPUT_VR_CONTROLLER_HPP_
+
+#include <memory>
+
+#define BOOST_BIND_NO_PLACEHOLDERS
+// otherwise boosts _ placeholders conflict with trompeloeil ones
+#include "boost/signals2/connection.hpp"
+#include "boost/signals2/signal.hpp"
+
+#include "phx/input/tracked_device.hpp"
+#include "phx/resources/types/material.hpp"
+#include "phx/resources/types/mesh.hpp"
+#include "phx/suppress_warnings.hpp"
+
+SUPPRESS_WARNINGS_BEGIN
+#include "glm/mat4x4.hpp"
+
+#include "openvr.h"  //NOLINT
+SUPPRESS_WARNINGS_END
+
+#include "phx/export.hpp"
+
+namespace phx {
+
+class OpenVRResourceLoader;
+
+class PHOENIX_EXPORT VRController : public TrackedDevice {
+ public:
+  enum ControllerSide {
+    RIGHT_CONTROLLER = vr::TrackedControllerRole_RightHand,
+    LEFT_CONTROLLER = vr::TrackedControllerRole_LeftHand,
+    INVALID_CONTROLLER = vr::TrackedControllerRole_Invalid
+  };
+
+  typedef vr::EVRButtonId ButtonId;
+
+  enum ButtonEvent {
+    BUTTON_PRESSED,
+    BUTTON_RELEASED,
+    BUTTON_TOUCH,
+    BUTTON_UNTOUCH
+  };
+
+  enum AxesId {
+    AXES_TRACKPAD = vr::k_eControllerAxis_TrackPad,
+    AXES_JOYSTICK = vr::k_eControllerAxis_Joystick,
+    AXES_TRIGGER = vr::k_eControllerAxis_Trigger
+  };
+
+  explicit VRController(ControllerSide side);
+
+  virtual ~VRController() = default;
+
+  void Update() override;
+  void OnOpenVREvent(const vr::VREvent_t& event) override;
+
+  void UpdateDeviceIndex() override;
+
+  ControllerSide GetSide() const;
+
+  vr::RenderModel_t* GetModel();
+
+  boost::signals2::connection RegisterButtonSignal(
+      const std::function<void(ButtonId, ButtonEvent)>& callback);
+
+  // x ranges from -1.0 to 1.0 for joysticks and track pads and from 0.0 to 1.0
+  // for triggers were 0 is fully released.
+  // y ranges from -1.0 to 1.0 for joysticks and track pads and is always 0.0
+  // for triggers.
+  glm::vec2 GetAxesValue(AxesId id);
+
+ private:
+  ControllerSide GetControllerRoleForTrackedDeviceIndex(
+      vr::TrackedDeviceIndex_t device_index) const;
+
+  boost::signals2::signal<void(ButtonId, ButtonEvent)> button_signal_;
+
+  ControllerSide side_;
+};
+
+}  // namespace phx
+
+#endif  // LIBRARY_PHX_INPUT_VR_CONTROLLER_HPP_
diff --git a/library/phx/rendering/auxiliary/splash_screen.hpp b/library/phx/rendering/auxiliary/splash_screen.hpp
index 2a9007e7b2a870d788a5492fef07de605364332a..56faa94f741e3296f50dc891a5fe0f7d92428bbd 100644
--- a/library/phx/rendering/auxiliary/splash_screen.hpp
+++ b/library/phx/rendering/auxiliary/splash_screen.hpp
@@ -38,7 +38,6 @@
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
 class PHOENIX_EXPORT SplashScreen : public System {
  public:
   SplashScreen() = delete;
@@ -65,7 +64,6 @@ class PHOENIX_EXPORT SplashScreen : public System {
   std::mutex load_progress_mutex_;
   float load_progress_ = 0.f;
 };
-SUPPRESS_WARNINGS_END
 
 }  // namespace phx
 
diff --git a/library/phx/rendering/backend/render_target.hpp b/library/phx/rendering/backend/render_target.hpp
index be07213d041ca9e41aec02c17b72d5e00f56090f..bed8eda040f06f9c5916be24de53b12962be7908 100644
--- a/library/phx/rendering/backend/render_target.hpp
+++ b/library/phx/rendering/backend/render_target.hpp
@@ -43,7 +43,6 @@ SUPPRESS_WARNINGS_END
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
 class PHOENIX_EXPORT RenderTarget : public Component, public gl::framebuffer {
  public:
   RenderTarget() = delete;
@@ -69,7 +68,6 @@ class PHOENIX_EXPORT RenderTarget : public Component, public gl::framebuffer {
 
   glm::uvec2 dimensions_;
 };
-SUPPRESS_WARNINGS_END
 
 }  // namespace phx
 
diff --git a/library/phx/rendering/backend/shader_program.hpp b/library/phx/rendering/backend/shader_program.hpp
index 93c6d7a56319bc436740a4e938fba132490a00ec..679130847e0cc4b611c486eb881fff57b752d819 100644
--- a/library/phx/rendering/backend/shader_program.hpp
+++ b/library/phx/rendering/backend/shader_program.hpp
@@ -37,19 +37,15 @@ SUPPRESS_WARNINGS_END
 #include "gl/program.hpp"
 #include "gl/shader.hpp"
 
+#include "phx/export.hpp"
 #include "phx/rendering/components/transform.hpp"
 #include "phx/rendering/render_passes/render_pass.hpp"
+#include "phx/resources/resource_pointer.hpp"
 #include "phx/resources/types/mesh.hpp"
 #include "phx/resources/types/shader_source.hpp"
-#include "phx/resources/resource_pointer.hpp"
-#include "phx/export.hpp"
 
 namespace phx {
 
-// TODO(@all) Will padding waste too much memory? How many shaders will we
-// have?
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class PHOENIX_EXPORT ShaderProgram : public gl::program {
  public:
   enum ShaderChannel {
@@ -71,7 +67,7 @@ class PHOENIX_EXPORT ShaderProgram : public gl::program {
   ShaderProgram& operator=(ShaderProgram&&) = default;
 
   bool SetShader(ShaderChannel channel,
-                      ResourcePointer<ShaderSource> shader_source);
+                 ResourcePointer<ShaderSource> shader_source);
 
   template <typename T>
   void SetUniform(const std::string& name, T value) {
@@ -91,8 +87,6 @@ class PHOENIX_EXPORT ShaderProgram : public gl::program {
   std::array<ShaderHandle, MAX_SHADER_CHANNEL> shaders_;
 };
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace phx
 
 #endif  // LIBRARY_PHX_RENDERING_BACKEND_SHADER_PROGRAM_HPP_
diff --git a/library/phx/rendering/components/light.hpp b/library/phx/rendering/components/light.hpp
index e8abc925810b1d63db905fad6a885e2843d2cb90..9c0403289ad1584c5ad8463b233cb6a001917679 100644
--- a/library/phx/rendering/components/light.hpp
+++ b/library/phx/rendering/components/light.hpp
@@ -36,8 +36,6 @@ SUPPRESS_WARNINGS_END
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class PHOENIX_EXPORT Light final : public Component {
  public:
   enum class Type {
@@ -80,8 +78,6 @@ class PHOENIX_EXPORT Light final : public Component {
   float spot_angle_ = 45.0f;  // Only for spot lights.
 };
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace phx
 
 #endif  // LIBRARY_PHX_RENDERING_COMPONENTS_LIGHT_HPP_
diff --git a/library/phx/rendering/components/mesh_handle.cpp b/library/phx/rendering/components/mesh_handle.cpp
index 14041b3414920d201f59526cee2f4cd310acb139..85fd32a7fcc2feea41f9f8f115e816a67c71fff3 100644
--- a/library/phx/rendering/components/mesh_handle.cpp
+++ b/library/phx/rendering/components/mesh_handle.cpp
@@ -32,10 +32,6 @@ void MeshHandle::SetMesh(ResourcePointer<Mesh> mesh) { mesh_ = mesh; }
 
 ResourcePointer<Mesh> MeshHandle::GetMesh() const { return mesh_; }
 
-void MeshHandle::SetWireframeMode(bool enabled) { wireframe_mode_ = enabled; }
-
-bool MeshHandle::GetWireframeMode() const { return wireframe_mode_; }
-
 std::string MeshHandle::ToString() const {
   if (mesh_ == nullptr) return GetName() + " (MeshHandle <empty>)";
 
diff --git a/library/phx/rendering/components/mesh_handle.hpp b/library/phx/rendering/components/mesh_handle.hpp
index 5bbf59c677ff2ea2d6d9fa9160b361d38e603e7d..9ad2de1e10c9dbfd2f82b9636795000f366c2181 100644
--- a/library/phx/rendering/components/mesh_handle.hpp
+++ b/library/phx/rendering/components/mesh_handle.hpp
@@ -25,10 +25,10 @@
 #include <string>
 
 #include "phx/core/component.hpp"
-#include "phx/resources/types/mesh.hpp"
+#include "phx/export.hpp"
 #include "phx/resources/resource_pointer.hpp"
+#include "phx/resources/types/mesh.hpp"
 #include "phx/utility/aspects/nameable.hpp"
-#include "phx/export.hpp"
 
 namespace phx {
 /**
@@ -36,14 +36,11 @@ namespace phx {
  */
 class PHOENIX_EXPORT MeshHandle final : public Component, public Nameable {
  public:
-  virtual ~MeshHandle() = default;
+  ~MeshHandle() override = default;
 
   void SetMesh(ResourcePointer<Mesh> mesh);
   ResourcePointer<Mesh> GetMesh() const;
 
-  void SetWireframeMode(bool enabled);
-  bool GetWireframeMode() const;
-
   std::string ToString() const override;
 
  protected:
@@ -57,7 +54,6 @@ class PHOENIX_EXPORT MeshHandle final : public Component, public Nameable {
 
  private:
   ResourcePointer<Mesh> mesh_{nullptr};
-  bool wireframe_mode_ = false;
 };
 }  // namespace phx
 
diff --git a/library/phx/rendering/components/mesh_render_settings.cpp b/library/phx/rendering/components/mesh_render_settings.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0a2907d581bad4d411c712ed357092391673441c
--- /dev/null
+++ b/library/phx/rendering/components/mesh_render_settings.cpp
@@ -0,0 +1,39 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "phx/rendering/components/mesh_render_settings.hpp"
+
+namespace phx {
+
+const MeshRenderSettings MeshRenderSettings::default_settings_;
+
+void MeshRenderSettings::SetWireframeMode(const bool enabled) {
+  wireframe_mode_ = enabled;
+}
+
+bool MeshRenderSettings::GetWireframeMode() const { return wireframe_mode_; }
+
+const MeshRenderSettings* MeshRenderSettings::GetDefault() {
+  return &default_settings_;
+}
+
+}  // namespace phx
diff --git a/library/phx/rendering/components/mesh_render_settings.hpp b/library/phx/rendering/components/mesh_render_settings.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..b35f1710e2ba330fad793266883a2603bae5d593
--- /dev/null
+++ b/library/phx/rendering/components/mesh_render_settings.hpp
@@ -0,0 +1,48 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+#ifndef LIBRARY_PHX_RENDERING_COMPONENTS_MESH_RENDER_SETTINGS_HPP_
+#define LIBRARY_PHX_RENDERING_COMPONENTS_MESH_RENDER_SETTINGS_HPP_
+
+#include "phx/core/component.hpp"
+#include "phx/export.hpp"
+
+namespace phx {
+/**
+ * A component holding a simple pointer to a mesh
+ */
+class PHOENIX_EXPORT MeshRenderSettings final : public Component {
+ public:
+  virtual ~MeshRenderSettings() = default;
+
+  void SetWireframeMode(bool enabled);
+  bool GetWireframeMode() const;
+
+  static const MeshRenderSettings* GetDefault();
+
+ private:
+  bool wireframe_mode_ = false;
+
+  static const MeshRenderSettings default_settings_;
+};
+}  // namespace phx
+
+#endif  // LIBRARY_PHX_RENDERING_COMPONENTS_MESH_RENDER_SETTINGS_HPP_
diff --git a/library/phx/rendering/components/transform.hpp b/library/phx/rendering/components/transform.hpp
index b67c14855ba21e89aeb98eb9f80fda9f625a0fc9..c9e4f0c30f96753ad51946118f3e3d0628d0407f 100644
--- a/library/phx/rendering/components/transform.hpp
+++ b/library/phx/rendering/components/transform.hpp
@@ -44,7 +44,7 @@ namespace phx {
 class PHOENIX_EXPORT Transform : public Component,
                                  public Hierarchical<Transform> {
  public:
-  virtual ~Transform() = default;
+  ~Transform() override = default;
 
   // Getting/Setting Local transform
   const glm::vec3& GetLocalTranslation() const;
diff --git a/library/phx/rendering/render_passes/geometry_pass.cpp b/library/phx/rendering/render_passes/geometry_pass.cpp
index ca4eef6be568b55fbbaa72b8cffc8070f04d4460..aeaf4a167e430320f97bdc6b11101f152b261998 100644
--- a/library/phx/rendering/render_passes/geometry_pass.cpp
+++ b/library/phx/rendering/render_passes/geometry_pass.cpp
@@ -35,9 +35,9 @@
 
 #include "phx/core/logger.hpp"
 #include "phx/rendering/components/transform.hpp"
+#include "phx/resources/resource_utils.hpp"
 #include "phx/resources/types/mesh.hpp"
 #include "phx/resources/types/shader_source.hpp"
-#include "phx/resources/resource_utils.hpp"
 
 namespace phx {
 
@@ -67,6 +67,10 @@ void GeometryPass::UploadMeshData(
   mesh_cache_.clear();
   RenderOffset offset{0, 0};
   for (const auto& instance : rendering_instances) {
+    if (instance.material != nullptr) {
+      instance.material->UploadTextures();
+    }
+
     Mesh* mesh = instance.mesh;
     if (mesh_cache_.find(mesh) != mesh_cache_.end()) {
       continue;
@@ -223,9 +227,15 @@ void GeometryPass::Draw(const RenderingInstance& rendering_instance) {
   SetTransformShaderUniforms(model_matrix, view_matrix, projection_matrix);
   SetMaterialShaderUniforms(rendering_instance.material);
 
+  const MeshRenderSettings* render_settings =
+      rendering_instance.mesh_render_settings;
+  if (render_settings == nullptr) {
+    render_settings = MeshRenderSettings::GetDefault();
+  }
+
   glEnable(GL_DEPTH_TEST);
   glPolygonMode(GL_FRONT_AND_BACK,
-                rendering_instance.wireframe_mode ? GL_LINE : GL_FILL);
+                render_settings->GetWireframeMode() ? GL_LINE : GL_FILL);
   glDrawElements(
       GL_TRIANGLES,
       static_cast<GLsizei>(rendering_instance.mesh->GetIndices().size()),
@@ -291,41 +301,32 @@ void GeometryPass::SetLightShaderUniforms() {
   }
 }
 
-void GeometryPass::SetMaterialShaderUniforms(Material* material) {
-  glm::uvec4 texture_toggle(0, 0, 0, 0);
-  glm::vec3 ambient_color(1, 0, 0);
-  glm::vec3 diffuse_color(1, 0, 0);
-  glm::vec3 specular_color(1, 0, 0);
-  float shininess = 1.0f;
-  if (material != nullptr) {
-    ambient_color = material->GetAmbientColor();
-    diffuse_color = material->GetDiffuseColor();
-    specular_color = material->GetSpecularColor();
-
-    texture_toggle =
-        glm::uvec4(material->GetAmbientTexture() != nullptr ? 1u : 0u,
-                   material->GetDiffuseTexture() != nullptr ? 1u : 0u,
-                   material->GetSpecularTexture() != nullptr ? 1u : 0u, 0u);
-    if (material->GetAmbientTexture())
-      shader_program_->set_uniform_handle(
-          shader_program_->uniform_location("material.ambient_tex"),
-          gl::texture_handle(*material->GetAmbientTexture()));
-    if (material->GetDiffuseTexture())
-      shader_program_->set_uniform_handle(
-          shader_program_->uniform_location("material.diffuse_tex"),
-          gl::texture_handle(*material->GetDiffuseTexture()));
-    if (material->GetSpecularTexture())
-      shader_program_->set_uniform_handle(
-          shader_program_->uniform_location("material.specular_tex"),
-          gl::texture_handle(*material->GetSpecularTexture()));
-
-    shininess = material->GetShininess();
-  }
+void GeometryPass::SetMaterialShaderUniforms(const Material* material) {
+  if (material == nullptr) material = Material::GetDefault();
+
+  const glm::uvec4 texture_toggle =
+      glm::uvec4(material->GetAmbientTexture() != nullptr ? 1u : 0u,
+                 material->GetDiffuseTexture() != nullptr ? 1u : 0u,
+                 material->GetSpecularTexture() != nullptr ? 1u : 0u, 0u);
+  if (material->GetAmbientTexture())
+    shader_program_->set_uniform_handle(
+        shader_program_->uniform_location("material.ambient_tex"),
+        gl::texture_handle(*material->GetAmbientTexture()));
+  if (material->GetDiffuseTexture())
+    shader_program_->set_uniform_handle(
+        shader_program_->uniform_location("material.diffuse_tex"),
+        gl::texture_handle(*material->GetDiffuseTexture()));
+  if (material->GetSpecularTexture())
+    shader_program_->set_uniform_handle(
+        shader_program_->uniform_location("material.specular_tex"),
+        gl::texture_handle(*material->GetSpecularTexture()));
+
   shader_program_->SetUniform("material.texture_toggle", texture_toggle);
-  shader_program_->SetUniform("material.ambient", ambient_color);
-  shader_program_->SetUniform("material.diffuse", diffuse_color);
-  shader_program_->SetUniform("material.specular", specular_color);
-  shader_program_->SetUniform("material.shininess", shininess);
+  shader_program_->SetUniform("material.ambient", material->GetAmbientColor());
+  shader_program_->SetUniform("material.diffuse", material->GetDiffuseColor());
+  shader_program_->SetUniform("material.specular",
+                              material->GetSpecularColor());
+  shader_program_->SetUniform("material.shininess", material->GetShininess());
 }
 
 bool GeometryPass::IsValid() const {
diff --git a/library/phx/rendering/render_passes/geometry_pass.hpp b/library/phx/rendering/render_passes/geometry_pass.hpp
index bd2edb0c40e650bf294feac2a7834babe3c53570..a02733159fc998a2b8547c5565932bbf118e1203 100644
--- a/library/phx/rendering/render_passes/geometry_pass.hpp
+++ b/library/phx/rendering/render_passes/geometry_pass.hpp
@@ -36,21 +36,20 @@ SUPPRESS_WARNINGS_BEGIN
 #include "gl/vertex_array.hpp"
 SUPPRESS_WARNINGS_END
 
+#include "phx/export.hpp"
 #include "phx/rendering/backend/render_target.hpp"
 #include "phx/rendering/backend/shader_program.hpp"
 #include "phx/rendering/components/light.hpp"
 #include "phx/rendering/components/material_handle.hpp"
+#include "phx/rendering/components/mesh_render_settings.hpp"
 #include "phx/rendering/components/projection.hpp"
 #include "phx/rendering/components/transform.hpp"
 #include "phx/rendering/render_passes/render_pass.hpp"
-#include "phx/resources/types/mesh.hpp"
 #include "phx/resources/resource_manager.hpp"
-#include "phx/export.hpp"
+#include "phx/resources/types/mesh.hpp"
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class PHOENIX_EXPORT GeometryPass : public RenderPass {
  public:
   explicit GeometryPass(RenderTarget* render_target);
@@ -64,7 +63,7 @@ class PHOENIX_EXPORT GeometryPass : public RenderPass {
     Mesh* mesh = nullptr;
     Material* material = nullptr;
     Transform* transform = nullptr;
-    bool wireframe_mode = false;
+    MeshRenderSettings* mesh_render_settings = nullptr;
   };
   struct RenderOffset {
     std::size_t vertex_offset;
@@ -87,8 +86,6 @@ class PHOENIX_EXPORT GeometryPass : public RenderPass {
   bool IsValid() const;
 
  private:
-  // TODO(@all) Will padding waste too much memory?
-  SUPPRESS_WARNINGS_BEGIN_PADDED
   struct RenderingResource {
     RenderingResource() = default;
     RenderingResource(const RenderingResource&) = delete;
@@ -107,7 +104,6 @@ class PHOENIX_EXPORT GeometryPass : public RenderPass {
     unsigned int vertex_buffer_size;
     unsigned int index_buffer_size;
   };
-  SUPPRESS_WARNINGS_END
 
   void SetUpShaders();
   void CreateRenderingResource();
@@ -123,7 +119,7 @@ class PHOENIX_EXPORT GeometryPass : public RenderPass {
                                   const glm::mat4& view_matrix,
                                   const glm::mat4& projection_matrix);
   void SetLightShaderUniforms();
-  void SetMaterialShaderUniforms(Material* material);
+  void SetMaterialShaderUniforms(const Material* material);
 
   std::unique_ptr<ShaderProgram> shader_program_;
 
@@ -136,8 +132,6 @@ class PHOENIX_EXPORT GeometryPass : public RenderPass {
   RenderTarget* render_target_;
 };
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace phx
 
 #endif  // LIBRARY_PHX_RENDERING_RENDER_PASSES_GEOMETRY_PASS_HPP_
diff --git a/library/phx/rendering/rendering_system.cpp b/library/phx/rendering/rendering_system.cpp
index bf4ea619bdfdc7660b2ddd95736d9c309a4061d8..78362871ef1b8b0e84f38fe4b3e414d0d0c86fe2 100644
--- a/library/phx/rendering/rendering_system.cpp
+++ b/library/phx/rendering/rendering_system.cpp
@@ -22,24 +22,20 @@
 
 #include "phx/rendering/rendering_system.hpp"
 
-#include <iostream>
 #include <memory>
 #include <string>
-#include <tuple>
 #include <utility>
 #include <vector>
 
 #include "phx/core/engine.hpp"
 #include "phx/core/logger.hpp"
-#include "phx/core/runtime_component.hpp"
 #include "phx/core/scene.hpp"
 #include "phx/core/system.hpp"
 #include "phx/rendering/components/light.hpp"
 #include "phx/rendering/components/material_handle.hpp"
 #include "phx/rendering/components/mesh_handle.hpp"
-#include "phx/rendering/components/projection.hpp"
+#include "phx/rendering/components/mesh_render_settings.hpp"
 #include "phx/rendering/components/transform.hpp"
-#include "phx/resources/types/mesh.hpp"
 
 #include "gl/opengl.hpp"
 
@@ -79,14 +75,15 @@ void RenderingSystem::Update(const FrameTimer::TimeInfo&) {
     auto light = entity->GetFirstComponent<Light>();
     auto transform = entity->GetFirstComponent<Transform>();
     auto material_handle = entity->GetFirstComponent<MaterialHandle>();
+    Material* material = nullptr;
+    if (material_handle != nullptr)
+      material = material_handle->GetMaterial().Get();
+    auto mesh_render_settings = entity->GetFirstComponent<MeshRenderSettings>();
+
     if (transform != nullptr) {
       if (mesh_handle != nullptr) {
-        Material* material = nullptr;
-        if (material_handle != nullptr)
-          material = material_handle->GetMaterial().Get();
         rendering_instances.push_back({mesh_handle->GetMesh().Get(), material,
-                                       transform,
-                                       mesh_handle->GetWireframeMode()});
+                                       transform, mesh_render_settings});
       } else if (light != nullptr) {
         light_transform_pairs.push_back(
             std::pair<Light*, Transform*>(light, transform));
diff --git a/library/phx/rendering/rendering_system.hpp b/library/phx/rendering/rendering_system.hpp
index 6d56ee71d065e304d9482dc023b099d30a87a77a..e0fad0bd36fc21c77b715afca7502e6ad2f093c8 100644
--- a/library/phx/rendering/rendering_system.hpp
+++ b/library/phx/rendering/rendering_system.hpp
@@ -32,10 +32,10 @@
 #include "phx/core/scene.hpp"
 #include "phx/core/system.hpp"
 #include "phx/display/display_system.hpp"
+#include "phx/export.hpp"
 #include "phx/rendering/backend/render_target.hpp"
-#include "phx/rendering/render_passes/geometry_pass.hpp"
 #include "phx/rendering/frame_graph.hpp"
-#include "phx/export.hpp"
+#include "phx/rendering/render_passes/geometry_pass.hpp"
 
 namespace phx {
 
@@ -44,7 +44,7 @@ class PHOENIX_EXPORT RenderingSystem : public System {
   RenderingSystem() = delete;
   RenderingSystem(const RenderingSystem&) = delete;
   RenderingSystem(RenderingSystem&&) = default;
-  virtual ~RenderingSystem() = default;
+  ~RenderingSystem() override = default;
 
   void Update(const FrameTimer::TimeInfo& time_info) override;
 
diff --git a/library/phx/resources/loaders/assimp_model_loader.hpp b/library/phx/resources/loaders/assimp_model_loader.hpp
index 9f5abd2073008c220b8b1aea02d50a0cc2b3b5b6..5b7777567c1c0a907194c4866ae77979b001134f 100644
--- a/library/phx/resources/loaders/assimp_model_loader.hpp
+++ b/library/phx/resources/loaders/assimp_model_loader.hpp
@@ -39,16 +39,15 @@ SUPPRESS_WARNINGS_BEGIN
 SUPPRESS_WARNINGS_END
 
 #include "phx/export.hpp"
-#include "phx/resources/types/material.hpp"
-#include "phx/resources/types/mesh.hpp"
-#include "phx/resources/types/model.hpp"
 #include "phx/resources/resource_declaration.hpp"
 #include "phx/resources/resource_load_strategy.hpp"
 #include "phx/resources/resource_pointer.hpp"
+#include "phx/resources/types/material.hpp"
+#include "phx/resources/types/mesh.hpp"
+#include "phx/resources/types/model.hpp"
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
 class PHOENIX_EXPORT AssimpModelLoader final : public ResourceLoadStrategy {
  public:
   AssimpModelLoader();
@@ -114,7 +113,6 @@ class PHOENIX_EXPORT AssimpModelLoader final : public ResourceLoadStrategy {
   int last_material_index_ = kInvalidMaterialIndex;
   std::function<void(float)> on_progress_update_callback_;
 };
-SUPPRESS_WARNINGS_END
 
 template <typename FileSourceType>
 std::vector<glm::vec3> phx::AssimpModelLoader::LoadVectorData(
diff --git a/library/phx/resources/loaders/generic_material_loader.cpp b/library/phx/resources/loaders/generic_material_loader.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..425dedc7d4253d45cffa63f30e48f14a7382a7db
--- /dev/null
+++ b/library/phx/resources/loaders/generic_material_loader.cpp
@@ -0,0 +1,51 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "phx/resources/loaders/generic_material_loader.hpp"
+
+#include <memory>
+#include <vector>
+
+#include "phx/resources/types/material.hpp"
+
+namespace phx {
+std::unique_ptr<Resource> GenericMaterialLoader::Load(
+    const ResourceDeclaration& declaration) {
+  auto resource = std::make_unique<phx::Material>();
+
+  resource->SetName(declaration["material_name"]);
+
+  std::vector<float> diffuseColor = declaration["diffuse_color"];
+  resource->SetDiffuseColor(
+      glm::vec3(diffuseColor[0], diffuseColor[1], diffuseColor[2]));
+  std::vector<float> specularColor = declaration["specular_color"];
+  resource->SetSpecularColor(
+      glm::vec3(specularColor[0], specularColor[1], specularColor[2]));
+  std::vector<float> ambientColor = declaration["ambient_color"];
+  resource->SetAmbientColor(
+      glm::vec3(ambientColor[0], ambientColor[1], ambientColor[2]));
+  float shininess = declaration["shininess"];
+  resource->SetShininess(shininess);
+
+  return resource;
+}
+}  // namespace phx
diff --git a/tests/test_utilities/dummy_material_generator.hpp b/library/phx/resources/loaders/generic_material_loader.hpp
similarity index 55%
rename from tests/test_utilities/dummy_material_generator.hpp
rename to library/phx/resources/loaders/generic_material_loader.hpp
index 746df1f1d199b3887f8f26a600eeb20dfa6b71ab..408f868ea43769429985fd10e136c8a3ec809446 100644
--- a/tests/test_utilities/dummy_material_generator.hpp
+++ b/library/phx/resources/loaders/generic_material_loader.hpp
@@ -20,43 +20,27 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#ifndef TESTS_TEST_UTILITIES_DUMMY_MATERIAL_GENERATOR_HPP_
-#define TESTS_TEST_UTILITIES_DUMMY_MATERIAL_GENERATOR_HPP_
+#ifndef LIBRARY_PHX_RESOURCES_LOADERS_GENERIC_MATERIAL_LOADER_HPP_
+#define LIBRARY_PHX_RESOURCES_LOADERS_GENERIC_MATERIAL_LOADER_HPP_
 
 #include <memory>
-#include <utility>
-#include <vector>
-
-#include "phx/suppress_warnings.hpp"
-
-SUPPRESS_WARNINGS_BEGIN
-#include "glm/vec3.hpp"
-SUPPRESS_WARNINGS_END
 
 #include "phx/resources/resource_load_strategy.hpp"
 
 namespace phx {
-class Material;
-
-class DummyMaterialGenerator : public ResourceLoadStrategy {
+class GenericMaterialLoader final : public ResourceLoadStrategy {
  public:
-  DummyMaterialGenerator() = delete;
-  DummyMaterialGenerator(glm::vec3 diffuse_color, glm::vec3 specular_color,
-                         glm::vec3 ambient_color, float shininess);
-  DummyMaterialGenerator(const DummyMaterialGenerator &) = default;
-  DummyMaterialGenerator(DummyMaterialGenerator &&) = default;
-  ~DummyMaterialGenerator() = default;
+  GenericMaterialLoader() = default;
+  GenericMaterialLoader(const GenericMaterialLoader &) = delete;
+  GenericMaterialLoader(GenericMaterialLoader &&) = delete;
+  ~GenericMaterialLoader() = default;
 
-  DummyMaterialGenerator &operator=(const DummyMaterialGenerator &) = default;
-  DummyMaterialGenerator &operator=(DummyMaterialGenerator &&) = default;
+  GenericMaterialLoader &operator=(const GenericMaterialLoader &) = delete;
+  GenericMaterialLoader &operator=(GenericMaterialLoader &&) = delete;
 
   std::unique_ptr<Resource> Load(
       const ResourceDeclaration &declaration) override;
-
- protected:
- private:
-  std::unique_ptr<phx::Material> material_;
 };
 }  // namespace phx
 
-#endif  // TESTS_TEST_UTILITIES_DUMMY_MATERIAL_GENERATOR_HPP_
+#endif  // LIBRARY_PHX_RESOURCES_LOADERS_GENERIC_MATERIAL_LOADER_HPP_
diff --git a/library/phx/resources/loaders/image_loader.hpp b/library/phx/resources/loaders/image_loader.hpp
index aaebda26146ff3e81c26ee33369a6dfe93e99961..9e0e61fb4f42d357e1689460a12100069acf2a4b 100644
--- a/library/phx/resources/loaders/image_loader.hpp
+++ b/library/phx/resources/loaders/image_loader.hpp
@@ -35,7 +35,7 @@ class ImageLoader final : public ResourceLoadStrategy {
   ImageLoader() = default;
   ImageLoader(const ImageLoader &) = delete;
   ImageLoader(ImageLoader &&) = delete;
-  ~ImageLoader() = default;
+  ~ImageLoader() override = default;
 
   ImageLoader &operator=(const ImageLoader &) = delete;
   ImageLoader &operator=(ImageLoader &&) = delete;
diff --git a/library/phx/resources/loaders/openvr_resource_loader.cpp b/library/phx/resources/loaders/openvr_resource_loader.cpp
index 3c24d99ef7846cdd8f5e5e6e9005e0bbf055c9e5..230337716f6077f804325f84ba4bc459cb6d415c 100644
--- a/library/phx/resources/loaders/openvr_resource_loader.cpp
+++ b/library/phx/resources/loaders/openvr_resource_loader.cpp
@@ -22,18 +22,25 @@
 
 #include "phx/resources/loaders/openvr_resource_loader.hpp"
 
+#include <algorithm>
 #include <memory>
 #include <string>
+#include <utility>
+#include <vector>
 
 #include "phx/core/logger.hpp"
+#include "phx/input/device_system.hpp"
+#include "phx/input/vr_controller.hpp"
+#include "phx/resources/resource_manager.hpp"
 #include "phx/resources/types/material.hpp"
 
 namespace phx {
 
-OpenVRResourceLoader::OpenVRResourceLoader(HMD *hmd) : hmd_(hmd) {}
+OpenVRResourceLoader::OpenVRResourceLoader(DeviceSystem* device_system)
+    : device_system_(device_system) {}
 
 std::unique_ptr<phx::Resource> OpenVRResourceLoader::Load(
-    const ResourceDeclaration &declaration) {
+    const ResourceDeclaration& declaration) {
   if (declaration.find("OpenVR_type") == declaration.end() ||
       !declaration["OpenVR_type"].is_string()) {
     warn(
@@ -43,15 +50,15 @@ std::unique_ptr<phx::Resource> OpenVRResourceLoader::Load(
     return nullptr;
   }
   std::string type = declaration["OpenVR_type"];
-  HMD::Controller controller_side = HMD::Controller::LEFT_CONTROLLER;
+  VRController::ControllerSide controller_side = VRController::LEFT_CONTROLLER;
   if (declaration.find("side") != declaration.end() &&
       declaration["side"] == "right") {
-    controller_side = HMD::Controller::RIGHT_CONTROLLER;
+    controller_side = VRController::RIGHT_CONTROLLER;
   }
   // otherwise default left
 
   if (type == "material") {
-    return hmd_->GetControllerMaterial(controller_side);
+    return GetMaterial(controller_side);
   }
   if (type == "texture") {
     int texture_id = 0;
@@ -64,12 +71,11 @@ std::unique_ptr<phx::Resource> OpenVRResourceLoader::Load(
     } else {
       texture_id = declaration["texture_id"];
     }
-    return hmd_->GetControllerTexture(texture_id);
+    return GetTexture(texture_id);
   }
   if (type == "mesh") {
-    return hmd_->GetControllerMesh(controller_side);
+    return GetMesh(controller_side);
   }
-
   warn(
       "OpenVRResource with OpenVR_type {}, cannot be loaded. Full declaration: "
       "{}",
@@ -77,4 +83,92 @@ std::unique_ptr<phx::Resource> OpenVRResourceLoader::Load(
   return nullptr;
 }
 
+vr::RenderModel_t* OpenVRResourceLoader::GetModel(
+    VRController::ControllerSide side) {
+  for (auto controller : device_system_->GetDevices<VRController>()) {
+    if (controller->GetSide() == side) return controller->GetModel();
+  }
+
+  warn(
+      "[OpenVRResourceLoader::GetModel] unable to find controller with side {}",
+      side == VRController::RIGHT_CONTROLLER ? "right" : "left");
+  return nullptr;
+}
+
+std::unique_ptr<phx::Mesh> OpenVRResourceLoader::GetMesh(
+    VRController::ControllerSide side) {
+  auto model = GetModel(side);
+  if (model == nullptr) {
+    return nullptr;
+  }
+  auto mesh = std::make_unique<phx::Mesh>();
+  std::vector<glm::vec3> vertices;
+  std::vector<glm::vec3> normals;
+  std::vector<glm::vec2> texcoords;
+  for (std::size_t i = 0; i < model->unVertexCount; i++) {
+    vertices.push_back(glm::vec3(model->rVertexData[i].vPosition.v[0],
+                                 model->rVertexData[i].vPosition.v[1],
+                                 model->rVertexData[i].vPosition.v[2]));
+    normals.push_back(glm::vec3(model->rVertexData[i].vNormal.v[0],
+                                model->rVertexData[i].vNormal.v[1],
+                                model->rVertexData[i].vNormal.v[2]));
+    texcoords.push_back(glm::vec2(model->rVertexData[i].rfTextureCoord[0],
+                                  model->rVertexData[i].rfTextureCoord[1]));
+  }
+  std::vector<unsigned int> indices;
+  for (std::size_t i = 0; i < model->unTriangleCount * 3; i++) {
+    indices.push_back(model->rIndexData[i]);
+  }
+  mesh->SetVertices(std::move(vertices));
+  mesh->SetNormals(std::move(normals));
+  mesh->SetTextureCoords(std::move(texcoords));
+  mesh->SetIndices(std::move(indices));
+  return mesh;
+}
+
+std::unique_ptr<Material> OpenVRResourceLoader::GetMaterial(
+    VRController::ControllerSide side) {
+  auto model = GetModel(side);
+  if (model == nullptr) return nullptr;
+
+  auto material = std::make_unique<phx::Material>();
+  material->SetAmbientColor(glm::vec3(0.1, 0.1, 0.1));
+  material->SetSpecularColor(glm::vec3(0.3, 0.3, 0.3));
+
+  auto texture = ResourceManager::instance().DeclareResource<Image>(
+      {{"TYPE", "openVR"},
+       {"OpenVR_type", "texture"},
+       {"texture_id", model->diffuseTextureId},
+       {"side", side == VRController::LEFT_CONTROLLER ? "left" : "right"}});
+  texture.Load();
+  material->SetDiffuseImage(texture);
+
+  return material;
+}
+
+std::unique_ptr<Image> OpenVRResourceLoader::GetTexture(int id) {
+  vr::RenderModel_TextureMap_t* texture_map;
+  while (vr::VRRenderModels()->LoadTexture_Async(id, &texture_map) ==
+         vr::VRRenderModelError_Loading) {
+    std::this_thread::sleep_for(std::chrono::milliseconds(50));
+  }
+  if (texture_map == nullptr) {
+    return nullptr;
+  }
+
+  std::vector<unsigned char> image_data(texture_map->unWidth *
+                                        texture_map->unHeight * 4);
+  std::copy(texture_map->rubTextureMapData,
+            texture_map->rubTextureMapData + image_data.size(),
+            image_data.begin());
+  auto image = std::make_unique<phx::Image>(
+      &image_data[0],
+      std::array<std::size_t, 2>{
+          {static_cast<std::size_t>(texture_map->unWidth),
+           static_cast<std::size_t>(texture_map->unHeight)}},
+      32);
+
+  return image;
+}
+
 }  // namespace phx
diff --git a/library/phx/resources/loaders/openvr_resource_loader.hpp b/library/phx/resources/loaders/openvr_resource_loader.hpp
index 357ff8ad9489e2ac269f962b8a48979d884c26d9..3ccd32ea744e23e21de87a83617d63d739bec047 100644
--- a/library/phx/resources/loaders/openvr_resource_loader.hpp
+++ b/library/phx/resources/loaders/openvr_resource_loader.hpp
@@ -33,17 +33,18 @@ SUPPRESS_WARNINGS_BEGIN
 SUPPRESS_WARNINGS_END
 
 #include "phx/export.hpp"
-#include "phx/display/hmd.hpp"
-#include "phx/resources/types/mesh.hpp"
+#include "phx/input/device_system.hpp"
+#include "phx/input/vr_controller.hpp"
 #include "phx/resources/resource_declaration.hpp"
 #include "phx/resources/resource_load_strategy.hpp"
+#include "phx/resources/types/mesh.hpp"
 
 namespace phx {
 class Mesh;
 
 class PHOENIX_EXPORT OpenVRResourceLoader final : public ResourceLoadStrategy {
  public:
-  explicit OpenVRResourceLoader(HMD *hmd);
+  explicit OpenVRResourceLoader(DeviceSystem *device_system);
   OpenVRResourceLoader(const OpenVRResourceLoader &) = delete;
   OpenVRResourceLoader(OpenVRResourceLoader &&) = delete;
   ~OpenVRResourceLoader() override = default;
@@ -53,8 +54,12 @@ class PHOENIX_EXPORT OpenVRResourceLoader final : public ResourceLoadStrategy {
 
   std::unique_ptr<Resource> Load(const ResourceDeclaration &file_name) override;
 
- private:
-  HMD *hmd_;
+  vr::RenderModel_t *GetModel(VRController::ControllerSide side);
+  std::unique_ptr<Mesh> GetMesh(VRController::ControllerSide side);
+  std::unique_ptr<Material> GetMaterial(VRController::ControllerSide side);
+  std::unique_ptr<Image> GetTexture(int id);
+
+  DeviceSystem *device_system_ = nullptr;
 };
 
 }  // namespace phx
diff --git a/library/phx/resources/loaders/shader_loader.hpp b/library/phx/resources/loaders/shader_loader.hpp
index a23444fa3d7df4e823a3a31cd8fe9341c8ef8c96..3f2a816001083ab8ddd73849bd48183641fc608c 100644
--- a/library/phx/resources/loaders/shader_loader.hpp
+++ b/library/phx/resources/loaders/shader_loader.hpp
@@ -35,7 +35,7 @@ class ShaderLoader final : public ResourceLoadStrategy {
   ShaderLoader() = default;
   ShaderLoader(const ShaderLoader&) = delete;
   ShaderLoader(ShaderLoader&&) = delete;
-  ~ShaderLoader() = default;
+  ~ShaderLoader() override = default;
 
   ShaderLoader& operator=(const ShaderLoader&) = delete;
   ShaderLoader& operator=(ShaderLoader&&) = delete;
diff --git a/library/phx/resources/resource_manager.cpp b/library/phx/resources/resource_manager.cpp
index 938b6dd7f128ea37b08cc1566d7ea94697f9bc35..34702a628db713a454f71cef47de4e4339b0e058 100644
--- a/library/phx/resources/resource_manager.cpp
+++ b/library/phx/resources/resource_manager.cpp
@@ -27,6 +27,7 @@
 #include <utility>
 
 #include "phx/resources/loaders/assimp_model_loader.hpp"
+#include "phx/resources/loaders/generic_material_loader.hpp"
 #include "phx/resources/loaders/image_loader.hpp"
 #include "phx/resources/loaders/shader_loader.hpp"
 
@@ -37,6 +38,7 @@ ResourceManager::ResourceManager() {
   this->RegisterMeshResourceExtensions();
   this->RegisterShaderResourceExtensions();
   this->RegisterImageResourceExtensions();
+  this->RegisterResourceGenerators();
 }
 
 void ResourceManager::RegisterResourceType(
@@ -91,4 +93,9 @@ void ResourceManager::RegisterImageResourceExtensions() {
   this->RegisterResourceType(".png", std::make_unique<ImageLoader>());
 }
 
+void ResourceManager::RegisterResourceGenerators() {
+  this->RegisterResourceType("GEN_MATERIAL",
+                             std::make_unique<GenericMaterialLoader>());
+}
+
 }  // namespace phx
diff --git a/library/phx/resources/resource_manager.hpp b/library/phx/resources/resource_manager.hpp
index 54cf258ca1a0b8cc9eb1c0c6ded2134152216a6f..a701b0673af3d49084b99ac3f27b6c6674ed61b6 100644
--- a/library/phx/resources/resource_manager.hpp
+++ b/library/phx/resources/resource_manager.hpp
@@ -28,12 +28,12 @@
 #include <string>
 
 #include "phx/core/logger.hpp"
+#include "phx/export.hpp"
 #include "phx/resources/resource_declaration.hpp"
 #include "phx/resources/resource_load_strategy.hpp"
 #include "phx/resources/resource_pointer.hpp"
 #include "phx/resources/resource_proxy.hpp"
 #include "phx/utility/aspects/singleton.hpp"
-#include "phx/export.hpp"
 
 namespace phx {
 /**
@@ -73,6 +73,8 @@ class PHOENIX_EXPORT ResourceManager final : public singleton<ResourceManager> {
   void RegisterMeshResourceExtensions();
   void RegisterImageResourceExtensions();
 
+  void RegisterResourceGenerators();
+
   std::map<std::string, std::unique_ptr<ResourceLoadStrategy>> loaders_by_type_;
   std::map<std::size_t, std::unique_ptr<ResourceProxy>> resources_;
 };
diff --git a/library/phx/resources/resource_utils.cpp b/library/phx/resources/resource_utils.cpp
index e8e82fcb5356defa3988ae2696281f75a7054cc9..f79aefd817b2b90614cd941e4d88dbbb7ffb6351 100644
--- a/library/phx/resources/resource_utils.cpp
+++ b/library/phx/resources/resource_utils.cpp
@@ -22,13 +22,57 @@
 #include "phx/resources/resource_utils.hpp"
 
 #include <algorithm>
+#include <cassert>
+#include <fstream>
 #include <locale>
 #include <string>
+#include <vector>
+
+#include "boost/filesystem.hpp"
 
 #include "phx/resources/resource_manager.hpp"
 #include "phx/resources_path.hpp"
 
 namespace phx {
+namespace {
+std::vector<std::string> default_resource_search_paths = {
+    {std::string("./"), resources_root}};
+}
+
+std::vector<std::string> ResourceUtils::resource_search_paths_{
+    default_resource_search_paths};
+
+ResourceDeclaration ResourceUtils::GenericMaterialDeclaration(
+    const std::string& material_name, glm::vec3 diffuse_color,
+    glm::vec3 specular_color, glm::vec3 ambient_color, float shininess) {
+  ResourceDeclaration declaration = {{"TYPE", "GEN_MATERIAL"}};
+  declaration["material_name"] = material_name;
+
+  declaration["diffuse_color"] = {diffuse_color[0], diffuse_color[1],
+                                  diffuse_color[2]};
+  declaration["specular_color"] = {specular_color[0], specular_color[1],
+                                   specular_color[2]};
+  declaration["ambient_color"] = {ambient_color[0], ambient_color[1],
+                                  ambient_color[2]};
+  declaration["shininess"] = shininess;
+  return declaration;
+}
+
+void ResourceUtils::AddResourceSearchPath(const std::string& path_to_add) {
+  assert(!path_to_add.empty());
+  auto p = (path_to_add.back() == '/' ? path_to_add
+                                      : path_to_add + std::string("/"));
+  resource_search_paths_.push_back(p);
+}
+
+void ResourceUtils::ResetResourceSearchPath() {
+  resource_search_paths_ = default_resource_search_paths;
+}
+
+std::vector<std::string> ResourceUtils::GetResourceSearchPath() {
+  return resource_search_paths_;
+}
+
 ResourceDeclaration ResourceUtils::DeclarationFromFile(
     const std::string& file_name, nlohmann::json additional_info /*= {}*/,
     bool absolute_path /*= false*/) {
@@ -36,7 +80,7 @@ ResourceDeclaration ResourceUtils::DeclarationFromFile(
   if (absolute_path) {
     declaration["file_name"] = file_name;
   } else {
-    declaration["file_name"] = resources_root + file_name;
+    declaration["file_name"] = FindFileInSearchPath(file_name);
   }
   for (nlohmann::json::iterator it = additional_info.begin();
        it != additional_info.end(); ++it) {
@@ -44,6 +88,7 @@ ResourceDeclaration ResourceUtils::DeclarationFromFile(
   }
   return declaration;
 }
+
 std::string ResourceUtils::ExtractFileExtension(const std::string& file_name) {
   std::string extension = file_name.substr(file_name.rfind('.'));
   std::transform(extension.begin(), extension.end(), extension.begin(),
@@ -52,4 +97,24 @@ std::string ResourceUtils::ExtractFileExtension(const std::string& file_name) {
   return extension;
 }
 
+ResourcePointer<Material> ResourceUtils::LoadGenericMaterial(
+    const std::string& material_name, glm::vec3 diffuse_color,
+    glm::vec3 specular_color /*= Material::GetDefault()->GetSpecularColor()*/,
+    glm::vec3 ambient_color /*= Material::GetDefault()->GetAmbientColor()*/,
+    float shininess /*= Material::GetDefault()->GetShininess()*/) {
+  auto res_ptr = phx::ResourceManager::instance().DeclareResource<Material>(
+      GenericMaterialDeclaration(material_name, diffuse_color, specular_color,
+                                 ambient_color, shininess));
+  res_ptr.Load();
+  return res_ptr;
+}
+
+std::string ResourceUtils::FindFileInSearchPath(const std::string& file_name) {
+  for (auto& entry : resource_search_paths_) {
+    auto full_name = entry + file_name;
+    if (boost::filesystem::exists(full_name.c_str())) return full_name;
+  }
+  return "";
+}
+
 }  // namespace phx
diff --git a/library/phx/resources/resource_utils.hpp b/library/phx/resources/resource_utils.hpp
index 8f18bc1fa3c17ae0db1dc93a83ed4aebab8d8236..06d925854fe6c76ac45f36469e476a742b5510c8 100644
--- a/library/phx/resources/resource_utils.hpp
+++ b/library/phx/resources/resource_utils.hpp
@@ -26,29 +26,50 @@
 #include <map>
 #include <memory>
 #include <string>
+#include <vector>
 
 #include "json.hpp"
 
 #include "phx/core/logger.hpp"
+#include "phx/export.hpp"
 #include "phx/resources/resource_declaration.hpp"
 #include "phx/resources/resource_load_strategy.hpp"
 #include "phx/resources/resource_manager.hpp"
 #include "phx/resources/resource_pointer.hpp"
+#include "phx/resources/types/material.hpp"
 #include "phx/utility/aspects/singleton.hpp"
-#include "phx/export.hpp"
 
 namespace phx {
 /**
  * The ResourceUtils class contains static convenience methods to simplify
- * interactions with the resource system. It should never hold any state.
+ * interactions with the resource system. It also holds a user configurable
+ * resource search path. When operating on a relative file name, it will
+ * search all entries in the search path and return/load the first file that
+ * matches the given file name. Per default, the resource search path
+ * contains the local directory and phx::resources_root.
  */
 class PHOENIX_EXPORT ResourceUtils final {
  public:
+  static ResourceDeclaration GenericMaterialDeclaration(
+      const std::string& material_name, glm::vec3 diffuse_color,
+      glm::vec3 specular_color, glm::vec3 ambient_color, float shininess);
+
+  static void AddResourceSearchPath(const std::string& path_to_add);
+  static void ResetResourceSearchPath();
+  static std::vector<std::string> GetResourceSearchPath();
+
   static std::string ExtractFileExtension(const std::string& file_name);
+
   static ResourceDeclaration DeclarationFromFile(
       const std::string& file_name, nlohmann::json additional_info = {},
       bool absolute_path = false);
 
+  static ResourcePointer<Material> LoadGenericMaterial(
+      const std::string& material_name, glm::vec3 diffuse_color,
+      glm::vec3 specular_color = Material::GetDefault()->GetSpecularColor(),
+      glm::vec3 ambient_color = Material::GetDefault()->GetAmbientColor(),
+      float shininess = Material::GetDefault()->GetShininess());
+
   template <class ResourceType>
   static ResourcePointer<ResourceType> LoadResourceFromFile(
       const std::string& file_name, nlohmann::json additional_info = {},
@@ -59,6 +80,10 @@ class PHOENIX_EXPORT ResourceUtils final {
     res_ptr.Load();
     return res_ptr;
   }
+
+ private:
+  static std::string FindFileInSearchPath(const std::string& file_name);
+  static std::vector<std::string> resource_search_paths_;
 };
 
 }  // namespace phx
diff --git a/library/phx/resources/types/image.hpp b/library/phx/resources/types/image.hpp
index a5497948d3270f868eee852939ae1a27acdfe367..8638e7bb8f9522751fa44555848248fd05ce3cbd 100644
--- a/library/phx/resources/types/image.hpp
+++ b/library/phx/resources/types/image.hpp
@@ -81,7 +81,7 @@ class PHOENIX_EXPORT Image : public Resource, public Loggable {
                  const std::int32_t native_flags = 0);
   Image(const Image& that);
   Image(Image&& temp) noexcept;
-  virtual ~Image();
+  ~Image() override;
   Image& operator=(const Image& that);
   Image& operator=(Image&& temp) noexcept;
 
diff --git a/library/phx/resources/types/material.cpp b/library/phx/resources/types/material.cpp
index f79e5d332942b63f933ddc00235cb201fe4e8d06..49bd551988f68eedfbee0d585a378d54e50c785a 100644
--- a/library/phx/resources/types/material.cpp
+++ b/library/phx/resources/types/material.cpp
@@ -32,6 +32,7 @@
 namespace phx {
 
 const char Material::UNNAMED[] = "UnnamedMaterial";
+const Material Material::default_material_;
 
 glm::vec3 Material::GetDiffuseColor() const { return diffuse_color_; }
 void Material::SetDiffuseColor(glm::vec3 color) { diffuse_color_ = color; }
@@ -41,11 +42,10 @@ ResourcePointer<Image> Material::GetDiffuseImage() const {
 }
 void Material::SetDiffuseImage(ResourcePointer<Image> image) {
   diffuse_image_ = image;
+  ResetTexture(&diffuse_texture_);
 }
 
-gl::texture_2d* Material::GetDiffuseTexture() {
-  if (diffuse_image_ && !diffuse_texture_)
-    SetTexture(diffuse_image_, &diffuse_texture_);
+gl::texture_2d* Material::GetDiffuseTexture() const {
   return diffuse_texture_.get();
 }
 
@@ -57,11 +57,10 @@ ResourcePointer<Image> Material::GetAmbientImage() const {
 }
 void Material::SetAmbientImage(ResourcePointer<Image> image) {
   ambient_image_ = image;
+  ResetTexture(&ambient_texture_);
 }
 
-gl::texture_2d* Material::GetAmbientTexture() {
-  if (ambient_image_ && !ambient_texture_)
-    SetTexture(ambient_image_, &ambient_texture_);
+gl::texture_2d* Material::GetAmbientTexture() const {
   return ambient_texture_.get();
 }
 
@@ -73,11 +72,10 @@ ResourcePointer<Image> Material::GetSpecularImage() const {
 }
 void Material::SetSpecularImage(ResourcePointer<Image> image) {
   specular_image_ = image;
+  ResetTexture(&specular_texture_);
 }
 
-gl::texture_2d* Material::GetSpecularTexture() {
-  if (specular_image_ && !specular_texture_)
-    SetTexture(specular_image_, &specular_texture_);
+gl::texture_2d* Material::GetSpecularTexture() const {
   return specular_texture_.get();
 }
 
@@ -93,12 +91,25 @@ void Material::SetShininess(float shininess) {
   }
 }
 
+const Material* Material::GetDefault() { return &default_material_; }
+
+void Material::UploadTextures() {
+  if (!diffuse_texture_) {
+    SetTexture(diffuse_image_, &diffuse_texture_);
+  }
+  if (!specular_texture_) {
+    SetTexture(specular_image_, &specular_texture_);
+  }
+  if (!ambient_texture_) {
+    SetTexture(ambient_image_, &ambient_texture_);
+  }
+}
+
 void Material::SetTexture(ResourcePointer<Image> image,
                           std::shared_ptr<gl::texture_2d>* texture) {
   if (image == nullptr) return;
-  if (*texture && (*texture)->is_valid()) {
-    gl::texture_handle handle(*texture->get());
-    handle.set_resident(false);
+  if (*texture) {
+    ResetTexture(texture);
   }
 
   auto dimensions = image->GetDimensions();
@@ -123,4 +134,12 @@ void Material::SetTexture(ResourcePointer<Image> image,
   gl::print_error("[Material::SetTexture] OpenGl Error code");
 }
 
+void Material::ResetTexture(std::shared_ptr<gl::texture_2d>* texture) {
+  if (*texture && (*texture)->is_valid()) {
+    gl::texture_handle handle(*texture->get());
+    handle.set_resident(false);
+  }
+  texture->reset();
+}
+
 }  // namespace phx
diff --git a/library/phx/resources/types/material.hpp b/library/phx/resources/types/material.hpp
index 557dbfc01397270ac47f926fec0be7a2d4f663ed..fc839341bbf95af5e3ec719aeaaef0caf15a56b6 100644
--- a/library/phx/resources/types/material.hpp
+++ b/library/phx/resources/types/material.hpp
@@ -35,11 +35,11 @@ SUPPRESS_WARNINGS_BEGIN
 #include "glm/vec3.hpp"
 SUPPRESS_WARNINGS_END
 
+#include "phx/export.hpp"
 #include "phx/resources/resource.hpp"
 #include "phx/resources/resource_pointer.hpp"
 #include "phx/resources/types/image.hpp"
 #include "phx/utility/aspects/nameable.hpp"
-#include "phx/export.hpp"
 
 namespace phx {
 
@@ -62,31 +62,34 @@ class PHOENIX_EXPORT Material : public Resource, public Nameable {
 
   ResourcePointer<Image> GetDiffuseImage() const;
   void SetDiffuseImage(ResourcePointer<Image> image);
-
-  gl::texture_2d* GetDiffuseTexture();
+  gl::texture_2d* GetDiffuseTexture() const;
 
   glm::vec3 GetAmbientColor() const;
   void SetAmbientColor(glm::vec3 color);
 
   ResourcePointer<Image> GetAmbientImage() const;
   void SetAmbientImage(ResourcePointer<Image> image);
-
-  gl::texture_2d* GetAmbientTexture();
+  gl::texture_2d* GetAmbientTexture() const;
 
   glm::vec3 GetSpecularColor() const;
   void SetSpecularColor(glm::vec3 color);
 
   ResourcePointer<Image> GetSpecularImage() const;
   void SetSpecularImage(ResourcePointer<Image> image);
-
-  gl::texture_2d* GetSpecularTexture();
+  gl::texture_2d* GetSpecularTexture() const;
 
   float GetShininess() const;
   void SetShininess(float shininess);
 
+  static const Material* GetDefault();
+
+  // unless this was called Get..Texture return nullptr
+  void UploadTextures();
+
  private:
   void SetTexture(ResourcePointer<Image> image,
                   std::shared_ptr<gl::texture_2d>* texture);
+  void ResetTexture(std::shared_ptr<gl::texture_2d>* texture);
 
   ResourcePointer<Image> ambient_image_{nullptr};
   ResourcePointer<Image> diffuse_image_{nullptr};
@@ -97,7 +100,9 @@ class PHOENIX_EXPORT Material : public Resource, public Nameable {
   glm::vec3 ambient_color_ = glm::vec3(0, 0, 0);
   glm::vec3 diffuse_color_ = glm::vec3(1, 0, 0);
   glm::vec3 specular_color_ = glm::vec3(1, 1, 1);
-  float shininess_ = 1.0f;
+  float shininess_ = 64.0f;
+
+  static const Material default_material_;
 };
 
 }  // namespace phx
diff --git a/library/phx/scripting/behavior_system.hpp b/library/phx/scripting/behavior_system.hpp
index 5513e828fc5cf1e59db20b0beabc5d914b4a4fc3..e723ab04016c3b1aa9369dd78fb0c9079a050a15 100644
--- a/library/phx/scripting/behavior_system.hpp
+++ b/library/phx/scripting/behavior_system.hpp
@@ -31,14 +31,12 @@
 
 namespace phx {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class PHOENIX_EXPORT BehaviorSystem : public System {
  public:
   BehaviorSystem() = delete;
   BehaviorSystem(const BehaviorSystem&) = delete;
   BehaviorSystem(BehaviorSystem&&) = default;
-  ~BehaviorSystem() = default;
+  ~BehaviorSystem() override = default;
 
   void Update(const FrameTimer::TimeInfo& time_info) override;
 
@@ -50,8 +48,6 @@ class PHOENIX_EXPORT BehaviorSystem : public System {
   explicit BehaviorSystem(Engine* engine);
 };
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace phx
 
 #endif  // LIBRARY_PHX_SCRIPTING_BEHAVIOR_SYSTEM_HPP_
diff --git a/library/phx/scripting/generic_behavior.cpp b/library/phx/scripting/generic_behavior.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..7ac991bfecc58048c6c4ea80e05e202cdba7264a
--- /dev/null
+++ b/library/phx/scripting/generic_behavior.cpp
@@ -0,0 +1,44 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "generic_behavior.hpp"
+
+#include <string>
+
+namespace phx {
+
+GenericBehavior::GenericBehavior(
+    const std::function<void(Entity*)>& on_construction,
+    const std::function<void(const FrameTimer::TimeInfo* time_info, Entity*)>&
+        on_update,
+    const std::string& name /*= "unnamed"*/)
+    : on_update_(on_update), name_(name) {
+  on_construction(GetEntity());
+}
+
+void GenericBehavior::OnUpdate() { on_update_(time_info_, GetEntity()); }
+
+std::string GenericBehavior::ToString() const {
+  return "GenericBehavior: " + name_;
+}
+
+}  // namespace phx
diff --git a/library/phx/scripting/generic_behavior.hpp b/library/phx/scripting/generic_behavior.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..cc86fb25b0499a453395c8a3bc0ca220655a9ac8
--- /dev/null
+++ b/library/phx/scripting/generic_behavior.hpp
@@ -0,0 +1,60 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#ifndef LIBRARY_PHX_SCRIPTING_GENERIC_BEHAVIOR_HPP_
+#define LIBRARY_PHX_SCRIPTING_GENERIC_BEHAVIOR_HPP_
+
+#include <functional>
+#include <string>
+
+#include "phx/scripting/behavior.hpp"
+
+namespace phx {
+
+class PHOENIX_EXPORT GenericBehavior : public Behavior {
+ public:
+  GenericBehavior(
+      const std::function<void(Entity*)>& on_construction,
+      const std::function<void(const FrameTimer::TimeInfo* time_info, Entity*)>&
+          on_update,
+      const std::string& name = "unnamed");
+  GenericBehavior(const GenericBehavior&) = default;
+  GenericBehavior(GenericBehavior&&) = default;
+
+  GenericBehavior& operator=(const GenericBehavior&) = default;
+  GenericBehavior& operator=(GenericBehavior&&) = default;
+
+  ~GenericBehavior() = default;
+
+  void OnUpdate() override;
+  std::string ToString() const override;
+
+ protected:
+  std::function<void(Entity*)> on_construction_;
+  std::function<void(const FrameTimer::TimeInfo* time_info, Entity*)>
+      on_update_;
+  std::string name_;
+};
+
+}  // namespace phx
+
+#endif  // LIBRARY_PHX_SCRIPTING_GENERIC_BEHAVIOR_HPP_
diff --git a/library/phx/setup.cpp b/library/phx/setup.cpp
index 0c0a862450954383f9621a8cc40f27a5473e5449..895d4eb3251b1257004b50e5222aeb558c984487 100644
--- a/library/phx/setup.cpp
+++ b/library/phx/setup.cpp
@@ -27,6 +27,8 @@
 #include <string>
 #include <utility>
 
+#include "input/device_system.hpp"
+#include "input/vr_controller.hpp"
 #include "phx/core/component.hpp"
 #include "phx/core/engine.hpp"
 #include "phx/core/logger.hpp"
@@ -36,7 +38,7 @@
 #include "phx/display/display_system_window.hpp"
 #include "phx/display/hmd.hpp"
 #include "phx/input/input_system.hpp"
-#include "phx/input/openvr_controller_system.hpp"
+#include "phx/input/openvr_controller_model_system.hpp"
 #include "phx/rendering/backend/render_target.hpp"
 #include "phx/rendering/render_passes/blit_pass.hpp"
 #include "phx/rendering/render_passes/clear_pass.hpp"
@@ -56,16 +58,21 @@ std::unique_ptr<Engine> Setup::CreateDefaultEngine(bool use_hmd_if_available) {
   engine->CreateSystem<InputSystem>()->AddQuitCallback(
       [engine_ptr]() { engine_ptr->Stop(); });
 
+  auto device_system = engine->CreateSystem<DeviceSystem>();
+
   auto displaysys_window = engine->CreateSystem<DisplaySystemWindow>();
-  DisplaySystemOpenVR* displaysys_hmd = nullptr;
+  DisplaySystemOpenVR* displaysys_openVR = nullptr;
   bool using_hmd = false;
 
   if (HMD::IsHMDPresent() && use_hmd_if_available) {
     info("An HMD is present so we use it");
     using_hmd = true;
 
-    displaysys_hmd = engine->CreateSystem<DisplaySystemOpenVR>();
-    displaysys_hmd->CreateHMD();
+    device_system->AddDevice<HMD>();
+    device_system->AddDevice<VRController>(VRController::LEFT_CONTROLLER);
+    device_system->AddDevice<VRController>(VRController::RIGHT_CONTROLLER);
+
+    displaysys_openVR = engine->CreateSystem<DisplaySystemOpenVR>();
   }
 
   const std::string window_title{using_hmd ? "Phoenix -- HMD Companion"
@@ -79,21 +86,24 @@ std::unique_ptr<Engine> Setup::CreateDefaultEngine(bool use_hmd_if_available) {
 
   // fix update order
   engine->MoveSystemToBack(displaysys_window);
+  if (displaysys_openVR != nullptr) engine->MoveSystemToBack(displaysys_openVR);
   engine->MoveSystemBefore(rendering_system, displaysys_window);
+  engine->MoveSystemBefore(device_system, rendering_system);
 
   // setup rendering and frame graph
-  if (using_hmd) {
-    auto tracking_system =
-        engine->CreateSystem<TrackingSystemOpenVR>(displaysys_hmd);
-    auto controller_system = engine->CreateSystem<OpenVRControllerSystem>(
-        engine->GetSystem<DisplaySystem>());
+  if (HMD::IsHMDPresent() && use_hmd_if_available) {
+    auto controller_model_system =
+        engine->CreateSystem<OpenVRControllerModelSystem>(
+            engine->GetSystem<DeviceSystem>());
+    auto tracking_system = engine->CreateSystem<TrackingSystemOpenVR>(
+        engine->GetSystem<DeviceSystem>());
 
-    displaysys_hmd->CreateRenderTargets(engine->GetScene().get());
+    displaysys_openVR->CreateRenderTargets(engine->GetScene().get());
     SetupDefaultFrameGraphOpenVR(rendering_system, engine.get());
 
     engine->MoveSystemBefore(tracking_system, rendering_system);
     engine->MoveSystemAfter(behavior_system, tracking_system);
-    engine->MoveSystemAfter(controller_system, tracking_system);
+    engine->MoveSystemAfter(controller_model_system, tracking_system);
   } else {
     displaysys_window->CreateRenderTarget(engine->GetScene().get(), 68.0f,
                                           0.01f, 1000.0f);
diff --git a/library/phx/tracking/tracking_system_openvr.cpp b/library/phx/tracking/tracking_system_openvr.cpp
index e101095e0ff421af0d03b59666e79bc2684abb70..8156bc3c4f16e7fb9a100611004a9b28a8f68932 100644
--- a/library/phx/tracking/tracking_system_openvr.cpp
+++ b/library/phx/tracking/tracking_system_openvr.cpp
@@ -25,23 +25,22 @@
 #include <memory>
 #include <string>
 
-#include "phx/core/logger.hpp"
 #include "phx/core/runtime_component.hpp"
 #include "phx/display/display_system_openvr.hpp"
 #include "phx/display/hmd.hpp"
+#include "phx/input/device_system.hpp"
+#include "phx/input/vr_controller.hpp"
 #include "phx/rendering/components/projection.hpp"
 #include "phx/rendering/components/transform.hpp"
 
 namespace phx {
 
 TrackingSystemOpenVR::TrackingSystemOpenVR(Engine* engine,
-                                           DisplaySystemOpenVR* display_system)
+                                           DeviceSystem* device_system)
     : System(engine) {
-  if (!display_system)
-    error("TrackingSystemOpenVR needs a valid DisplaySystemOpenVR.");
-  if (display_system->GetHMD()) {
-    CreateRuntimeEntities(engine->GetScene().get());
-    scene_changed_connection_ = engine->AddSceneChangedCallback(
+  if (device_system->GetDevices<HMD>().size() != 0) {
+    CreateRuntimeEntities(engine_->GetScene().get());
+    scene_changed_connection_ = engine_->AddSceneChangedCallback(
         [this](std::shared_ptr<Scene> old_scene,
                std::shared_ptr<Scene> new_scene) {
           OnSceneChanged(old_scene, new_scene);
@@ -54,43 +53,34 @@ TrackingSystemOpenVR::~TrackingSystemOpenVR() {
 }
 
 void TrackingSystemOpenVR::Update(const FrameTimer::TimeInfo&) {
-  const auto dispsys_openvr = engine_->GetSystem<DisplaySystemOpenVR>();
-  if (dispsys_openvr == nullptr) {
+  const auto device_system = engine_->GetSystem<DeviceSystem>();
+  if (device_system == nullptr) {
     return;
   }
-  const auto hmd = dispsys_openvr->GetHMD();
-  if (hmd == nullptr) {
-    return;
-  }
-  hmd->UpdateTrackedDevices();
-  const auto head_transformation = hmd->GetHeadTransformation();
-  if (hmd_entity_ != nullptr) {
-    hmd_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
-        head_transformation);
-    const auto left_eye_transformation = hmd->GetEyeToHeadMatrix(HMD::LEFT_EYE);
-    left_eye_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
-        left_eye_transformation);
-    const auto right_eye_transformation =
-        hmd->GetEyeToHeadMatrix(HMD::RIGHT_EYE);
-    right_eye_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
-        right_eye_transformation);
-
-    left_controller_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
-        hmd->GetLeftControllerTransformation());
-
-    right_controller_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
-        hmd->GetRightControllerTransformation());
-  }
+
+  auto hmds = device_system->GetDevices<HMD>();
+  if (hmds.size() != 1) return;
+  auto hmd = hmds[0];
+
+  hmd_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(hmd->GetPose());
+  left_eye_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
+      hmd->GetEyeToHeadMatrix(HMD::LEFT_EYE));
+  right_eye_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
+      hmd->GetEyeToHeadMatrix(HMD::RIGHT_EYE));
+
+  left_controller_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
+      GetController(VRController::LEFT_CONTROLLER)->GetPose());
+
+  right_controller_entity_->GetFirstComponent<Transform>()->SetLocalMatrix(
+      GetController(VRController::RIGHT_CONTROLLER)->GetPose());
 }
 
 void TrackingSystemOpenVR::CreateRuntimeEntities(Scene* scene) {
-  const auto hmd = engine_->GetSystem<DisplaySystemOpenVR>()->GetHMD();
-  if (hmd == nullptr) {
-    return;
-  }
-  if (scene == nullptr) {
+  const auto device_system = engine_->GetSystem<DeviceSystem>();
+  if (device_system == nullptr || scene == nullptr) {
     return;
   }
+
   const auto virtual_platforms = scene->GetEntitiesWithComponents<
       phx::RuntimeComponent<phx::USER_PLATFORM>>();
   if (!virtual_platforms.empty()) {
@@ -102,18 +92,18 @@ void TrackingSystemOpenVR::CreateRuntimeEntities(Scene* scene) {
     hmd_entity_->AddComponent<RuntimeComponent<HEAD>>();
     auto hmd_transform = hmd_entity_->AddComponent<Transform>();
     hmd_transform->SetParent(virtual_platform_transform);
-    left_eye_entity_ = scene->CreateEntity();
 
+    left_eye_entity_ = scene->CreateEntity();
     left_eye_entity_->AddComponent<RuntimeComponent<LEFT_EYE>>();
     auto left_eye_transform = left_eye_entity_->AddComponent<Transform>();
     left_eye_transform->SetParent(hmd_transform);
     left_eye_entity_->AddComponent<Projection>();
-    right_eye_entity_ = scene->CreateEntity();
 
+    right_eye_entity_ = scene->CreateEntity();
     right_eye_entity_->AddComponent<RuntimeComponent<RIGHT_EYE>>();
     auto right_eye_transform = right_eye_entity_->AddComponent<Transform>();
-    right_eye_entity_->AddComponent<Projection>();
     right_eye_transform->SetParent(hmd_transform);
+    right_eye_entity_->AddComponent<Projection>();
 
     left_controller_entity_ = scene->CreateEntity();
     left_controller_entity_->AddComponent<RuntimeComponent<LEFT_CONTROLLER>>();
@@ -132,18 +122,34 @@ void TrackingSystemOpenVR::CreateRuntimeEntities(Scene* scene) {
 
 void TrackingSystemOpenVR::RemoveRuntimeEntities(Scene* scene) {
   scene->RemoveEntity(hmd_entity_);
+  hmd_entity_ = nullptr;
   scene->RemoveEntity(left_eye_entity_);
+  left_eye_entity_ = nullptr;
   scene->RemoveEntity(right_eye_entity_);
+  right_eye_entity_ = nullptr;
   scene->RemoveEntity(left_controller_entity_);
+  left_controller_entity_ = nullptr;
   scene->RemoveEntity(right_controller_entity_);
+  right_controller_entity_ = nullptr;
 }
 
 void TrackingSystemOpenVR::OnSceneChanged(std::shared_ptr<Scene> old_scene,
-                                    std::shared_ptr<Scene> new_scene) {
+                                          std::shared_ptr<Scene> new_scene) {
   RemoveRuntimeEntities(old_scene.get());
   CreateRuntimeEntities(new_scene.get());
 }
 
+VRController* TrackingSystemOpenVR::GetController(
+    VRController::ControllerSide side) {
+  for (auto controller :
+       engine_->GetSystem<DeviceSystem>()->GetDevices<VRController>()) {
+    if (controller->GetSide() == side) {
+      return controller;
+    }
+  }
+  return nullptr;
+}
+
 std::string TrackingSystemOpenVR::ToString() const { return "Tracking System"; }
 
 }  // namespace phx
diff --git a/library/phx/tracking/tracking_system_openvr.hpp b/library/phx/tracking/tracking_system_openvr.hpp
index ad35174c67e3bc5199e575e4dcff6ba65c9be1fb..fd76bce5588bf3018e16ea8fb33dbc9ffbf253a9 100644
--- a/library/phx/tracking/tracking_system_openvr.hpp
+++ b/library/phx/tracking/tracking_system_openvr.hpp
@@ -30,8 +30,8 @@
 
 #include "phx/core/engine.hpp"
 #include "phx/core/system.hpp"
-#include "phx/display/display_system_openvr.hpp"
 #include "phx/export.hpp"
+#include "phx/input/vr_controller.hpp"
 
 SUPPRESS_WARNINGS_BEGIN
 #define BOOST_BIND_NO_PLACEHOLDERS
@@ -39,13 +39,14 @@ SUPPRESS_WARNINGS_BEGIN
 SUPPRESS_WARNINGS_END
 
 namespace phx {
+class DeviceSystem;
 
 class PHOENIX_EXPORT TrackingSystemOpenVR : public System {
  public:
   TrackingSystemOpenVR() = delete;
   TrackingSystemOpenVR(const TrackingSystemOpenVR&) = delete;
   TrackingSystemOpenVR(TrackingSystemOpenVR&&) = default;
-  ~TrackingSystemOpenVR();
+  ~TrackingSystemOpenVR() override;
 
   TrackingSystemOpenVR& operator=(const TrackingSystemOpenVR&) = delete;
   TrackingSystemOpenVR& operator=(TrackingSystemOpenVR&&) = default;
@@ -55,7 +56,7 @@ class PHOENIX_EXPORT TrackingSystemOpenVR : public System {
   std::string ToString() const override;
 
  protected:
-  TrackingSystemOpenVR(Engine* engine, DisplaySystemOpenVR* display_system);
+  TrackingSystemOpenVR(Engine* engine, DeviceSystem* device_system);
 
  private:
   template <typename SystemType, typename... SystemArguments>
@@ -66,6 +67,8 @@ class PHOENIX_EXPORT TrackingSystemOpenVR : public System {
   void OnSceneChanged(std::shared_ptr<Scene> old_scene,
                       std::shared_ptr<Scene> new_scene);
 
+  VRController* GetController(VRController::ControllerSide side);
+
   Entity* hmd_entity_ = nullptr;
   Entity* left_eye_entity_ = nullptr;
   Entity* right_eye_entity_ = nullptr;
diff --git a/library/phx/utility/aspects/hierarchical.hpp b/library/phx/utility/aspects/hierarchical.hpp
index 45dd77d166b3908678d4e8e22ceb3ba00050bcb0..c9467b9137594b6f076cfe9ba988de142b74502f 100644
--- a/library/phx/utility/aspects/hierarchical.hpp
+++ b/library/phx/utility/aspects/hierarchical.hpp
@@ -34,15 +34,20 @@ namespace phx {
 template <typename Derived>
 class PHOENIX_EXPORT Hierarchical {
  public:
-  virtual ~Hierarchical() = default;
+  virtual ~Hierarchical() {
+    Hierarchical::SetParent(nullptr);
+    while (children_.size() != 0) {
+      children_[0]->SetParent(nullptr);
+    }
+  }
 
   virtual void SetParent(Derived* parent) {
-    if (parent_)
+    if (parent_) {
       parent_->children_.erase(
           std::remove(parent_->children_.begin(), parent_->children_.end(),
                       static_cast<Derived*>(this)),
           parent_->children_.end());
-
+    }
     parent_ = parent;
 
     if (parent_) parent_->children_.push_back(static_cast<Derived*>(this));
diff --git a/library/phx/utility/stream_helpers.hpp b/library/phx/utility/stream_helpers.hpp
index c464887c49b75208f9433a0181e50e5b2e4046db..89902b6cd7f208dc3f746915c003be3f36d55c51 100644
--- a/library/phx/utility/stream_helpers.hpp
+++ b/library/phx/utility/stream_helpers.hpp
@@ -41,7 +41,6 @@ SUPPRESS_WARNINGS_END
 // namespace like e.g. phx, leaving them in global namespace would not work
 namespace glm {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
 class PHOENIX_EXPORT PhxStreamSettings {
  public:
   explicit PhxStreamSettings(std::ostream& stream);
@@ -57,7 +56,6 @@ class PHOENIX_EXPORT PhxStreamSettings {
   std::streamsize stream_precision_;
   std::ios::fmtflags stream_flags_;
 };
-SUPPRESS_WARNINGS_END
 
 PHOENIX_EXPORT std::ostream& operator<<(std::ostream& out,
                                         const glm::vec2& vec);
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 7a9d51630e5abc3d55fc600d163802bf5d3266ed..f63ed905d8e76ba508e35cf4c75092d0c56031d9 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -22,86 +22,43 @@
 
 #see at the bottom how to add mocked tests
 
-# configure reference image directory include string
-set(_REFIMAGE_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/reference_images/")
-set(SOURCE_REFIMAGE_INCLUDE_FILE "${CMAKE_CURRENT_SOURCE_DIR}/test_utilities/reference_image_path.hpp.template")
-set(TARGET_REFIMAGE_INCLUDE_FILE "${CMAKE_CURRENT_BINARY_DIR}/test_utilities/reference_image_path.hpp")
-configure_file(${SOURCE_REFIMAGE_INCLUDE_FILE} ${TARGET_REFIMAGE_INCLUDE_FILE} @ONLY)
-
 file(GLOB PHOENIX_TEST_SOURCES src/*.cpp)
 file(GLOB PHOENIX_TEST_HEADERS src/*.hpp)
 file(GLOB PHOENIX_TEST_UTILITIES_TEST_SOURCES test_utilities/tests/src/*.cpp)
 file(GLOB PHOENIX_TEST_UTILITIES_HEADERS test_utilities/*.hpp)
 file(GLOB PHOENIX_TEST_UTILITIES_SOURCES test_utilities/*.cpp)
+file(GLOB TEST_MAIN_SOURCES src/tests.cpp)
+file(GLOB MOCK_MAIN_SOURCES src/mocks/mocks.cpp)
 
-#get the include directories
-get_target_property(glew_include_directories
-  ${CONAN_OR_CMAKE_glew} INTERFACE_INCLUDE_DIRECTORIES)
-get_target_property(phoenix_include_directories 
-  phoenix INCLUDE_DIRECTORIES)
-get_target_property(sdl2_include_directories
-  ${CONAN_OR_CMAKE_sdl2} INTERFACE_INCLUDE_DIRECTORIES)
-get_target_property(openvr_include_directories
-  ${CONAN_OR_CMAKE_openvr} INTERFACE_INCLUDE_DIRECTORIES)
-get_target_property(gl_include_directories
-  ${CONAN_OR_CMAKE_gl} INTERFACE_INCLUDE_DIRECTORIES)
-
-
-macro(add_mock_lib mock_name mock_src_path)
-  add_library(${mock_name} SHARED
-    ${mock_src_path}/${mock_name}.cpp
-    ${mock_src_path}/${mock_name}.hpp
+
+create_test_main(
+  SOURCES ${TEST_MAIN_SOURCES}
+  LIBRARIES ${CONAN_OR_CMAKE_catch}
   )
-  target_link_libraries(${mock_name}
-    ${CONAN_OR_CMAKE_trompeloeil})
-  #phx include dirs needed for suppress_warnings.hpp
-  target_include_directories(${mock_name}
-    PRIVATE ${phoenix_include_directories})
-  set_property(TARGET ${mock_name} PROPERTY FOLDER "Tests")
-  set_warning_levels_rwth(${mock_name})
-endmacro()
+list(REMOVE_ITEM PHOENIX_TEST_SOURCES ${TEST_MAIN_SOURCES})
 
-# generate opengl_mock
-set( OPENGL_MOCK_SOURCE ${CMAKE_CURRENT_BINARY_DIR}/mocks)
-set( OPENGL_MOCK_GENERATOR ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/generation/Create_openGL_mock.py)
-if( NOT EXISTS ${OPENGL_MOCK_SOURCE}/opengl_mock.cpp OR 
-    ${OPENGL_MOCK_GENERATOR} IS_NEWER_THAN 
-    ${OPENGL_MOCK_SOURCE}/opengl_mock.cpp)
-  file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/mocks")
-  EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} 
-    "${OPENGL_MOCK_GENERATOR}" 
-    -g "${glew_include_directories}" 
-    -m "${OPENGL_MOCK_SOURCE}/" 
-    -t "${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/generation/")
-endif()
+create_mock_main(
+  SOURCES ${MOCK_MAIN_SOURCES}
+  LIBRARIES ${CONAN_OR_CMAKE_catch} ${CONAN_OR_CMAKE_trompeloeil}
+  )
+list(REMOVE_ITEM PHOENIX_TEST_SOURCES ${MOCK_MAIN_SOURCES})
 
-add_mock_lib(opengl_mock ${OPENGL_MOCK_SOURCE})
-target_include_directories(opengl_mock
-  PUBLIC ${OPENGL_MOCK_SOURCE}
-  PUBLIC ${glew_include_directories})
-target_compile_definitions(opengl_mock
-  PRIVATE OPENGL_MOCK_BUILD)
-generate_export_header(opengl_mock
-  EXPORT_FILE_NAME ${OPENGL_MOCK_SOURCE}/opengl_mock_export.hpp
-)
 
-# generate openvr_mock
-add_mock_lib(openvr_mock ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks)
-target_include_directories(openvr_mock
-  PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src
-  PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/mocks
-  PUBLIC ${openvr_include_directories})
-target_compile_definitions(openvr_mock
-  PRIVATE OPENVR_MOCK_BUILD)
-generate_export_header(openvr_mock
-  EXPORT_FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/mocks/openvr_mock_export.hpp
-)
+# configure reference image directory include string
+set(_REFIMAGE_ROOT_PATH
+  "${CMAKE_CURRENT_SOURCE_DIR}/reference_images/"
+  )
+set(SOURCE_REFIMAGE_INCLUDE_FILE
+  "${CMAKE_CURRENT_SOURCE_DIR}/test_utilities/reference_image_path.hpp.template"
+  )
+set(TARGET_REFIMAGE_INCLUDE_FILE
+  "${CMAKE_CURRENT_BINARY_DIR}/test_utilities/reference_image_path.hpp"
+  )
+configure_file(${SOURCE_REFIMAGE_INCLUDE_FILE}
+  ${TARGET_REFIMAGE_INCLUDE_FILE}
+  @ONLY
+  )
 
-#the opengl mock gets quite large due to the trompleoeil templates
-if(MSVC)
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj")
-	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /bigobj")
-endif(MSVC)
 
 # generate test_utilities
 add_library(test_utilities STATIC
@@ -120,82 +77,78 @@ target_link_libraries(test_utilities
 set_warning_levels_rwth(test_utilities)
 
 
+# generate opengl_mock
+get_target_property(glew_include_directories
+  ${CONAN_OR_CMAKE_glew} INTERFACE_INCLUDE_DIRECTORIES)
+set( OPENGL_MOCK_SOURCE ${CMAKE_CURRENT_BINARY_DIR}/mocks)
+set( OPENGL_MOCK_GENERATOR ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/generation/Create_openGL_mock.py)
+if( NOT EXISTS ${OPENGL_MOCK_SOURCE}/opengl_mock.cpp OR 
+    ${OPENGL_MOCK_GENERATOR} IS_NEWER_THAN 
+    ${OPENGL_MOCK_SOURCE}/opengl_mock.cpp)
+  file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/mocks")
+  EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} 
+    "${OPENGL_MOCK_GENERATOR}" 
+    -g "${glew_include_directories}" 
+    -m "${OPENGL_MOCK_SOURCE}/" 
+    -t "${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/generation/")
+endif()
+
 #get the gl link library
 if(TARGET CONAN_LIB::gl_gl)
-  get_target_property(gl_link_library CONAN_LIB::gl_gl LOCATION)
+  get_target_property(GL_LIBRARY CONAN_LIB::gl_gl LOCATION)
 elseif(TARGET CONAN_LIB::gl_glrelease)
-  get_target_property(gl_imported_location_rel CONAN_LIB::gl_glrelease LOCATION)
-  get_target_property(gl_imported_location_deb CONAN_LIB::gl_gldebug LOCATION)
-  set(gl_link_library "$<$<CONFIG:Release>:${gl_imported_location_rel}>$<$<CONFIG:Debug>:${gl_imported_location_deb}>")
-else()
-  message(FATAL_ERROR "You are using a conan version older than 0.29, please update e.g. by \"pip install conan --upgrade\"")
+  get_target_property(GL_LIBRARY_LOCATION_RELEASE
+    CONAN_LIB::gl_glrelease LOCATION)
+  get_target_property(GL_LIBRARY_LOCATION_DEBUG
+    CONAN_LIB::gl_gldebug LOCATION)
+  set(GL_LIBRARY
+    "$<$<CONFIG:Release>:${GL_LIBRARY_LOCATION_RELEASE}>$<$<CONFIG:Debug>:${GL_LIBRARY_LOCATION_DEBUG}>")
 endif()
+  
+add_mock(
+  NAME opengl_mock
+  SOURCES ${CMAKE_CURRENT_BINARY_DIR}/mocks/opengl_mock.cpp
+  HEADERS ${CMAKE_CURRENT_BINARY_DIR}/mocks/opengl_mock.hpp
+  INCLUDE_DIRECTORIES
+    ${CMAKE_CURRENT_BINARY_DIR}
+  INCLUDE_DIRECTORIES_OF
+    phoenix
+    ${CONAN_OR_CMAKE_gl}
+    ${CONAN_OR_CMAKE_glew}
+  COMPILE_OPTIONS $<$<CXX_COMPILER_ID:MSVC>:/bigobj>
+  REMOVES_LIBRARIES
+    ${CONAN_OR_CMAKE_gl}
+    ${CONAN_OR_CMAKE_glew}
+    ${CONAN_OR_CMAKE_sdl2}
+    ${OPENGL_LIBRARIES}
+  ADDS_LIBRARIES ${GL_LIBRARY}
+  )
 
-set(IS_BUILD_SERVER FALSE CACHE BOOL "Is this the build server? So we, e.g., simulate user input for tests requiring it.")
-
-
-macro(add_mocked_test cpp_file)
-  set(options MOCK_GLEW MOCK_SDL MOCK_OPENVR)
-  set(oneValueArgs )
-  set(multiValueArgs )
-  cmake_parse_arguments(ADD_MOCKED_TEST
-    "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
-
-  list(REMOVE_ITEM PHOENIX_TEST_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src/${cpp_file}.cpp)
-
-  set(test_sources src/tests.cpp src/${cpp_file}.cpp)
-  add_executable(${cpp_file} ${test_sources})
-
-  add_dependencies(${cpp_file} phoenix test_utilities)
-
-  ADD_TEST_CATCH_INTERNAL_(${cpp_file} ${test_sources} "")
-
-  # make shure linker dependency injection works
-  target_include_directories(${cpp_file}
-    PRIVATE ${phoenix_include_directories}
-    PRIVATE ${glew_include_directories}
-	PRIVATE ${gl_include_directories}
-    PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
-    PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src
-    PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
-
-  get_target_property(phoenix_link_libraries phoenix LINK_LIBRARIES)
-
-  if(${ADD_MOCKED_TEST_MOCK_GLEW})
-    list(REMOVE_ITEM phoenix_link_libraries ${CONAN_OR_CMAKE_gl})
-    list(REMOVE_ITEM phoenix_link_libraries ${CONAN_OR_CMAKE_glew})
-    #SDL has also to be removed since it contains OpenGL
-    list(REMOVE_ITEM phoenix_link_libraries ${CONAN_OR_CMAKE_sdl2})
-    list(REMOVE_ITEM phoenix_link_libraries ${OPENGL_LIBRARIES})
-    list(APPEND phoenix_link_libraries opengl_mock)
-    list(APPEND phoenix_link_libraries ${gl_link_library})
-	
-  endif(${ADD_MOCKED_TEST_MOCK_GLEW})
-
-  if(${ADD_MOCKED_TEST_MOCK_SDL})
-    target_sources(${cpp_file}
-      PRIVATE src/mocks/sdl_mock.cpp
-      PRIVATE src/mocks/sdl_mock.hpp)
-    target_compile_definitions(${cpp_file} PRIVATE TESTING)
-    target_include_directories(${cpp_file}
-      PRIVATE ${sdl2_include_directories})
-    list(REMOVE_ITEM phoenix_link_libraries ${CONAN_OR_CMAKE_sdl2})
-  endif(${ADD_MOCKED_TEST_MOCK_SDL})
-
-  if(${ADD_MOCKED_TEST_MOCK_OPENVR})
-    list(REMOVE_ITEM phoenix_link_libraries ${CONAN_OR_CMAKE_openvr})
-    list(APPEND phoenix_link_libraries openvr_mock)
-  endif(${ADD_MOCKED_TEST_MOCK_OPENVR})
-
-  target_link_libraries(${cpp_file}
-    ${CONAN_OR_CMAKE_trompeloeil}
-    ${CONAN_OR_CMAKE_catch}
-	$<TARGET_FILE:phoenix>
-    ${phoenix_link_libraries}
-    $<TARGET_FILE:test_utilities>
+add_mock(
+  NAME openvr_mock
+  SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/openvr_mock.cpp
+  HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/openvr_mock.hpp
+  INCLUDE_DIRECTORIES
+    ${CMAKE_CURRENT_SOURCE_DIR}/src
+    ${CMAKE_CURRENT_BINARY_DIR}
+  INCLUDE_DIRECTORIES_OF
+    phoenix
+    ${CONAN_OR_CMAKE_openvr}
+  REMOVES_LIBRARIES ${CONAN_OR_CMAKE_openvr}
   )
-endmacro()
 
+add_mock(
+  NAME sdl_mock
+  SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/sdl_mock.cpp
+  HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/src/mocks/sdl_mock.hpp
+  INCLUDE_DIRECTORIES
+    ${CMAKE_CURRENT_SOURCE_DIR}/src
+    ${CMAKE_CURRENT_BINARY_DIR}
+  INCLUDE_DIRECTORIES_OF
+    phoenix
+    ${CONAN_OR_CMAKE_sdl2}
+  REMOVES_LIBRARIES ${CONAN_OR_CMAKE_sdl2}
+  )
 
 
 # these have to go before the mocked tests.
@@ -214,37 +167,42 @@ add_test_cpplint(NAME "phoenix-tests--cpplint"
   ${PHOENIX_TEST_UTILITIES_SOURCES}
 )
 
-#-------------------------------------------------------------------------------
-#-------------------------------------------------------------------------------
 
 # Only tests that require mocking need to be specified separately here.
-# By doing so they are removed from ${PHOENIX_TEST_SOURCES} automatically.
-add_mocked_test(test_clear_pass MOCK_GLEW)
-add_mocked_test(test_input_system MOCK_SDL MOCK_OPENVR)
-add_mocked_test(test_geometry_pass MOCK_GLEW MOCK_SDL)
-add_mocked_test(test_rendering_system MOCK_GLEW MOCK_SDL)
-add_mocked_test(test_shader MOCK_GLEW)
-add_mocked_test(test_display_system MOCK_SDL)
-add_mocked_test(test_engine MOCK_SDL MOCK_OPENVR MOCK_GLEW)
-add_mocked_test(test_tracking_system MOCK_SDL MOCK_OPENVR)
-add_mocked_test(test_openvr_controller_system MOCK_SDL MOCK_OPENVR MOCK_GLEW)
-
-add_mocked_test(integration_test_model_rendering MOCK_OPENVR)
-add_mocked_test(integration_test_opengl_buffer_data_download MOCK_OPENVR)
-add_mocked_test(integration_test_rendering MOCK_OPENVR)
-add_mocked_test(integration_test_hmd MOCK_OPENVR)
-
-#-------------------------------------------------------------------------------
-#-------------------------------------------------------------------------------
-
-
-add_test_catch(NAME "phoenix-tests"
+# By doing so they are removed from the list of sources
+# specified via AUTOREMOVE_MOCKED_TEST_SOURCE_FROM
+autoremove_mocked_test_source_from(${PHOENIX_TEST_SOURCES})
+
+add_mocked_test(test_clear_pass                     LIBRARIES phoenix                MOCKS opengl_mock)
+add_mocked_test(test_input_system                   LIBRARIES phoenix                MOCKS openvr_mock sdl_mock)
+add_mocked_test(test_geometry_pass                  LIBRARIES phoenix test_utilities MOCKS opengl_mock sdl_mock)
+add_mocked_test(test_rendering_system               LIBRARIES phoenix                MOCKS opengl_mock sdl_mock)
+add_mocked_test(test_shader                         LIBRARIES phoenix                MOCKS opengl_mock)
+add_mocked_test(test_display_system                 LIBRARIES phoenix                MOCKS sdl_mock)
+add_mocked_test(test_engine                         LIBRARIES phoenix test_utilities MOCKS opengl_mock openvr_mock sdl_mock)
+add_mocked_test(test_tracking_system                LIBRARIES phoenix test_utilities MOCKS openvr_mock sdl_mock)
+add_mocked_test(test_openvr_controller_model_system LIBRARIES phoenix                MOCKS opengl_mock openvr_mock sdl_mock)
+add_mocked_test(test_tracked_device                 LIBRARIES phoenix                MOCKS openvr_mock)
+add_mocked_test(test_vr_controller                  LIBRARIES phoenix test_utilities MOCKS openvr_mock)
+add_mocked_test(test_assimp_loader                  LIBRARIES phoenix test_utilities MOCKS opengl_mock)
+add_mocked_test(test_model                          LIBRARIES phoenix                MOCKS opengl_mock)
+add_mocked_test(test_scene_loader                   LIBRARIES phoenix                MOCKS opengl_mock)
+
+add_mocked_test(integration_test_model_rendering             LIBRARIES phoenix test_utilities MOCKS openvr_mock)
+add_mocked_test(integration_test_opengl_buffer_data_download LIBRARIES phoenix test_utilities MOCKS openvr_mock)
+add_mocked_test(integration_test_rendering                   LIBRARIES phoenix test_utilities MOCKS openvr_mock)
+add_mocked_test(integration_test_hmd                         LIBRARIES phoenix test_utilities MOCKS openvr_mock)
+
+
+get_unmocked_test_sources(PHOENIX_TEST_SOURCES)
+
+# This adds all cpp files in tests as single tests that were not used with
+# add_mocked_test() above
+add_tests(NAME "phoenix-tests"
   SOURCES ${PHOENIX_TEST_SOURCES} ${PHOENIX_TEST_UTILITIES_TEST_SOURCES}
   HEADERS ${PHOENIX_TEST_HEADERS}
-  CATCH_MAIN src/tests.cpp
-  INCLUDE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} phoenix
-  LINK_LIBRARIES phoenix test_utilities
+  INCLUDE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
+  LIBRARIES phoenix test_utilities
   PATH_TO_ADD ${PROJECT_BINARY_DIR}/library
 )
 
-
diff --git a/tests/reference_images/hmd_test_left.png b/tests/reference_images/hmd_test_left.png
index 9989f7ae4601b0eb1fcd961ccba454ddf6fdd45d..2f975671215cd6917f0d62a78ec76a8ea84191be 100644
--- a/tests/reference_images/hmd_test_left.png
+++ b/tests/reference_images/hmd_test_left.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:e4a6d5d6c1eed96056d964381617ec97dd3b6c9d26717cdc55c1e66c8343feed
-size 115516
+oid sha256:52c050bf258acaf19f3914bcc2792e4b130cc07e8c7017b8a4c5b69dcccec76f
+size 116885
diff --git a/tests/reference_images/hmd_test_right.png b/tests/reference_images/hmd_test_right.png
index 33f5fa2758442f23f4bcf04d353ea2e6661cc9a6..2519d5d6775c6b2fec9dbdf1083ac6ad7cd6fbf4 100644
--- a/tests/reference_images/hmd_test_right.png
+++ b/tests/reference_images/hmd_test_right.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:e07eb1a9c5bfea732801cbd4b6d6321c7797d815645b23fa205a14fa50d76b3d
-size 115419
+oid sha256:a9ea7817c7c1254c1765bf4a0977dd7b430d8419d1355f60b92dce461befae35
+size 116057
diff --git a/tests/reference_images/model_loading_wireframe.png b/tests/reference_images/model_loading_wireframe.png
new file mode 100644
index 0000000000000000000000000000000000000000..fba84750d93e4e9dda237e96dd0ab6004e07d5dd
--- /dev/null
+++ b/tests/reference_images/model_loading_wireframe.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:79ea2093c78aa11360295e2ee16ffa2f815ccd2e9f9e79ab5a06a29ef895564a
+size 105684
diff --git a/tests/reference_images/triangle_without_material.png b/tests/reference_images/triangle_without_material.png
index f93066742c9359d414787cbafdc31031d11f80eb..b5eb2e6a885ae9e371ef92880dfb74a9e9e0df68 100644
--- a/tests/reference_images/triangle_without_material.png
+++ b/tests/reference_images/triangle_without_material.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:cdf28b3e240057f66ad3e4323c1ffd5aa7200bd6708a1d8d0476ff9c5a6eae22
-size 3859
+oid sha256:dfcd770371589244e01ed9ac2a85fc9e113d4b96383901dcca61cb6a1038e060
+size 10984
diff --git a/tests/src/integration_test_hmd.cpp b/tests/src/integration_test_hmd.cpp
index 7babf1ca229f2eb11ea665b3b9ce7ba0b4e2c82d..ee8600182ee2cb73f9084dcdd4d389e9e660ebc0 100644
--- a/tests/src/integration_test_hmd.cpp
+++ b/tests/src/integration_test_hmd.cpp
@@ -27,10 +27,10 @@
 
 #include "catch/catch.hpp"
 
-#include "phx/suppress_warnings.hpp"
-
 #include "phx/core/engine.hpp"
 #include "phx/core/runtime_component.hpp"
+#include "phx/display/hmd.hpp"
+#include "phx/input/device_system.hpp"
 #include "phx/rendering/backend/opengl_image_buffer_data.hpp"
 #include "phx/rendering/components/light.hpp"
 #include "phx/rendering/components/transform.hpp"
@@ -38,12 +38,11 @@
 #include "phx/resources/resource_utils.hpp"
 #include "phx/setup.hpp"
 
-SUPPRESS_WARNINGS_BEGIN
 #include "mocks/openvr_mock.hpp"
 
 #include "gl/texture.hpp"
-SUPPRESS_WARNINGS_END
 
+#include "test_utilities/glm_mat4.hpp"
 #include "test_utilities/opengl_buffer_data_comparison.hpp"
 
 #include "trompeloeil.hpp"
@@ -158,7 +157,6 @@ SCENARIO("If a HMD is present we render for both eyes including controllers",
     ::MoveUserPlatform(engine.get());
 
     WHEN("We run the engine") {
-      // TODO(JW): controller models should also be rendered
       engine->Run();
       THEN("Submit() is called for both eyes submitting the expected images") {
         ::CheckSimilarity(::left_tex_id, "hmd_test_left.png");
@@ -167,3 +165,68 @@ SCENARIO("If a HMD is present we render for both eyes including controllers",
     }
   }
 }
+
+namespace {
+
+glm::mat4 ToMat4(float mat[12]) {
+  glm::mat4 result;
+  for (int i = 0; i < 12; ++i) {
+    result[i % 4][i / 4] = mat[i];
+  }
+  return result;
+}
+}  // namespace
+
+SCENARIO("The Eye to distance is changed via vive's eye distance knob",
+         "[phx][phx::HMD]") {
+  GIVEN("A standard engine that runs one frame") {
+    OPENVR_MOCK_ALLOW_ANY_CALL
+    phx::Engine engine;
+    phx::DeviceSystem* device_system = engine.CreateSystem<phx::DeviceSystem>();
+    auto hmd = device_system->AddDevice<phx::HMD>();
+
+    REQUIRE(hmd->GetEyeToHeadMatrix(phx::HMD::LEFT_EYE) ==
+            ToMat4(openvr_mock.eye_to_head_left_));
+    REQUIRE(hmd->GetEyeToHeadMatrix(phx::HMD::RIGHT_EYE) ==
+            ToMat4(openvr_mock.eye_to_head_right_));
+
+    WHEN("We change the eye distance while the engine is running") {
+      float eye_to_head_left[12] = {1.0f, 0.0f, 0.0f, 0.03f, 0.0f, 1.0f,
+                                    0.0f, 0.0f, 0.0f, 0.0f,  1.0f, 12.0f};
+      float eye_to_head_right[12] = {1.0f, 0.0f, 0.0f, -0.03f, 0.0f, 1.0f,
+                                     0.0f, 0.0f, 0.0f, 0.0f,   1.0f, 13.0f};
+      ALLOW_CALL(openvr_mock.GetSystem(),
+                 GetEyeToHeadTransformArray(vr::EVREye::Eye_Left))
+          .LR_RETURN(eye_to_head_left);
+      ALLOW_CALL(openvr_mock.GetSystem(),
+                 GetEyeToHeadTransformArray(vr::EVREye::Eye_Right))
+          .LR_RETURN(eye_to_head_right);
+      THEN("The eye distances are different") {
+        REQUIRE_FALSE(hmd->GetEyeToHeadMatrix(phx::HMD::LEFT_EYE) ==
+                      ToMat4(eye_to_head_left));
+        REQUIRE_FALSE(hmd->GetEyeToHeadMatrix(phx::HMD::RIGHT_EYE) ==
+                      ToMat4(eye_to_head_right));
+        WHEN("The HMD is Updated and an event is received") {
+          vr::VREvent_t event;
+          event.eventType = vr::VREvent_IpdChanged;
+          auto first_call = std::make_shared<bool>(true);
+          ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _))
+              .SIDE_EFFECT(*_1 = event)
+              .SIDE_EFFECT(*first_call = false)
+              .WITH(*first_call == true)
+              .RETURN(true);
+          ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _))
+              .WITH(*first_call == false)
+              .RETURN(false);
+          hmd->Update();
+          THEN("The eye to head matrix has changed accordingly") {
+            REQUIRE(hmd->GetEyeToHeadMatrix(phx::HMD::LEFT_EYE) ==
+                    ToMat4(eye_to_head_left));
+            REQUIRE(hmd->GetEyeToHeadMatrix(phx::HMD::RIGHT_EYE) ==
+                    ToMat4(eye_to_head_right));
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/tests/src/integration_test_model_rendering.cpp b/tests/src/integration_test_model_rendering.cpp
index 729b5fc573b4f15c65d316a35ddfa63b460fc17c..39761c2ea606701292d9b3c2a9653c5fdc14f45b 100644
--- a/tests/src/integration_test_model_rendering.cpp
+++ b/tests/src/integration_test_model_rendering.cpp
@@ -27,18 +27,18 @@
 
 #include "phx/suppress_warnings.hpp"
 
-#include "phx/resources/loaders/assimp_model_loader.hpp"
+#include "phx/core/frame_timer.hpp"
+#include "phx/core/scene.hpp"
 #include "phx/display/display_system_window.hpp"
 #include "phx/display/window.hpp"
-#include "phx/core/frame_timer.hpp"
 #include "phx/rendering/backend/opengl_image_buffer_data.hpp"
 #include "phx/rendering/components/mesh_handle.hpp"
+#include "phx/rendering/components/mesh_render_settings.hpp"
 #include "phx/rendering/rendering_system.hpp"
-#include "phx/resources/types/mesh.hpp"
-#include "phx/resources/resource_declaration.hpp"
+#include "phx/resources/loaders/assimp_model_loader.hpp"
 #include "phx/resources/resource_manager.hpp"
 #include "phx/resources/resource_utils.hpp"
-#include "phx/core/scene.hpp"
+#include "phx/resources/types/mesh.hpp"
 #include "phx/setup.hpp"
 
 #include "test_utilities/opengl_buffer_data_comparison.hpp"
@@ -134,7 +134,7 @@ SCENARIO(
     "If no light and camera are give the model rendering takes default values",
     "[phx][phx::ModelLoading]") {
   ALLOW_CALL(openvr_mock.Get(), VR_IsHmdPresent()).RETURN(false);
-  GIVEN("A complete scene with two differently colored bunnies.") {
+  GIVEN("A complete scene with a bunny") {
     std::unique_ptr<phx::Engine> engine = phx::Setup::CreateDefaultEngine();
     auto scene = engine->GetScene();
 
@@ -158,4 +158,34 @@ SCENARIO(
   }
 }
 
+SCENARIO("We can render meshes as wireframe.",
+         "[phx][phx::MeshRenderSettings]") {
+  ALLOW_CALL(openvr_mock.Get(), VR_IsHmdPresent()).RETURN(false);
+  GIVEN("A complete scene with a bunny") {
+    std::unique_ptr<phx::Engine> engine = phx::Setup::CreateDefaultEngine();
+    auto scene = engine->GetScene();
+
+    auto bunny =
+        LoadBunny(glm::vec3(0.0f, -0.1f, -0.3f), 0.0f, "bunny", scene.get());
+
+    auto rendering_system = engine->GetSystem<phx::RenderingSystem>();
+    auto display_system = engine->GetSystem<phx::DisplaySystemWindow>();
+
+    WHEN("We set the rendering to be done in wireframe") {
+      auto render_settings = bunny->AddComponent<phx::MeshRenderSettings>();
+      render_settings->SetWireframeMode(true);
+      THEN("the rendering matches our reference image") {
+        rendering_system->Update(phx::FrameTimer::TimeInfo{});
+        display_system->Update(phx::FrameTimer::TimeInfo());
+        phx::OpenGLImageBufferData<phx::OpenGLImageBufferDataType_RGB> buffer(
+            1024, 768);
+        buffer.ReadColorPixels(true);
+        test_utilities::OpenGLBufferComparison::
+            REQUIRE_REFERENCE_IMAGE_SIMILARITY(
+                buffer, "model_loading_wireframe.png", 1.0);
+      }
+    }
+  }
+}
+
 SUPPRESS_WARNINGS_END
diff --git a/tests/src/integration_test_opengl_buffer_data_download.cpp b/tests/src/integration_test_opengl_buffer_data_download.cpp
index 459f99ba1b3fc4785de28aaf5e70ce816e3a9bd6..237f49bd5455d3867d9fa9feb85596c1429f7193 100644
--- a/tests/src/integration_test_opengl_buffer_data_download.cpp
+++ b/tests/src/integration_test_opengl_buffer_data_download.cpp
@@ -46,7 +46,6 @@ SUPPRESS_WARNINGS_BEGIN
 #include "mocks/openvr_mock.hpp"
 SUPPRESS_WARNINGS_END
 
-#include "test_utilities/dummy_material_generator.hpp"
 #include "test_utilities/dummy_mesh_generator.hpp"
 #include "test_utilities/opengl_buffer_data_comparison.hpp"
 
@@ -91,14 +90,9 @@ class SceneSetupSimple {
     phx::Entity* triangle = scene->CreateEntity();
     triangle->AddComponent<phx::Transform>();
 
-    phx::ResourceManager::instance().RegisterResourceType(
-        "custommaterial",
-        std::make_unique<phx::DummyMaterialGenerator>(
-            glm::vec3(), glm::vec3(), glm::vec3(1.f, 0.5f, 0.25f), 500.0f));
-    auto material =
-        phx::ResourceManager::instance().DeclareResource<phx::Material>(
-            {{"TYPE", "custommaterial"}});
-    material.Load();
+    auto material = phx::ResourceUtils::LoadGenericMaterial(
+        "custommaterial", glm::vec3(), glm::vec3(), glm::vec3(1.f, 0.5f, 0.25f),
+        500.f);
 
     phx::MaterialHandle* material_handle =
         triangle->AddComponent<phx::MaterialHandle>();
diff --git a/tests/src/integration_test_rendering.cpp b/tests/src/integration_test_rendering.cpp
index 0d23dbd4216219d241ce3bc04aa5ebfd669e6d2d..607b588d92db7d83bddd3a4933033188cafcdcac 100644
--- a/tests/src/integration_test_rendering.cpp
+++ b/tests/src/integration_test_rendering.cpp
@@ -35,15 +35,14 @@
 #include "phx/rendering/backend/opengl_image_buffer_data.hpp"
 #include "phx/rendering/components/mesh_handle.hpp"
 #include "phx/rendering/rendering_system.hpp"
-#include "phx/resources/types/mesh.hpp"
 #include "phx/resources/resource_manager.hpp"
+#include "phx/resources/types/mesh.hpp"
 #include "phx/setup.hpp"
 
 SUPPRESS_WARNINGS_BEGIN
 #include "mocks/openvr_mock.hpp"
 SUPPRESS_WARNINGS_END
 
-#include "test_utilities/dummy_material_generator.hpp"
 #include "test_utilities/dummy_mesh_generator.hpp"
 #include "test_utilities/opengl_buffer_data_comparison.hpp"
 
@@ -108,14 +107,9 @@ SCENARIO("We can render a simple triangle", "[phx][phx::Rendering]") {
     phx::Entity* triangle = scene->CreateEntity();
     CreateTestTriangleComponent(triangle);
 
-    phx::ResourceManager::instance().RegisterResourceType(
-        "custommaterial", std::make_unique<phx::DummyMaterialGenerator>(
-                              glm::vec3(0.2f, 0.2f, 1.0f), glm::vec3(1, 1, 1),
-                              glm::vec3(), 500.0f));
-    auto material =
-        phx::ResourceManager::instance().DeclareResource<phx::Material>(
-            {{"TYPE", "custommaterial"}});
-    material.Load();
+    auto material = phx::ResourceUtils::LoadGenericMaterial(
+        "custommaterial", glm::vec3(0.2f, 0.2f, 1.0f), glm::vec3(1, 1, 1),
+        glm::vec3(), 500.0f);
 
     triangle->AddComponent<phx::Transform>();
     phx::MaterialHandle* material_handle =
diff --git a/tests/src/mocks/mocks.cpp b/tests/src/mocks/mocks.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..73334bc45712e87a4b20bbf33cee8eff29543345
--- /dev/null
+++ b/tests/src/mocks/mocks.cpp
@@ -0,0 +1,43 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "catch/catch.hpp"
+
+#include "trompeloeil.hpp"
+
+namespace trompeloeil {
+template <>
+void reporter<specialized>::send(severity s, const char* file,  // NOLINT
+                                 unsigned long line,            // NOLINT
+                                 const char* msg) {             // NOLINT
+  std::ostringstream os;
+  if (line) os << file << ':' << line << '\n';
+  os << msg;
+  auto failure = os.str();
+  if (s == severity::fatal) {
+    FAIL(failure);
+  } else {
+    CAPTURE(failure);
+    CHECK(failure.empty());
+  }
+}
+}  // namespace trompeloeil
diff --git a/tests/src/mocks/openvr_mock.hpp b/tests/src/mocks/openvr_mock.hpp
index 83ec13827c371fd43eb7406175ab4393cb5867bd..38b02409278d868caf237b55a002dff137249a3e 100644
--- a/tests/src/mocks/openvr_mock.hpp
+++ b/tests/src/mocks/openvr_mock.hpp
@@ -36,7 +36,7 @@ SUPPRESS_WARNINGS_BEGIN
 #include "trompeloeil.hpp"
 SUPPRESS_WARNINGS_END
 
-#include "openvr_mock_export.hpp"
+#include "mocks/openvr_mock_export.hpp"
 
 using trompeloeil::_;
 
@@ -114,8 +114,9 @@ class OPENVR_MOCK_EXPORT IVRSystemMock : public IVRSystem {
   MAKE_MOCK3(GetControllerState, bool(vr::TrackedDeviceIndex_t,
                                       vr::VRControllerState_t*, uint32_t));
   MAKE_MOCK5(GetControllerStateWithPose,
-             bool(ETrackingUniverseOrigin, vr::TrackedDeviceIndex_t,
-                  vr::VRControllerState_t*, uint32_t, TrackedDevicePose_t*));
+             bool(vr::ETrackingUniverseOrigin, vr::TrackedDeviceIndex_t,
+                  vr::VRControllerState_t*, uint32_t,
+                  vr::TrackedDevicePose_t*));
   MAKE_MOCK3(TriggerHapticPulse,
              void(vr::TrackedDeviceIndex_t, uint32_t, unsigned short));
   MAKE_MOCK1(GetButtonIdNameFromEnum, const char*(EVRButtonId));
@@ -251,8 +252,6 @@ class OPENVR_MOCK_EXPORT IVRRenderModelsMock : public IVRRenderModels {
 
 }  // namespace vr
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class OPENVR_MOCK_EXPORT OpenVRMock {
  public:
   OpenVRMock()
@@ -270,7 +269,7 @@ class OPENVR_MOCK_EXPORT OpenVRMock {
   }
 
   OpenVRMock& operator=(const OpenVRMock&) = delete;
-  OpenVRMock& operator=(OpenVRMock&&) = default;
+  OpenVRMock& operator=(OpenVRMock&&) = delete;
 
   OpenVRMockInternal& Get() { return *mock_; }
   vr::IVRSystemMock& GetSystem() const { return *ivr_system_mock_; }
@@ -357,8 +356,6 @@ class OPENVR_MOCK_EXPORT OpenVRMock {
   vr::IVRRenderModelsMock* ivr_render_models_mock_;
 };
 
-SUPPRESS_WARNINGS_END
-
 extern OPENVR_MOCK_EXPORT OpenVRMock openvr_mock;
 
 #define OPENVR_MOCK_ALLOW_ANY_CALL                                             \
@@ -405,6 +402,24 @@ extern OPENVR_MOCK_EXPORT OpenVRMock openvr_mock;
               OpenVRMock::toHMDMatrix34_t(openvr_mock.l_cont_transformation_)) \
       .SIDE_EFFECT(_1[openvr_mock.index_left_controller_].bPoseIsValid =       \
                        true);                                                  \
+  ALLOW_CALL(openvr_mock.GetSystem(),                                          \
+             GetControllerStateWithPose(vr::TrackingUniverseStanding,          \
+                                        openvr_mock.index_right_controller_,   \
+                                        _, _, _))                              \
+      .RETURN(true)                                                            \
+      .SIDE_EFFECT(                                                            \
+          _5->mDeviceToAbsoluteTracking =                                      \
+              OpenVRMock::toHMDMatrix34_t(openvr_mock.r_cont_transformation_)) \
+      .SIDE_EFFECT(_5->bPoseIsValid = true);                                   \
+  ALLOW_CALL(                                                                  \
+      openvr_mock.GetSystem(),                                                 \
+      GetControllerStateWithPose(vr::TrackingUniverseStanding,                 \
+                                 openvr_mock.index_left_controller_, _, _, _)) \
+      .RETURN(true)                                                            \
+      .SIDE_EFFECT(                                                            \
+          _5->mDeviceToAbsoluteTracking =                                      \
+              OpenVRMock::toHMDMatrix34_t(openvr_mock.l_cont_transformation_)) \
+      .SIDE_EFFECT(_5->bPoseIsValid = true);                                   \
   ALLOW_CALL(openvr_mock.GetCompositor(), Submit(_, _, _, _))                  \
       .RETURN(vr::EVRCompositorError::VRCompositorError_None);                 \
   ALLOW_CALL(openvr_mock.Get(), VR_GetGenericInterface(_, _))                  \
@@ -451,6 +466,22 @@ extern OPENVR_MOCK_EXPORT OpenVRMock openvr_mock;
   ALLOW_CALL(openvr_mock.GetRenderModels(), LoadTexture_Async(_, _))           \
       .RETURN(vr::VRRenderModelError_None)                                     \
       .SIDE_EFFECT(*_2 = openvr_mock.CreateDummyTexture(                       \
-                       static_cast<unsigned int>(_1)));
+                       static_cast<unsigned int>(_1)));                        \
+  ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _)).RETURN(false);      \
+  ALLOW_CALL(openvr_mock.GetSystem(),                                          \
+             GetInt32TrackedDeviceProperty(_, vr::Prop_Axis0Type_Int32, _))    \
+      .RETURN(vr::k_eControllerAxis_None);                                     \
+  ALLOW_CALL(openvr_mock.GetSystem(),                                          \
+             GetInt32TrackedDeviceProperty(_, vr::Prop_Axis1Type_Int32, _))    \
+      .RETURN(vr::k_eControllerAxis_None);                                     \
+  ALLOW_CALL(openvr_mock.GetSystem(),                                          \
+             GetInt32TrackedDeviceProperty(_, vr::Prop_Axis2Type_Int32, _))    \
+      .RETURN(vr::k_eControllerAxis_None);                                     \
+  ALLOW_CALL(openvr_mock.GetSystem(),                                          \
+             GetInt32TrackedDeviceProperty(_, vr::Prop_Axis3Type_Int32, _))    \
+      .RETURN(vr::k_eControllerAxis_None);                                     \
+  ALLOW_CALL(openvr_mock.GetSystem(),                                          \
+             GetInt32TrackedDeviceProperty(_, vr::Prop_Axis4Type_Int32, _))    \
+      .RETURN(vr::k_eControllerAxis_None);
 
 #endif  // TESTS_SRC_MOCKS_OPENVR_MOCK_HPP_
diff --git a/tests/src/mocks/sdl_mock.cpp b/tests/src/mocks/sdl_mock.cpp
index 919ae46a7ece937b40f6c97ad5ccd936b21b35cb..3adf85769cb0e6a72a6723f7fbc1fce9e0bfc72f 100644
--- a/tests/src/mocks/sdl_mock.cpp
+++ b/tests/src/mocks/sdl_mock.cpp
@@ -33,8 +33,6 @@ SdlMock sdl_mock;
 #pragma clang diagnostic pop
 #endif
 
-extern template struct trompeloeil::reporter<trompeloeil::specialized>;
-
 extern "C" {
 int SDL_Init(Uint32 flags) { return sdl_mock.Get().SDL_Init(flags); }
 int SDL_InitSubSystem(Uint32 flags) {
diff --git a/tests/src/mocks/sdl_mock.hpp b/tests/src/mocks/sdl_mock.hpp
index c9146b5dda4c69339f0b10366da6f80b37acba15..1d00d1a68ce5b4aaf211871e66cb84680315e69b 100644
--- a/tests/src/mocks/sdl_mock.hpp
+++ b/tests/src/mocks/sdl_mock.hpp
@@ -31,7 +31,9 @@ SUPPRESS_WARNINGS_END
 
 #include "trompeloeil.hpp"
 
-class SdlMockInternal {
+#include "mocks/sdl_mock_export.hpp"
+
+class SDL_MOCK_EXPORT SdlMockInternal {
  public:
   MAKE_MOCK1(SDL_Init, int(Uint32 flags));  // NOLINT(readability/casting)
   MAKE_MOCK1(SDL_InitSubSystem,
@@ -55,7 +57,7 @@ class SdlMockInternal {
   MAKE_MOCK1(SDL_HideWindow, void(SDL_Window*));
 };
 
-class SdlMock {
+class SDL_MOCK_EXPORT SdlMock {
  public:
   SdlMock() : mock_(new SdlMockInternal) {}
   SdlMock(const SdlMock&) = delete;
@@ -64,7 +66,7 @@ class SdlMock {
   ~SdlMock() { delete mock_; }
 
   SdlMock& operator=(const SdlMock&) = delete;
-  SdlMock& operator=(SdlMock&&) = default;
+  SdlMock& operator=(SdlMock&&) = delete;
 
   SdlMockInternal& Get() { return *mock_; }
 
@@ -72,7 +74,7 @@ class SdlMock {
   SdlMockInternal* mock_{nullptr};
 };
 
-extern SdlMock sdl_mock;
+extern SDL_MOCK_EXPORT SdlMock sdl_mock;
 
 #define SDL_MOCK_ALLOW_ANY_CALL                                              \
   ALLOW_CALL(sdl_mock.Get(), SDL_Init(SDL_INIT_VIDEO)).RETURN(0);            \
diff --git a/tests/src/test-transform.cpp b/tests/src/test-transform.cpp
index 4f844065e07dc3a97702f34d9cb4cef598eb9e11..a35aea6909dd71327875cae8dd57c77a3cf11f0f 100644
--- a/tests/src/test-transform.cpp
+++ b/tests/src/test-transform.cpp
@@ -39,7 +39,7 @@ SUPPRESS_WARNINGS_END
 
 #include "test_utilities/glm_mat4.hpp"
 #include "test_utilities/glm_quat.hpp"
-#include "test_utilities/glm_vec3.hpp"
+#include "test_utilities/glm_vec.hpp"
 #include "test_utilities/log_capture.hpp"
 
 SCENARIO(
@@ -266,58 +266,6 @@ SCENARIO(
 SCENARIO(
     "The transform component enables hierarchical arrangement of transforms.",
     "[phx][phx::Transform]") {
-  GIVEN("Two entities in a scene with transform components.") {
-    auto scene = std::make_shared<phx::Scene>();
-    auto entity1 = scene->CreateEntity();
-    auto entity2 = scene->CreateEntity();
-    phx::Transform* child = entity1->AddComponent<phx::Transform>();
-    phx::Transform* parent = entity2->AddComponent<phx::Transform>();
-
-    WHEN("We query the first transform's parent.") {
-      auto parent_ptr = child->GetParent();
-      THEN("It should be nullptr.") { REQUIRE(parent_ptr == nullptr); }
-    }
-
-    WHEN("We set the first transform's parent to the second.") {
-      child->SetParent(parent);
-
-      WHEN("We query the first transform's parent.") {
-        auto parent_ptr = child->GetParent();
-        THEN("It should equal the second transform.") {
-          REQUIRE(parent_ptr == parent);
-        }
-      }
-
-      WHEN("We query the second transform's child count.") {
-        auto child_count = parent->GetChildCount();
-        THEN("Its size should equal 1.") { REQUIRE(child_count == 1); }
-      }
-
-      WHEN("We query the second transform's first child.") {
-        auto child_ptr = parent->GetChild(0);
-        THEN("It should equal the first transform.") {
-          REQUIRE(child_ptr == child);
-        }
-      }
-
-      WHEN("We iterate the second transform's children.") {
-        auto iteration_count = 0;
-        for (auto it = parent->begin(); it != parent->end(); ++it)
-          iteration_count++;
-        THEN("It should consist of a single iteration.") {
-          REQUIRE(iteration_count == 1);
-        }
-      }
-
-      WHEN("We set the first transform's parent to nullptr.") {
-        child->SetParent(nullptr);
-        WHEN("We query the transform's parent.") {
-          auto parent_ptr = child->GetParent();
-          THEN("It should be nullptr.") { REQUIRE(parent_ptr == nullptr); }
-        }
-      }
-    }
-  }
   GIVEN("A hierarchy of transforms: A( B, C( D ) )") {
     auto scene = std::make_shared<phx::Scene>();
     auto entity1 = scene->CreateEntity();
diff --git a/tests/src/test_assimp_loader.cpp b/tests/src/test_assimp_loader.cpp
index 16626f0aa7b5c5dc8cf2f39d99cee75eea8f4fc9..9711390663d673f35d6679ec15e424b86642a565 100644
--- a/tests/src/test_assimp_loader.cpp
+++ b/tests/src/test_assimp_loader.cpp
@@ -26,14 +26,18 @@
 
 #include "catch/catch.hpp"
 
+#include "mocks/opengl_mock.hpp"
+
 #include "phx/core/logger.hpp"
-#include "phx/resources/types/mesh.hpp"
 #include "phx/resources/loaders/assimp_model_loader.hpp"
 #include "phx/resources/resource_utils.hpp"
+#include "phx/resources/types/mesh.hpp"
 #include "phx/utility/aspects/nameable.hpp"
 
 #include "test_utilities/log_capture.hpp"
 
+extern template struct trompeloeil::reporter<trompeloeil::specialized>;
+
 class TestLogger {
  public:
   TestLogger() : log_capture_{std::make_shared<test_utilities::LogCapture>()} {
@@ -49,6 +53,7 @@ class TestLogger {
 
 SCENARIO("The assimp loader loads models using the Assimp library.",
          "[phx][phx::AssimpLoader]") {
+  OPENGL_MOCK_ALLOW_ANY_CALL
   GIVEN("A plain loader") {
     phx::CreateDefaultLogger();
     TestLogger test_logger;
diff --git a/tests/src/test_behavior_system.cpp b/tests/src/test_behavior_system.cpp
index d7ce2e41fd95c38264588fbf57f7614c612dd97a..3584faecc25b600396331f84b53e838953f55c77 100644
--- a/tests/src/test_behavior_system.cpp
+++ b/tests/src/test_behavior_system.cpp
@@ -21,15 +21,17 @@
 //------------------------------------------------------------------------------
 
 #include <memory>
-#include <vector>
 
 #include "catch/catch.hpp"
 #include "trompeloeil.hpp"
 
 #include "phx/core/engine.hpp"
+#include "phx/core/logger.hpp"
 #include "phx/core/scene.hpp"
 #include "phx/scripting/behavior.hpp"
 #include "phx/scripting/behavior_system.hpp"
+#include "phx/scripting/generic_behavior.hpp"
+#include "test_utilities/log_capture.hpp"
 
 extern template struct trompeloeil::reporter<trompeloeil::specialized>;
 
@@ -50,10 +52,11 @@ SCENARIO(
     auto scene = std::make_shared<phx::Scene>();
     engine.SetScene(scene);
     auto entity = scene->CreateEntity();
-    auto behavior = entity->AddComponent<BehaviorMock>();
 
-    WHEN("We create a behavior system.") {
-      auto behavior_system = engine.CreateSystem<phx::BehaviorSystem>();
+    auto behavior_system = engine.CreateSystem<phx::BehaviorSystem>();
+
+    WHEN("We create a mocked behavior") {
+      auto behavior = entity->AddComponent<BehaviorMock>();
       WHEN("We update the behavior system 10 times.") {
         REQUIRE_CALL(*behavior, OnUpdate()).TIMES(10);
         for (auto i = 0; i < 10; ++i)
@@ -62,3 +65,49 @@ SCENARIO(
     }
   }
 }
+SCENARIO("we can have generic behaviors", "[phx][phx::GenericBehavior]") {
+  GIVEN("An engine with a behavior system and an entity") {
+    phx::Engine engine;
+    auto scene = std::make_shared<phx::Scene>();
+    engine.SetScene(scene);
+    auto entity = scene->CreateEntity();
+    auto behavior_system = engine.CreateSystem<phx::BehaviorSystem>();
+
+    WHEN("We create a generic behavior") {
+      bool onConstructionCalled = false;
+      bool onUpdateCalled = false;
+      entity->AddComponent<phx::GenericBehavior>(
+          [&onConstructionCalled](phx::Entity*) {
+            onConstructionCalled = true;
+          },
+          [&onUpdateCalled](const phx::FrameTimer::TimeInfo*, phx::Entity*) {
+            onUpdateCalled = true;
+          });
+      THEN("onConstruction should be called, but no onUpdate yet") {
+        REQUIRE(onConstructionCalled);
+        REQUIRE_FALSE(onUpdateCalled);
+        WHEN("The behavior system is updated") {
+          behavior_system->Update(phx::FrameTimer::TimeInfo());
+          THEN("onUpdate is also called") {
+            REQUIRE(onConstructionCalled);
+            REQUIRE(onUpdateCalled);
+          }
+        }
+      }
+    }
+    WHEN("We we name a generic behavior") {
+      auto behavior = entity->AddComponent<phx::GenericBehavior>(
+          [](phx::Entity*) {},
+          [](const phx::FrameTimer::TimeInfo*, phx::Entity*) {}, "GenericName");
+      THEN("it is loggable") {
+        auto log_capture = std::make_shared<test_utilities::LogCapture>();
+        phx::logger =
+            std::make_shared<spdlog::logger>("logcapture", log_capture);
+        phx::logger->set_pattern("%v");
+
+        phx::info("{}", *behavior);
+        REQUIRE(*log_capture == "GenericBehavior: GenericName");
+      }
+    }
+  }
+}
diff --git a/tests/src/test_clear_pass.cpp b/tests/src/test_clear_pass.cpp
index 2a8322c1a6361b681b86398e5a18b4d0df0f2a40..dce48d4c421761b0d77d5e3b5f087f061f54d827 100644
--- a/tests/src/test_clear_pass.cpp
+++ b/tests/src/test_clear_pass.cpp
@@ -20,8 +20,6 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#include "catch/catch.hpp"
-
 #include "phx/suppress_warnings.hpp"
 
 SUPPRESS_WARNINGS_BEGIN
@@ -31,11 +29,13 @@ SUPPRESS_WARNINGS_END
 
 #include "trompeloeil.hpp"
 
-#include "mocks/opengl_mock.hpp"
+#include "catch/catch.hpp"
 
 #include "phx/rendering/backend/render_target.hpp"
 #include "phx/rendering/render_passes/clear_pass.hpp"
 
+#include "mocks/opengl_mock.hpp"
+
 extern template struct trompeloeil::reporter<trompeloeil::specialized>;
 
 SCENARIO("The clear pass clears the active color and depth buffers.",
diff --git a/tests/src/test_device_system.cpp b/tests/src/test_device_system.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..dc5b0401fcbaf186a710783e4bc007b8187bb31f
--- /dev/null
+++ b/tests/src/test_device_system.cpp
@@ -0,0 +1,83 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include <memory>
+
+#include "catch/catch.hpp"
+
+#include "trompeloeil.hpp"
+
+#include "phx/core/engine.hpp"
+#include "phx/input/device.hpp"
+#include "phx/input/device_system.hpp"
+
+using trompeloeil::_;
+using trompeloeil::ne;
+
+extern template struct trompeloeil::reporter<trompeloeil::specialized>;
+
+class MockDevice : public phx::Device {
+ public:
+  MAKE_MOCK0(Update, void());
+};
+
+class MockDevice2 : public MockDevice {
+ public:
+  MAKE_MOCK0(Update, void());
+};
+
+SCENARIO("The device system manages and updates its devices",
+         "[phx][phx::DeviceSystem]") {
+  GIVEN("an device system") {
+    phx::Engine engine;
+    auto device_system = engine.CreateSystem<phx::DeviceSystem>();
+
+    WHEN("We add devices") {
+      MockDevice* device1 = device_system->AddDevice<MockDevice>();
+      MockDevice2* device2 = device_system->AddDevice<MockDevice2>();
+
+      THEN("their update method is called when the system is updated") {
+        REQUIRE_CALL(*device1, Update()).TIMES(1);
+        REQUIRE_CALL(*device2, Update()).TIMES(1);
+        device_system->Update(phx::FrameTimer::TimeInfo());
+      }
+
+      THEN("we can get these devices by type") {
+        auto devices = device_system->GetDevices<MockDevice>();
+        REQUIRE(devices.size() == 2);
+        REQUIRE(std::find(devices.begin(), devices.end(), device1) !=
+                devices.end());
+        REQUIRE(std::find(devices.begin(), devices.end(), device2) !=
+                devices.end());
+
+        auto devices2 = device_system->GetDevices<MockDevice2>();
+        REQUIRE(devices2.size() == 1);
+        REQUIRE(devices2[0] == device2);
+      }
+
+      THEN("devices can be removed again") {
+        device_system->RemoveDevice(device1);
+        REQUIRE(device_system->GetDevices<MockDevice>().size() == 1);
+      }
+    }
+  }
+}
diff --git a/tests/src/test_generic_material_loader.cpp b/tests/src/test_generic_material_loader.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ed93d866e6ebb02e73eb6c0dda4466c517242983
--- /dev/null
+++ b/tests/src/test_generic_material_loader.cpp
@@ -0,0 +1,90 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include "catch/catch.hpp"
+
+#include "phx/resources/resource_utils.hpp"
+#include "phx/resources/types/material.hpp"
+
+#include "test_utilities/glm_vec.hpp"
+
+SCENARIO("The Generic Material Loader can create Generic materials.",
+         "[phx][phx::GenericMaterialLoader]") {
+  GIVEN("A plain Generic Material Loader") {
+    WHEN("We load a red material") {
+      auto materialResource = phx::ResourceUtils::LoadGenericMaterial(
+          "generic_material", glm::vec3(1.f, 0.f, 0.f));
+
+      THEN("We have a material with the given name") {
+        REQUIRE(materialResource != nullptr);
+        REQUIRE(materialResource->GetName() == "generic_material");
+      }
+
+      THEN(
+          "The material is red, and specular color, ambient color and "
+          "shininess are set to default values.") {
+        auto diffuseColor = materialResource->GetDiffuseColor();
+        REQUIRE(diffuseColor == glm::vec3(1.0, 0.0, 0.0));
+
+        auto specularColor = materialResource->GetSpecularColor();
+        auto specularColorDefault =
+            phx::Material::GetDefault()->GetSpecularColor();
+        REQUIRE(specularColor == specularColorDefault);
+
+        auto ambientColor = materialResource->GetAmbientColor();
+        auto ambientColorDefault =
+            phx::Material::GetDefault()->GetAmbientColor();
+        REQUIRE(ambientColor == ambientColorDefault);
+
+        float shininess = materialResource->GetShininess();
+        REQUIRE(shininess == 64.0f);  //  default shininess value
+      }
+    }
+
+    WHEN(
+        "We load a different, more exotic material with some arbitrary "
+        "values") {
+      auto secondMaterial = phx::ResourceUtils::LoadGenericMaterial(
+          "generic_material_2", glm::vec3(0.4f, 0.3f, 0.55f),
+          glm::vec3(0.48f, 0.42f, 0.88f), glm::vec3(0.11f, 0.94f, 0.73f), 40.f);
+
+      THEN("We still get a material with the given name") {
+        REQUIRE(secondMaterial != nullptr);
+        REQUIRE(secondMaterial->GetName() == "generic_material_2");
+      }
+
+      THEN("All the values in the material are set to the right value.") {
+        auto diffuseColor = secondMaterial->GetDiffuseColor();
+        REQUIRE(diffuseColor == glm::vec3(0.4f, 0.3f, 0.55f));
+
+        auto specularColor = secondMaterial->GetSpecularColor();
+        REQUIRE(specularColor == glm::vec3(0.48f, 0.42f, 0.88f));
+
+        auto ambientColor = secondMaterial->GetAmbientColor();
+        REQUIRE(ambientColor == glm::vec3(0.11f, 0.94f, 0.73f));
+
+        float shininess = secondMaterial->GetShininess();
+        REQUIRE(shininess == 40.f);
+      }
+    }
+  }
+}
diff --git a/tests/src/test_hierarchical.cpp b/tests/src/test_hierarchical.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..30a8437b52c98be02d0898aa12c141d7df807aff
--- /dev/null
+++ b/tests/src/test_hierarchical.cpp
@@ -0,0 +1,97 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include <cstddef>
+
+#include <memory>
+
+#include "catch/catch.hpp"
+
+#include "phx/utility/aspects/hierarchical.hpp"
+
+class SomeHierarchical : public phx::Hierarchical<SomeHierarchical> {};
+
+SCENARIO("The hierarchical has parents and childs.",
+         "[phx][phx::Hierarchical]") {
+  GIVEN("Two hierarchical objects.") {
+    auto child = std::make_unique<SomeHierarchical>();
+    auto parent = std::make_unique<SomeHierarchical>();
+    WHEN("We query the first transform's parent.") {
+      auto parent_ptr = child->GetParent();
+      THEN("It should be nullptr.") { REQUIRE(parent_ptr == nullptr); }
+    }
+
+    WHEN("We set the first hierarchical's parent to the second.") {
+      child->SetParent(parent.get());
+
+      WHEN("We query the first hierarchical's parent.") {
+        auto parent_ptr = child->GetParent();
+        THEN("It should equal the second hierarchical.") {
+          REQUIRE(parent_ptr == parent.get());
+        }
+      }
+
+      WHEN("We query the second hierarchical's child count.") {
+        auto child_count = parent->GetChildCount();
+        THEN("Its size should equal 1.") { REQUIRE(child_count == 1); }
+      }
+
+      WHEN("We query the second hierarchical's first child.") {
+        auto child_ptr = parent->GetChild(0);
+        THEN("It should equal the first hierarchical.") {
+          REQUIRE(child_ptr == child.get());
+        }
+      }
+
+      WHEN("We iterate the second hierarchical's children.") {
+        auto iteration_count = 0;
+        for (auto it = parent->begin(); it != parent->end(); ++it)
+          iteration_count++;
+        THEN("It should consist of a single iteration.") {
+          REQUIRE(iteration_count == 1);
+        }
+      }
+
+      WHEN("We set the first hierarchical's parent to nullptr.") {
+        child->SetParent(nullptr);
+        WHEN("We query the hierarchical's parent.") {
+          auto parent_ptr = child->GetParent();
+          THEN("It should be nullptr.") { REQUIRE(parent_ptr == nullptr); }
+        }
+      }
+
+      WHEN("We destroy the child.") {
+        child.reset();
+        THEN("The parent has no more children.") {
+          REQUIRE(parent->GetChildCount() == 0);
+        }
+      }
+
+      WHEN("We destroy the parent.") {
+        parent.reset();
+        THEN("The child has no more parent.") {
+          REQUIRE(child->GetParent() == nullptr);
+        }
+      }
+    }
+  }
+}
diff --git a/tests/src/test_material.cpp b/tests/src/test_material.cpp
index 34f0552562a062641b060f9d222b54c5058fecda..93eb5ccb3eb8442d7417c346af9bea174c996904 100644
--- a/tests/src/test_material.cpp
+++ b/tests/src/test_material.cpp
@@ -29,7 +29,7 @@
 #include "phx/core/logger.hpp"
 #include "phx/rendering/components/material_handle.hpp"
 
-#include "test_utilities/glm_vec3.hpp"
+#include "test_utilities/glm_vec.hpp"
 
 SCENARIO("The material component keeps track of its attributes",
          "[phx][phx::Material]") {
@@ -42,7 +42,7 @@ SCENARIO("The material component keeps track of its attributes",
       REQUIRE(material.GetAmbientColor() == glm::vec3(0, 0, 0));
       REQUIRE(material.GetSpecularColor() == glm::vec3(1, 1, 1));
       REQUIRE(material.GetDiffuseColor() == glm::vec3(1, 0, 0));
-      REQUIRE(material.GetShininess() == 1.0f);
+      REQUIRE(material.GetShininess() == 64.0f);
     }
     WHEN("we assign it to be some other material") {
       glm::vec3 blue(0, 0, 1), white(1, 1, 1), green(0, 1, 0);
diff --git a/tests/src/test_model.cpp b/tests/src/test_model.cpp
index 7098d7ca52f01c7dec6872d7a815ff80aee976b3..883d5e3b09fff45fb85c2f552b266b76073d4cdd 100644
--- a/tests/src/test_model.cpp
+++ b/tests/src/test_model.cpp
@@ -25,12 +25,18 @@
 #include "catch/catch.hpp"
 
 #include "phx/resources/loaders/assimp_model_loader.hpp"
-#include "phx/resources/types/model.hpp"
 #include "phx/resources/resource_manager.hpp"
 #include "phx/resources/resource_utils.hpp"
+#include "phx/resources/types/model.hpp"
+
+#include "mocks/opengl_mock.hpp"
+#include "trompeloeil.hpp"
+
+extern template struct trompeloeil::reporter<trompeloeil::specialized>;
 
 SCENARIO("A Model can be loaded that contains multiple meshes",
          "[phx][phx::Model]") {
+  OPENGL_MOCK_ALLOW_ANY_CALL
   GIVEN("A fresh resource manager...") {
     GIVEN("A file name of an .obj file...") {
       std::string model_file_name{"models/2MeshTest/2meshTest.obj"};
diff --git a/tests/src/test_openvr_controller_system.cpp b/tests/src/test_openvr_controller_model_system.cpp
similarity index 86%
rename from tests/src/test_openvr_controller_system.cpp
rename to tests/src/test_openvr_controller_model_system.cpp
index 0b2987fe9e6899e0ed6e1434137415228c94a054..1a90a5d68a079ee0d76f4d212626d0083e456326 100644
--- a/tests/src/test_openvr_controller_system.cpp
+++ b/tests/src/test_openvr_controller_model_system.cpp
@@ -34,9 +34,9 @@ SUPPRESS_WARNINGS_END
 
 #include "phx/core/entity.hpp"
 #include "phx/core/scene.hpp"
-#include "phx/display/display_system_openvr.hpp"
-#include "phx/input/openvr_controller_behavior.hpp"
-#include "phx/input/openvr_controller_system.hpp"
+#include "phx/input/device_system.hpp"
+#include "phx/input/openvr_controller_model_system.hpp"
+#include "phx/input/vr_controller.hpp"
 #include "phx/rendering/components/material_handle.hpp"
 #include "phx/rendering/components/mesh_handle.hpp"
 #include "phx/rendering/rendering_system.hpp"
@@ -73,23 +73,23 @@ class EngineStopTestSystem : public phx::System {
 SCENARIO(
     "The OpenVRControllerSystem automatically inserts controller entities into "
     "a scene if controllers are connected",
-    "[phx][phx::OpenVRControllerSystem]") {
+    "[phx][phx::OpenVRControllerModelSystem]") {
   OPENGL_MOCK_ALLOW_ANY_CALL;
   OPENVR_MOCK_ALLOW_ANY_CALL;
   SDL_MOCK_ALLOW_ANY_CALL;
 
   phx::Engine engine;
-  auto display_system = engine.CreateSystem<phx::DisplaySystemOpenVR>();
+  auto device_system = engine.CreateSystem<phx::DeviceSystem>();
 
-  GIVEN(
-      "The display system has an HMD and the engine has a scene. Also, there's "
-      "an OpenVRControllerSystem.") {
-    display_system->CreateHMD();
+  GIVEN("a device system with two vr controllers") {
+    device_system->AddDevice<phx::VRController>(
+        phx::VRController::LEFT_CONTROLLER);
+    device_system->AddDevice<phx::VRController>(
+        phx::VRController::RIGHT_CONTROLLER);
     auto scene = std::make_shared<phx::Scene>();
     engine.SetScene(scene);
-    engine.CreateSystem<phx::OpenVRControllerSystem>(display_system);
+    engine.CreateSystem<phx::OpenVRControllerModelSystem>(device_system);
     engine.CreateSystem<EngineStopTestSystem>();
-    engine.CreateSystem<phx::RenderingSystem>(display_system);
 
     WHEN("We run the engine for once frame (updating each system once)") {
       engine.Run();
diff --git a/tests/src/test_resource_utils.cpp b/tests/src/test_resource_utils.cpp
index d2b0a9bb82b807735219581322600fec1e1c6e26..1da8fcab9e8789cba8a6a11d1a0261b45dc8aa36 100644
--- a/tests/src/test_resource_utils.cpp
+++ b/tests/src/test_resource_utils.cpp
@@ -20,15 +20,27 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
+#include <fstream>
 #include <string>
 
 #include "catch/catch.hpp"
 
-#include "phx/resources/types/image.hpp"
 #include "phx/resources/resource_declaration.hpp"
 #include "phx/resources/resource_utils.hpp"
+#include "phx/resources/types/image.hpp"
 #include "phx/resources_path.hpp"
 
+namespace {
+void CreateDummyFile(const std::string &file_name) {
+  std::fstream out_file(file_name.c_str(), std::ios::out);
+  // force fail test if file could not be created
+  REQUIRE(out_file.is_open());
+}
+void DeleteDummyFile(const std::string &file_name) {
+  std::remove(file_name.c_str());
+}
+}  // namespace
+
 SCENARIO("Resource utils can extract file extensions.",
          "[phx][phx::ResourceUtils]") {
   GIVEN("A file name") {
@@ -56,17 +68,19 @@ SCENARIO("Resource utils can declarare a file resource.",
   GIVEN("A file name with absolute path") {
     std::string file_name{"C:/some_path/to/file.34.ext"};
 
-    THEN("It can declare it") {
+    THEN("we get a declaration with a valid (unmodified) file name") {
       phx::ResourceDeclaration declaration =
           phx::ResourceUtils::DeclarationFromFile(file_name, {}, true);
       REQUIRE(declaration["TYPE"] == ".ext");
       REQUIRE(declaration["file_name"] == file_name);
     }
   }
-  GIVEN("A file name with relative path") {
-    std::string file_name{"file.png"};
+  GIVEN("A file name and a search path") {
+    std::string file_name{"textures/splash_progress.png"};
 
-    THEN("It can declare it") {
+    THEN(
+        "we get a declaration with a valid file name that has been pre-pended "
+        "by the first hit in the search path") {
       phx::ResourceDeclaration declaration =
           phx::ResourceUtils::DeclarationFromFile(file_name);
       REQUIRE(declaration["TYPE"] == ".png");
@@ -74,11 +88,11 @@ SCENARIO("Resource utils can declarare a file resource.",
     }
   }
   GIVEN("Additional key, value pairs are provided") {
-    std::string file_name{"file.png"};
+    std::string file_name{"textures/splash_progress.png"};
     std::string key = "some_key";
     int value = 42;
 
-    THEN("these are in the resulting declaration") {
+    THEN("the resulting declaration contains them") {
       phx::ResourceDeclaration declaration =
           phx::ResourceUtils::DeclarationFromFile(file_name, {{key, value}},
                                                   false);
@@ -87,9 +101,26 @@ SCENARIO("Resource utils can declarare a file resource.",
   }
 }
 
+SCENARIO("Resource utils find file resource outside the original search path",
+         "[phx][phx::ResourceUtils]") {
+  GIVEN("A file outside the original resource tree") {
+    std::string dummy_file = "dummy.txt";
+    std::string offset_search_path = "../";
+    ::CreateDummyFile(offset_search_path + dummy_file);
+
+    phx::ResourceUtils::AddResourceSearchPath(offset_search_path);
+    THEN("the file is found and a valid declaration is returned") {
+      phx::ResourceDeclaration declaration =
+          phx::ResourceUtils::DeclarationFromFile(dummy_file, {}, false);
+      CHECK(declaration["file_name"] == offset_search_path + dummy_file);
+      ::DeleteDummyFile(offset_search_path + dummy_file);
+    }
+  }
+}
+
 SCENARIO("Resource utils can load a file resource.",
          "[phx][phx::ResourceUtils]") {
-  GIVEN("A file name") {
+  GIVEN("A file name within the original resource tree") {
     std::string file_name{"textures/splash_progress.png"};
 
     THEN("It can load it") {
diff --git a/tests/src/test_scene_loader.cpp b/tests/src/test_scene_loader.cpp
index 1e69d84c692c57071f22d50d69d4df46bfe838d0..fefb838b4ec2a5fc8a0fd742f22ce9d624b754b9 100644
--- a/tests/src/test_scene_loader.cpp
+++ b/tests/src/test_scene_loader.cpp
@@ -30,7 +30,13 @@
 #include "phx/rendering/components/transform.hpp"
 #include "phx/resources/loaders/scene_loader.hpp"
 
+#include "mocks/opengl_mock.hpp"
+#include "trompeloeil.hpp"
+
+extern template struct trompeloeil::reporter<trompeloeil::specialized>;
+
 SCENARIO("The scene loader can load a model", "[phx][phx::SceneLoader]") {
+  OPENGL_MOCK_ALLOW_ANY_CALL
   GIVEN("An empty scene") {
     phx::Scene scene;
     WHEN("We load a model into the scene") {
diff --git a/tests/src/test_tracked_device.cpp b/tests/src/test_tracked_device.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..3166d86284093d5bb116345a8e69eeabdc5d2731
--- /dev/null
+++ b/tests/src/test_tracked_device.cpp
@@ -0,0 +1,135 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include <memory>
+
+#include "catch/catch.hpp"
+
+#include "phx/display/hmd.hpp"
+#include "phx/input/tracked_device.hpp"
+#include "phx/input/vr_controller.hpp"
+
+#include "mocks/openvr_mock.hpp"
+
+#include "trompeloeil.hpp"
+
+#undef _
+
+extern template struct trompeloeil::reporter<trompeloeil::specialized>;
+using trompeloeil::_;
+
+SCENARIO("OpenVR is only initialized and shutdown once",
+         "[phx][phx::TrackedDevice]") {
+  OPENVR_MOCK_ALLOW_ANY_CALL
+
+  WHEN("we initialize 2 derrived tracked devices") {
+    THEN("openVR is initialized exactly once") {
+      REQUIRE_CALL(openvr_mock.Get(),
+                   VR_InitInternal2(_, vr::VRApplication_Scene, _))
+          .TIMES(1)
+          .RETURN(static_cast<uint32_t>(1337))
+          .SIDE_EFFECT(*_1 = vr::VRInitError_None);
+      auto device1 = std::make_unique<phx::HMD>();
+      auto device2 = std::make_unique<phx::VRController>(
+          phx::VRController::LEFT_CONTROLLER);
+
+      WHEN("we destroy one") {
+        THEN("openVR shutdown is not called") {
+          FORBID_CALL(openvr_mock.Get(), VR_ShutdownInternal());
+          device1.reset();
+          WHEN("we destroy the second one") {
+            THEN("openVR shutdown is called") {
+              REQUIRE_CALL(openvr_mock.Get(), VR_ShutdownInternal()).TIMES(1);
+              device2.reset();
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+#define ALLOW_EVENT_POLL_CALLS                             \
+  ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _)) \
+      .SIDE_EFFECT(*_1 = event)                            \
+      .SIDE_EFFECT(*first_call = false)                    \
+      .WITH(*first_call == true)                           \
+      .RETURN(true);                                       \
+  ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _)) \
+      .WITH(*first_call == false)                          \
+      .RETURN(false);
+
+class ActualDevice : public phx::TrackedDevice {
+ public:
+  ActualDevice() : TrackedDevice() { id_ = 1; }
+  void Update() override { TrackedDevice::Update(); }
+  void UpdateDeviceIndex() override {}
+  MAKE_MOCK1(OnOpenVREvent, void(const vr::VREvent_t&));
+};
+
+SCENARIO("OpenVR events are forwarded as signals to all tracked devices",
+         "[phx][phx::TrackedDevice]") {
+  OPENVR_MOCK_ALLOW_ANY_CALL
+  GIVEN("a derrived tracked device and some OpenVR event") {
+    auto device = std::make_unique<ActualDevice>();
+
+    auto first_call = std::make_shared<bool>(true);
+    vr::VREvent_t event;
+    event.eventType = vr::EVREventType::VREvent_ButtonPress;
+    WHEN("Update is called") {
+      THEN("OnOpenVREvent is called") {
+        *first_call = true;
+        ALLOW_EVENT_POLL_CALLS
+        REQUIRE_CALL(*device, OnOpenVREvent(_))
+            .WITH(_1.eventType == vr::EVREventType::VREvent_ButtonPress);
+
+        device->Update();
+      }
+    }
+    WHEN("we create a second device") {
+      auto device2 = std::make_unique<ActualDevice>();
+      THEN("the onOpenVREvent is called for both devices") {
+        *first_call = true;
+        ALLOW_EVENT_POLL_CALLS
+        REQUIRE_CALL(*device, OnOpenVREvent(_))
+            .WITH(_1.eventType == vr::EVREventType::VREvent_ButtonPress);
+        REQUIRE_CALL(*device2, OnOpenVREvent(_))
+            .WITH(_1.eventType == vr::EVREventType::VREvent_ButtonPress);
+        device->Update();
+        device2->Update();
+
+        WHEN("the first device is deleted") {
+          device.reset();
+          THEN("the second device still gets the event") {
+            *first_call = true;
+            ALLOW_EVENT_POLL_CALLS
+            REQUIRE_CALL(*device2, OnOpenVREvent(_))
+                .WITH(_1.eventType == vr::EVREventType::VREvent_ButtonPress);
+            device2->Update();
+          }
+        }
+      }
+    }
+  }
+}
+
+// the pose etc. is tested in integration_test_hmd
diff --git a/tests/src/test_tracking_system.cpp b/tests/src/test_tracking_system.cpp
index 44124c76815edf17b45827619708cb257c698973..40de8072af27d14242bdd5fca156463bedf50692 100644
--- a/tests/src/test_tracking_system.cpp
+++ b/tests/src/test_tracking_system.cpp
@@ -27,6 +27,7 @@
 
 #include "trompeloeil.hpp"
 
+#include "phx/display/hmd.hpp"
 #include "phx/suppress_warnings.hpp"
 
 SUPPRESS_WARNINGS_BEGIN
@@ -37,7 +38,7 @@ SUPPRESS_WARNINGS_END
 #include "phx/core/entity.hpp"
 #include "phx/core/runtime_component.hpp"
 #include "phx/core/scene.hpp"
-#include "phx/display/display_system_openvr.hpp"
+#include "phx/input/device_system.hpp"
 #include "phx/rendering/components/projection.hpp"
 #include "phx/rendering/components/transform.hpp"
 #include "phx/tracking/tracking_system_openvr.hpp"
@@ -325,12 +326,17 @@ SCENARIO(
   SDL_MOCK_ALLOW_ANY_CALL;
 
   phx::Engine engine;
-  auto display_system = engine.CreateSystem<phx::DisplaySystemOpenVR>();
+  auto device_system = engine.CreateSystem<phx::DeviceSystem>();
 
   GIVEN(
       "The display system has an HMD and the engine has a scene with a "
       "user platform.") {
-    display_system->CreateHMD();
+    device_system->AddDevice<phx::HMD>();
+    device_system->AddDevice<phx::VRController>(
+        phx::VRController::LEFT_CONTROLLER);
+    device_system->AddDevice<phx::VRController>(
+        phx::VRController::RIGHT_CONTROLLER);
+    device_system->Update(phx::FrameTimer::TimeInfo());
     auto first_scene = std::make_shared<phx::Scene>();
     engine.SetScene(first_scene);
     auto platform_trans_mat =
@@ -339,7 +345,7 @@ SCENARIO(
     ::SetPlatformMatrix(first_scene.get(), platform_trans_mat);
     WHEN("A tracking system is created and initialized.") {
       auto tracking_system =
-          engine.CreateSystem<phx::TrackingSystemOpenVR>(display_system);
+          engine.CreateSystem<phx::TrackingSystemOpenVR>(device_system);
 
       ::TestRuntimeEntityStructure(first_scene);
       ::TestRuntimeEntityUpdate(first_scene, tracking_system);
diff --git a/tests/src/test_vr_controller.cpp b/tests/src/test_vr_controller.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..052a8ddd02495dd5a2902655c8b75a8a8ab5b182
--- /dev/null
+++ b/tests/src/test_vr_controller.cpp
@@ -0,0 +1,166 @@
+//------------------------------------------------------------------------------
+// Project Phoenix
+//
+// Copyright (c) 2017-2018 RWTH Aachen University, Germany,
+// Virtual Reality & Immersive Visualization Group.
+//------------------------------------------------------------------------------
+//                                 License
+//
+// Licensed under the 3-Clause BSD License (the "License");
+// you may not use this file except in compliance with the License.
+// See the file LICENSE for the full text.
+// You may obtain a copy of the License at
+//
+//     https://opensource.org/licenses/BSD-3-Clause
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//------------------------------------------------------------------------------
+
+#include <memory>
+#include <string>
+
+#include "catch/catch.hpp"
+
+#include "phx/core/logger.hpp"
+#include "phx/input/vr_controller.hpp"
+
+#include "mocks/openvr_mock.hpp"
+
+#include "test_utilities/glm_vec.hpp"
+#include "test_utilities/log_capture.hpp"
+
+#include "trompeloeil.hpp"
+
+extern template struct trompeloeil::reporter<trompeloeil::specialized>;
+using trompeloeil::_;
+
+namespace {
+
+auto first_call = std::make_shared<bool>(true);
+
+void CheckForButtonEvent(uint32_t openVR_event_type,
+                         phx::VRController::ButtonEvent vr_cont_event,
+                         uint32_t button_id, const std::string& side,
+                         bool expect_to_fire,
+                         phx::VRController* vr_controller) {
+  WHEN("a " + side +
+       " openVR event (type: " + std::to_string(openVR_event_type) +
+       " button id: " + std::to_string(button_id) + " is fired") {
+    vr::VREvent_t event;
+    event.eventType = openVR_event_type;
+    event.data.controller.button = button_id;
+    event.trackedDeviceIndex =
+        (side == "left" ? 2    // in the mock 2 is given to the left controller
+                        : 1);  // in the mock 1 is given to the right controller
+    *first_call = true;
+    ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _))
+        .SIDE_EFFECT(*_1 = event)
+        .SIDE_EFFECT(*first_call = false)
+        .WITH(*first_call == true)
+        .RETURN(true);
+    ALLOW_CALL(openvr_mock.GetSystem(), PollNextEvent(_, _))
+        .WITH(*first_call == false)
+        .RETURN(false);
+    THEN("we expect the signal to " + (expect_to_fire ? "" : "not") + " fire") {
+      bool signal_fired = false;
+      vr_controller->RegisterButtonSignal(
+          [&signal_fired, vr_cont_event, button_id](
+              phx::VRController::ButtonId id,
+              phx::VRController::ButtonEvent input_event) {
+            if (input_event == vr_cont_event &&
+                id == static_cast<phx::VRController::ButtonId>(button_id))
+              signal_fired = true;
+          });
+      vr_controller->Update();
+      REQUIRE(signal_fired == expect_to_fire);
+    }
+  }
+}
+}  // namespace
+
+SCENARIO("Button click events of openVR get forwarded as signals",
+         "[phx][phx::VRController]") {
+  OPENVR_MOCK_ALLOW_ANY_CALL
+  GIVEN("a VRController") {
+    auto vr_controller =
+        std::make_unique<phx::VRController>(phx::VRController::LEFT_CONTROLLER);
+    THEN("all button events are mapped correctly") {
+      CheckForButtonEvent(vr::VREvent_ButtonPress,
+                          phx::VRController::BUTTON_PRESSED, vr::k_EButton_Grip,
+                          "left", true, vr_controller.get());
+      CheckForButtonEvent(
+          vr::VREvent_ButtonUnpress, phx::VRController::BUTTON_RELEASED,
+          vr::k_EButton_Grip, "left", true, vr_controller.get());
+      CheckForButtonEvent(vr::VREvent_ButtonTouch,
+                          phx::VRController::BUTTON_TOUCH, vr::k_EButton_Grip,
+                          "left", true, vr_controller.get());
+      CheckForButtonEvent(vr::VREvent_ButtonUntouch,
+                          phx::VRController::BUTTON_UNTOUCH, vr::k_EButton_Grip,
+                          "left", true, vr_controller.get());
+    }
+    THEN("wrong sided events are ignored") {
+      CheckForButtonEvent(vr::VREvent_ButtonPress,
+                          phx::VRController::BUTTON_PRESSED, vr::k_EButton_Grip,
+                          "right", false, vr_controller.get());
+    }
+
+    THEN(
+        "events on other buttons are ignored, respectively the correct button "
+        "id is forwarded") {
+      CheckForButtonEvent(
+          vr::VREvent_ButtonPress, phx::VRController::BUTTON_PRESSED,
+          vr::k_EButton_SteamVR_Trigger, "right", false, vr_controller.get());
+    }
+  }
+}
+
+SCENARIO("we can get the actual position on the analog axes, like the trackpad",
+         "[phx][phx::VRController]") {
+  OPENVR_MOCK_ALLOW_ANY_CALL
+  GIVEN("a VRController") {
+    auto vr_controller =
+        std::make_unique<phx::VRController>(phx::VRController::LEFT_CONTROLLER);
+
+    WHEN("for an axis is asked that does not exist for this mocked device") {
+      auto log_capture = std::make_shared<test_utilities::LogCapture>();
+      phx::logger = std::make_shared<spdlog::logger>("logcapture", log_capture);
+      phx::logger->set_pattern("%w");
+      ALLOW_CALL(openvr_mock.GetSystem(), GetControllerAxisTypeNameFromEnum(
+                                              vr::k_eControllerAxis_Trigger))
+          .RETURN("k_eControllerAxis_Trigger");
+
+      vr_controller->GetAxesValue(phx::VRController::AXES_TRIGGER);
+
+      THEN("we expect a warning") {
+        REQUIRE(*log_capture ==
+                "VRController device  does not provide the requested axes: "
+                "k_eControllerAxis_Trigger ");
+      }
+    }
+
+    WHEN("we ask for an existing axis the values are returned") {
+      ALLOW_CALL(
+          openvr_mock.GetSystem(),
+          GetControllerStateWithPose(vr::TrackingUniverseStanding, 2, _, _, _))
+          .RETURN(true)
+          .SIDE_EFFECT(_3->rAxis[0].x = 0.5f)
+          .SIDE_EFFECT(_3->rAxis[0].y = 0.7f);
+      ALLOW_CALL(openvr_mock.GetSystem(),
+                 GetInt32TrackedDeviceProperty(_, vr::Prop_Axis0Type_Int32, _))
+          .RETURN(vr::k_eControllerAxis_Trigger);
+
+      glm::vec2 value =
+          vr_controller->GetAxesValue(phx::VRController::AXES_TRIGGER);
+
+      THEN("we get the expected values") {
+        REQUIRE(value == glm::vec2(0.5f, 0.7f));
+      }
+    }
+  }
+}
+
+// TODO(JW) try also axes
diff --git a/tests/src/tests.cpp b/tests/src/tests.cpp
index 470c22fbbdaf5a1a78617debe061cf17ac89d6bb..ca1bc6a8bef06092ff36028073f3e64a8022b451 100644
--- a/tests/src/tests.cpp
+++ b/tests/src/tests.cpp
@@ -22,23 +22,3 @@
 
 #define CATCH_CONFIG_MAIN
 #include "catch/catch.hpp"
-
-#include "trompeloeil.hpp"
-
-namespace trompeloeil {
-template <>
-void reporter<specialized>::send(severity s, const char* file,  // NOLINT
-                                 unsigned long line,            // NOLINT
-                                 const char* msg) {             // NOLINT
-  std::ostringstream os;
-  if (line) os << file << ':' << line << '\n';
-  os << msg;
-  auto failure = os.str();
-  if (s == severity::fatal) {
-    FAIL(failure);
-  } else {
-    CAPTURE(failure);
-    CHECK(failure.empty());
-  }
-}
-}  // namespace trompeloeil
diff --git a/tests/test_utilities/approx.hpp b/tests/test_utilities/approx.hpp
index f09bbcaaba026bf7bad7ccfeaf8468dfe4ba3e1b..bfd3956d4824c5a64936d39a9ceb4c35922519c6 100644
--- a/tests/test_utilities/approx.hpp
+++ b/tests/test_utilities/approx.hpp
@@ -38,8 +38,6 @@ SUPPRESS_WARNINGS_END
 
 namespace test_utilities {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 template <typename T>
 class Approx {
  public:
@@ -76,8 +74,6 @@ class Approx {
   const T& value_;
 };
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace test_utilities
 
 namespace Catch {
diff --git a/tests/test_utilities/dummy_mesh_generator.hpp b/tests/test_utilities/dummy_mesh_generator.hpp
index 49c73df2c9849330a259cd0883c07de04e87826c..5febf12190e0be8621034ef4bdb7cefeaab617a7 100644
--- a/tests/test_utilities/dummy_mesh_generator.hpp
+++ b/tests/test_utilities/dummy_mesh_generator.hpp
@@ -46,7 +46,7 @@ class DummyMeshLoader : public ResourceLoadStrategy {
                   std::vector<unsigned int> &&indices);
   DummyMeshLoader(const DummyMeshLoader &) = default;
   DummyMeshLoader(DummyMeshLoader &&) = default;
-  ~DummyMeshLoader() = default;
+  ~DummyMeshLoader() override = default;
 
   DummyMeshLoader &operator=(const DummyMeshLoader &) = default;
   DummyMeshLoader &operator=(DummyMeshLoader &&) = default;
diff --git a/tests/test_utilities/glm_vec3.hpp b/tests/test_utilities/glm_vec.hpp
similarity index 58%
rename from tests/test_utilities/glm_vec3.hpp
rename to tests/test_utilities/glm_vec.hpp
index d33ee272edb8b709e0fdb86e2d6f3f443d5a7f8f..2c56f39eae5c91ba404fcedf5269ada536f32e7f 100644
--- a/tests/test_utilities/glm_vec3.hpp
+++ b/tests/test_utilities/glm_vec.hpp
@@ -20,8 +20,8 @@
 // limitations under the License.
 //------------------------------------------------------------------------------
 
-#ifndef TESTS_TEST_UTILITIES_GLM_VEC3_HPP_
-#define TESTS_TEST_UTILITIES_GLM_VEC3_HPP_
+#ifndef TESTS_TEST_UTILITIES_GLM_VEC_HPP_
+#define TESTS_TEST_UTILITIES_GLM_VEC_HPP_
 
 #include <algorithm>
 #include <limits>
@@ -42,6 +42,15 @@ SUPPRESS_WARNINGS_END
 
 namespace Catch {
 
+template <>
+struct StringMaker<glm::vec2> {
+  static std::string convert(const glm::vec2& vector) {
+    std::ostringstream sstr;
+    sstr << vector;
+    return sstr.str();
+  }
+};
+
 template <>
 struct StringMaker<glm::vec3> {
   static std::string convert(const glm::vec3& vector) {
@@ -51,25 +60,50 @@ struct StringMaker<glm::vec3> {
   }
 };
 
+template <>
+struct StringMaker<glm::vec4> {
+  static std::string convert(const glm::vec4& vector) {
+    std::ostringstream sstr;
+    sstr << vector;
+    return sstr.str();
+  }
+};
+
 }  // namespace Catch
 
 namespace test_utilities {
 
-template <>
-inline bool Approx<glm::vec3>::operator==(const glm::vec3& rhs) {
+template <class VectorType>
+bool CompareVectors(VectorType a, VectorType b, int rows, float eps,
+                    float margin, float scale) {
   bool result = true;
-  for (int row = 0; row < 3; ++row) {
-    const auto this_element = value_[row];
+  for (int row = 0; row < rows; ++row) {
+    const auto this_element = a[row];
     auto this_approx_element = Catch::Detail::Approx(this_element);
-    this_approx_element.epsilon(epsilon_);
-    this_approx_element.margin(margin_);
-    this_approx_element.scale(scale_);
-    const auto other_element = rhs[row];
+    this_approx_element.epsilon(eps);
+    this_approx_element.margin(margin);
+    this_approx_element.scale(scale);
+    const auto other_element = b[row];
     result &= (other_element == this_approx_element);
   }
   return result;
 }
 
+template <>
+inline bool Approx<glm::vec2>::operator==(const glm::vec2& rhs) {
+  return CompareVectors<glm::vec2>(value_, rhs, 2, epsilon_, margin_, scale_);
+}
+
+template <>
+inline bool Approx<glm::vec3>::operator==(const glm::vec3& rhs) {
+  return CompareVectors<glm::vec3>(value_, rhs, 3, epsilon_, margin_, scale_);
+}
+
+template <>
+inline bool Approx<glm::vec4>::operator==(const glm::vec4& rhs) {
+  return CompareVectors<glm::vec4>(value_, rhs, 4, epsilon_, margin_, scale_);
+}
+
 }  // namespace test_utilities
 
-#endif  // TESTS_TEST_UTILITIES_GLM_VEC3_HPP_
+#endif  // TESTS_TEST_UTILITIES_GLM_VEC_HPP_
diff --git a/tests/test_utilities/log_capture.hpp b/tests/test_utilities/log_capture.hpp
index ba70a17190eb1d0c9f1ba7da9b9cc2cea32457cf..aa0e5dddec6f8ee823877b6e032eafe98b81cf5b 100644
--- a/tests/test_utilities/log_capture.hpp
+++ b/tests/test_utilities/log_capture.hpp
@@ -34,8 +34,6 @@
 
 namespace test_utilities {
 
-SUPPRESS_WARNINGS_BEGIN_PADDED
-
 class LogCapture : public spdlog::sinks::sink {
  public:
   void log(const spdlog::details::log_msg& msg) override;
@@ -49,8 +47,6 @@ class LogCapture : public spdlog::sinks::sink {
   std::stringstream log_stream_;
 };
 
-SUPPRESS_WARNINGS_END
-
 }  // namespace test_utilities
 
 namespace Catch {