Rendering UE4 Volumetric Clouds in VR

Development Rendering
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1

I want to view the Volumetric Clouds from Unreal Engine in VR. Currently it only runs on one eye only. I know that the Volumetric Clouds are a Post Processing effect and that some of the Post Processing effects have the same one eye bug.

Can you give me some tips or Ideas on what to do or where to look?

What I tried, but does not work:

  • Instanced Stereo Enabling or Disabling

  • Changing the Engine Scalability Settings to Maximum in Editor and .ini

  • Run project in UE4.26, UE4.27 or UE5

  • Run Project in Steam VR and Mobile VR

  • The preview version of the Volumetric clouds in UE4.25 works in VR with “mobile HDR” disabled and “instanced Stereo” enabled. But the control over the cloud material is very limited customizability and the performance is terrible compared to the UE4.26 clouds. See here:

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2

The problem is now fixed in UE5.0.
The clouds render in UE4.27 too, but the clouds in the left eye are jittering and render over solid objects. To fix it you need to change two lines of code and build UE4.27 from source. These two lines from this UE5.0 git commit: https://github.com/EpicGames/UnrealEngine/commit/3808796330293133103b009ac630c716c1de6fc1