FAQs

• My MetaHuman's hair does not render correctly:

• Have a look at this wiki entry about Using MetaHumans in VR
• Try to see whether one specific LOD (Level of Detail works), they should have a LODSync component attached to the MetaHuman, which you can use the Forced LOD property of (-1 means automatic)
• If some strand-based hair seems to be missing and/or glitching into the skin and you are using forward shading, this may be caused by MSAA. Disabling MSAA in "Project Settings -> Anti-Aliasing Method" should fix this issue.
• Using forward shading can lead to overly bright reflections of the MetaHuman's hair. This problem does not occur when using deferred rendering.

• I have performance problems with MetaHumans in VR:

• See this dedicated page for performance optimizations.

• I want to use my own idle animation instead of the default ones provided in the Default state machine in the animation blueprint.

• The VirtualHuman actor has an array of CustomIdleAnimations where you can specify those and they will be played in the DefaultSlot overwriting the default state machine.
• ⚠️ This however also means that locomotion does not work anymore in that case! If you need that to work, you have to replace the idle in the blend space used
• If you give multiple animations from those always random ones are played and blended between.

• I get a Ensure condition failed: LUTIndex.IsValidIndex(PoseNames[PoseIndex].UID) warning when using a MetaHuman in my project.

• This seems to happen because the experimental PoseDriver animation graph node is used and causes problems in one of the default animation graphs.
• In one of the sub-skeletal meshes (in my case Legs and Feet) a default Animation Blueprint is used, which used the experimental PoseDriver nodes. By removing them I eliminated the problem while everything worked still well with custom animations.
• Unfortunately this has to be done in the common blueprints, which are copied in every project when importing a MetaHuman, so we have to do it in every project.
• Some pictures, what to do, can be found in this issue

• My female MetaHumans look weird when idling (tilted forward, hands within body)

Use the Animation/MetaHuman/femaleMetaHumanIdle animation as custom idle animation (it, however, does not really work for mal MetaHumans...)

• The eyes and feet of my CC3 models look very weird:
  

Sometimes when improting and mapping new CCs characters to the Henry_Skeleton, it is changed. Look into the folder character-plugin/Content/Characters/Henry using git. If the skeleton asset is marked as changed, revert those changes and everything should be fine.

• The head of my virtual human is jittering when using VHGazing

Try disabling bSupportClampedRotationByOtherParts under VHGazing | GazeDynamics (only available from UE5.3 on)