Implemented the ROLV mode, switched to Unreal CreateProc instead of system,...

Implemented the ROLV mode, switched to Unreal CreateProc instead of system, added minimizing and maximizing to the editor

LaunchConfig/minicave.cfg

+#####################################################################
+# nDisplay config file for aixCAVE
+#####################################################################
+
+#####################################################################
+# Config info
+#******************************************************************** 
+# This is a config file header.
+#
+# Properties:
+# version - specifies the version of the configuration file (UE4.xx)
+#******************************************************************** 
+[info] version=22
+
+#####################################################################
+# Cluster nodes
+#******************************************************************** 
+# Cluster node is an application instance. It's allowed to use
+# multiple instances on the same PC. Sometimes its necessary.
+#
+# Properties:
+# id       - Unique node name
+# window   - Window ID
+# addr     - Network address (IPv4 only)
+# master   - Specifies if current node is master; default is 'false'
+# port_cs  - Cluster Synchronization port (required on master node only)
+# port_ss  - Swap Synchronization port (required on master node only)
+# port_ce  - Cluster Events port (required on master node only)
+#
+# Optional properties:
+# eye_swap - Swap eyes for this node; default is 'false'
+# sound    - turns on/off sound for this application instance; default is 'false'
+#********************************************************************      
+[cluster_node] id=node_floor addr=127.0.0.1 window=wnd_floor port_cs=41001 port_ss=41002 port_ce=41003 master=true sound=true
+[cluster_node] id=node_front addr=127.0.0.1 window=wnd_front
+[cluster_node] id=node_left  addr=127.0.0.1 window=wnd_left 
+[cluster_node] id=node_right addr=127.0.0.1 window=wnd_right
+[cluster_node] id=node_back  addr=127.0.0.1 window=wnd_back
+ 
+#####################################################################
+# Application windows
+#******************************************************************** 
+# The window entitty defines properties of application's game window.
+#
+# Properties:
+# id         - Unique window name
+# fullscreen - Fullscreen or windowed mode
+# winx       - X location
+# winy       - Y location
+# resx       - Width
+# resy       - Height
+# viewports  - Array of viewports
+#******************************************************************** 
+
+[window] id=wnd_floor viewports=vp_floor
+[window] id=wnd_front viewports=vp_front
+[window] id=wnd_left  viewports=vp_left
+[window] id=wnd_right viewports=vp_right
+[window] id=wnd_back  viewports=vp_back
+
+#####################################################################
+# Projection screens
+#******************************************************************** 
+# Projection screen is a rectangle which determines the camera frustum.
+# Usually the projection screen has the same dimensions as an output
+# display but in some cases it may differ.
+#
+# Properties:
+# id     - unique projection screen name
+# loc    - relative location to the parent component. Location is relative
+#          to the VR root if no parent specified. The pivot is a screen's
+#          center and the values are in meters.
+# rot    - relative rotation to the parent component. Rotation is relative
+#          to the VR root if no parent specified. The pivot is a screen's
+#          center and the values are in degrees.
+# size   - width (X) and height (Y) of the screen. Values are in meters.
+#
+# Optional properties:
+# parent     - ID of parent component in VR hierarchy; default is VR root.
+# tracker_id - ID of tracking device; no tracking by default.
+# tracker_ch - ID of tracking device's channel; no tracking by default.
+#******************************************************************** 
+
+[screen] id=screen_floor loc="X=0,Y=0,Z=0" rot="P=0,Y=0,R=0" size="X=5.25,Y=5.25" parent=loc_floor
+[screen] id=screen_front loc="X=0,Y=0,Z=0" rot="P=0,Y=0,R=0" size="X=5.25,Y=3.3"  parent=loc_front
+[screen] id=screen_left  loc="X=0,Y=0,Z=0" rot="P=0,Y=0,R=0" size="X=3.3,Y=5.25"  parent=loc_left 
+[screen] id=screen_right loc="X=0,Y=0,Z=0" rot="P=0,Y=0,R=0" size="X=3.3,Y=5.25"  parent=loc_right
+[screen] id=screen_back  loc="X=0,Y=0,Z=0" rot="P=0,Y=0,R=0" size="X=5.25,Y=3.3"  parent=loc_back 
+
+#####################################################################
+# Viewports
+#******************************************************************** 
+# Viewport is a rectangle area of game window where rendered frame is
+# mapped. Usually the viewport starts at 0:0 and has the same size as
+# its parent window but in some cases these settings may differ.
+#
+# Properties:
+# id     - unique viewport name
+# x      - X coordinate of viewport's top left corner
+# y      - Y coordinate of viewport's top left corner
+# width  - width of viewport in pixels
+# height - height of viewport in pixels
+#******************************************************************** 
+
+[viewport] id=vp_floor screen=screen_floor x=0 y=0 width=480 height=480
+[viewport] id=vp_front screen=screen_front x=0 y=0 width=480 height=300
+[viewport] id=vp_left  screen=screen_left  x=0 y=0 width=300 height=480
+[viewport] id=vp_right screen=screen_right x=0 y=0 width=300 height=480
+[viewport] id=vp_back  screen=screen_back  x=0 y=0 width=480 height=300
+
+#####################################################################
+# Cameras
+#******************************************************************** 
+# Camera is a predefined point frome where the stereoscopic view built.
+# It's possible to define multiple cameras and swith the active one
+# during runtime. You're free to attach any camera to a tracking device
+# for head tracking. Consider a camera as a viewer's head.
+#
+# Properties:
+# id  - unique camera name
+# loc - relative location to the parent component. Location is relative
+#       to the VR root if no parent specified.
+# rot - relative rotation to the parent component. Rotation is relative
+#       to the VR root if no parent specified.
+#
+# Optional properties:
+# parent     - ID of parent component in VR hierarchy; default is VR root.
+# tracker_id - ID of tracking device; no tracking by default.
+# tracker_ch - ID of tracking device's channel; no tracking by default.
+#******************************************************************** 
+
+[camera] id=camera_dynamic loc="X=0,Y=0,Z=0" parent=shutter_glasses
+
+#####################################################################
+# Scene nodes (hierarchy transforms) 
+#******************************************************************** 
+# Scene node is an actor component which is basically a transformation
+# matrix. Scene nodes can be helpful to build a component hierarchy, to
+# define some special places (like a socket) within VR space.
+#
+# It might be difficult to understand what VR space origin is. Consider
+# it as a point in space where VR space starts. Any componenent listed
+# in this config file is relative to its parent or this origin.
+#
+# Properties:
+# id  - unique scene node name
+# loc - relative location to the parent component. Location is relative
+#       to the VR root if no parent specified.
+# rot - relative rotation to the parent component. Rotation is relative
+#       to the VR root if no parent specified.
+#
+# Optional properties:
+# parent     - ID of parent component in VR hierarchy; default is VR root.
+# tracker_id - ID of tracking device; no tracking by default.
+# tracker_ch - ID of tracking device's channel; no tracking by default.
+#******************************************************************** 
+
+[scene_node] id=cave_origin     loc="X=0,Y=0,Z=0"    rot="P=0,Y=0,R=0"
+[scene_node] id=cave_center     loc="X=0,Y=0,Z=1.65" rot="P=0,Y=0,R=0" parent=cave_origin
+[scene_node] id=flystick        loc="X=0,Y=0,Z=0"    rot="P=0,Y=0,R=0" parent=cave_origin
+[scene_node] id=shutter_glasses loc="X=0,Y=0,Z=1.65" rot="P=0,Y=0,R=0" parent=cave_origin
+
+[scene_node] id=angle_front  loc="X=0,Y=0,Z=0" rot="P=0,Y=0,R=0"     parent=cave_center
+[scene_node] id=angle_left   loc="X=0,Y=0,Z=0" rot="P=0,Y=-90,R=90"  parent=cave_center
+[scene_node] id=angle_right  loc="X=0,Y=0,Z=0" rot="P=0,Y=90,R=-90"  parent=cave_center
+[scene_node] id=angle_back   loc="X=0,Y=0,Z=0" rot="P=0,Y=180,R=180" parent=cave_center
+[scene_node] id=angle_floor  loc="X=0,Y=0,Z=0" rot="P=-90,Y=0,R=0"   parent=cave_origin
+
+[scene_node] id=loc_front loc="X=2.625,Y=0.01,Z=0.01" rot="P=0,Y=0,R=0" parent=angle_front
+[scene_node] id=loc_left  loc="X=2.625,Y=0.01,Z=0.01" rot="P=0,Y=0,R=0" parent=angle_left
+[scene_node] id=loc_right loc="X=2.625,Y=0.01,Z=0.01" rot="P=0,Y=0,R=0" parent=angle_right
+[scene_node] id=loc_back  loc="X=2.625,Y=0.01,Z=0.01" rot="P=0,Y=0,R=0" parent=angle_back
+[scene_node] id=loc_floor loc="X=0.001,Y=0.01,Z=0.01" rot="P=0,Y=0,R=0" parent=angle_floor
+
+#####################################################################
+# Input devices
+#******************************************************************** 
+# Input devices are VRPN devices. The nDisplay supports the following
+# types: analog, button and tracker. Many of physical input devices
+# can be connected via VRPN.
+#
+# Properties:
+# id    - nique device name
+# type  - VRPN type (analog, button or tracker).
+# addr  - address of a VRPN server which handles this particular device.
+#         The value must match the following format: DEVICENAME@SERVER_ADDRESS
+#         where DEVICENAME is a VRPN name of this device and SERVER_ADDRESS
+#         is IPv4 address of VRPN server.
+# loc   - relative location to the parent component. Location is relative
+#         to the VR root if no parent specified.
+# rot   - relative rotation to the parent component. Rotation is relative
+#         to the VR root if no parent specified.
+#
+# front (tracker only) - mapping of a tracking system axis to X axis of VR origin
+# right (tracker only) - mapping of a tracking system axis to Y axis of VR origin
+# up    (tracker only) - mapping of a tracking system axis to Z axis of VR origin
+# * The following values are allowed for axes mapping: X, -X, Y, -Y, Z, -Z
+#
+# Optional properties:
+# remap - VRPN device channel remapping. Value format is: "from0:to0,from1:to1,...,fromN:toN".
+#         For example: remap="0:3,1:4,5:2"
+#******************************************************************** 
+
+#####################################################################
+# Stereoscopic settings
+#******************************************************************** 
+# Properties:
+# eye_dist - interoccular distance in meters
+[stereo] eye_dist=0.064
+#####################################################################
+# General settings
+#******************************************************************** 
+# Properties:
+# swap_sync_policy - swap synchronization policy
+#                  - 0 - no synchronization
+#                  - 1 - software swap synchronization
+#                  - 2 - NV swap lock (Nvidia cards only, OpenGL only)
+[general] swap_sync_policy=1
+
+#####################################################################
+# Network settings
+#******************************************************************** 
+# Optional properties:
+# cln_conn_tries_amount - how many times a client tries to connect to a server
+# cln_conn_retry_delay  - delay before next client connection try (milliseconds)
+# game_start_timeout    - timeout before all data is loaded and game started (milliseconds)
+# barrier_wait_timeout  - barrier timeout for both game and render threads (milliseconds)
+[network] cln_conn_tries_amount=300 cln_conn_retry_delay=1000 game_start_timeout=60000 barrier_wait_timeout=60000
+
+#####################################################################
+# Custom arguments
+#******************************************************************** 
+# Any custom arguments available in runtime can be specified here.
+# Format:  ARG_NAME=ARG_VAL
+[custom] Hardware_Platform=VirtualCAVE

Source/CAVELaunchButton/Private/CAVELaunchButton.cpp

 // Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
 #include "CAVELaunchButton.h"
 
-#include <stdlib.h>
-
 #include "CAVELaunchButtonStyle.h"
+#include "CAVELaunchButtonSettings.h"
 #include "CAVELaunchButtonCommands.h"
 #include "Misc/MessageDialog.h"
 #include "Framework/MultiBox/MultiBoxBuilder.h"
+#include "IPluginManager.h"
+#include "Misc/EngineVersion.h"
 
 #include "LevelEditor.h"
 
@@ -49,12 +50,42 @@ void FCAVELaunchButtonModule::ShutdownModule()
 
 void FCAVELaunchButtonModule::PluginButtonClicked()
 {
-	int result = system("C:\\test.bat");
+// minimize the root window to provide max performance for the preview.
+TSharedPtr<SWindow> RootWindow = FGlobalTabmanager::Get()->GetRootWindow();
+if (RootWindow.IsValid()) RootWindow->Minimize();
+	
+#if PLATFORM_WINDOWS
+	const UCAVELaunchButtonSettings* Settings = GetDefault<UCAVELaunchButtonSettings>();
+
+	if (Settings->StartROLVInsteadOfCAVE) {
+		UE_LOG(LogTemp, Log, TEXT("This would launch ROLV!"));
+	} else {
+		FString Config = IPluginManager::Get().FindPlugin("CAVELaunchButton")->GetBaseDir() + "/LaunchConfig/minicave.cfg";
+		FString EditorExecutable = "UE4Editor.exe"; //FPaths::ConvertRelativePathToFull(FPaths::EngineDir()) + "/Binaries/Win64/UE4Editor.exe";
+		FString Parameters = "\"" + FPaths::GetProjectFilePath() + "\" -game -windowed -fixedseed -notexturestreaming -opengl4 dc_cfg=\"" + Config + "\" -dc_cluster -dc_dev_mono";
+
+		const int num_nodes = 5;
+		FString Windows_Node_Specific_Commands[num_nodes] = {
+			"dc_node=node_floor WinX=720  WinY=300 ResX=480 ResY=480 -log ABSLOG=" + FPaths::ProjectDir() + "\\MiniCaveMulti.log " + Settings->AdditionalParameters + " " + Settings->AdditionalParametersMaster,
+			"dc_node=node_front WinX=720  WinY=0   ResX=480 ResY=300 " + Settings->AdditionalParameters,
+			"dc_node=node_left  WinX=420  WinY=300 ResX=300 ResY=480 " + Settings->AdditionalParameters,
+			"dc_node=node_right WinX=1200 WinY=300 ResX=300 ResY=480 " + Settings->AdditionalParameters,
+			"dc_node=node_back  WinX=720  WinY=780 ResX=480 ResY=300 " + Settings->AdditionalParameters
+		};
+
+		FProcHandle processes[num_nodes];
+		
+		for(int i = 0; i < num_nodes; i++){
+			processes[i] = FPlatformProcess::CreateProc(*EditorExecutable, *(Parameters + " " + Windows_Node_Specific_Commands[i]), true, false, false, NULL, 0, NULL, NULL);
+		}
+		FPlatformProcess::WaitForProc(processes[num_nodes - 1]);
 	}
+#elif PLATFORM_LINUX
+	FProcHandle process = FPlatformProcess::CreateProc(*FString("/home/av006de/demos_UNREAL/.misc/scripts/cave/launch_aixcave_editor.sh"), *("\"" + (FPaths::ConvertRelativePathToFull(FPaths::EngineDir()) + "\\Binaries\\Linux\\UE4Editor\" ") + FPaths::GetProjectFilePath() + " " + FEngineVersion::Current().GetMajor() + FEngineVersion::Current().GetMinor()), true, false, false, NULL, 0, NULL, NULL);
+	FPlatformProcess::WaitForProc(process);
+#endif
 
-void FCAVELaunchButtonModule::AddMenuExtension(FMenuBuilder& Builder)
-{
-	Builder.AddMenuEntry(FCAVELaunchButtonCommands::Get().PluginAction);
+	if (RootWindow.IsValid()) RootWindow->Maximize();
 }
 
 void FCAVELaunchButtonModule::AddToolbarExtension(FToolBarBuilder& Builder)

Source/CAVELaunchButton/Private/CAVELaunchButtonCommands.cpp

 // Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
 
 #include "CAVELaunchButtonCommands.h"
+#include "CAVELaunchButtonSettings.h"
 
 #define LOCTEXT_NAMESPACE "FCAVELaunchButtonModule"
 
 void FCAVELaunchButtonCommands::RegisterCommands()
+{
+	if(GetDefault<UCAVELaunchButtonSettings>()->StartROLVInsteadOfCAVE)
+	{
+		UI_COMMAND(PluginAction, "PlayOnROLV", "Launch current project on ROLV", EUserInterfaceActionType::Button, FInputGesture());
+	}else
 	{
 		UI_COMMAND(PluginAction, "PlayInCAVE", "Launch current project in CAVE", EUserInterfaceActionType::Button, FInputGesture());
 	}
+}
 
 #undef LOCTEXT_NAMESPACE

Source/CAVELaunchButton/Private/CAVELaunchButtonStyle.cpp

@@ -6,6 +6,7 @@
 #include "Styling/SlateStyleRegistry.h"
 #include "Slate/SlateGameResources.h"
 #include "Interfaces/IPluginManager.h"
+#include "CAVELaunchButtonSettings.h"
 
 TSharedPtr< FSlateStyleSet > FCAVELaunchButtonStyle::StyleInstance = NULL;
 
@@ -46,7 +47,13 @@ TSharedRef< FSlateStyleSet > FCAVELaunchButtonStyle::Create()
 	TSharedRef< FSlateStyleSet > Style = MakeShareable(new FSlateStyleSet("CAVELaunchButtonStyle"));
 	Style->SetContentRoot(IPluginManager::Get().FindPlugin("CAVELaunchButton")->GetBaseDir() / TEXT("Resources"));
 
-	Style->Set("CAVELaunchButton.PluginAction", new IMAGE_BRUSH(TEXT("ButtonIcon_40x"), Icon40x40));
+	if (GetDefault<UCAVELaunchButtonSettings>()->StartROLVInsteadOfCAVE)
+	{
+		Style->Set("CAVELaunchButton.PluginAction", new IMAGE_BRUSH(TEXT("ROLVIcon_40x"), Icon40x40));
+	}else
+	{
+		Style->Set("CAVELaunchButton.PluginAction", new IMAGE_BRUSH(TEXT("CAVEIcon_40x"), Icon40x40));
+	}
 	
 	return Style;
 }

Source/CAVELaunchButton/Public/CAVELaunchButton.h

@@ -8,6 +8,7 @@
 class FToolBarBuilder;
 class FMenuBuilder;
 
+
 class FCAVELaunchButtonModule : public IModuleInterface
 {
 public:
@@ -22,7 +23,6 @@ public:
 private:
 
 	void AddToolbarExtension(FToolBarBuilder& Builder);
-	void AddMenuExtension(FMenuBuilder& Builder);
 	
 private:
 	TSharedPtr<class FUICommandList> PluginCommands;

Source/CAVELaunchButton/Public/CAVELaunchButtonSettings.h

+#pragma once
+#include "CoreMinimal.h"
+#include "Engine/DeveloperSettings.h"
+#include "CAVELaunchButtonSettings.generated.h"
+
+UCLASS(config=Engine, defaultconfig, meta=(DisplayName="nDisplay Launch Button"))
+class UCAVELaunchButtonSettings : public UDeveloperSettings
+{
+    GENERATED_BODY()
+public:
+    
+    UPROPERTY(EditAnywhere, config, Category = LaunchParametersWindows)
+	FString AdditionalParameters = "";
+
+	UPROPERTY(EditAnywhere, config, Category = LaunchParametersWindows)
+	FString AdditionalParametersMaster = "";
+
+	UPROPERTY(EditAnywhere, config, Category = Platform, meta = (ConfigRestartRequired = true))
+	bool StartROLVInsteadOfCAVE = false;
+};