Right-left eye rendered differently in VR

[EvoPulseGaming]

Imported from UE4-OceanProject/OceanProject#124

Hardware: Oculus Rift
Issue: Certain details don't appear in the right eye, seems VR misses some shaders for the right eye? Or can be a transparency problem.
Versions: (all recent from 4.22-4.24)
Reproduce: load the map with island and you will not see sand, foams in the right eye, only in left.

I don't know its an issue for other VR hardware, or only Oculus.

[oak1980]

This started happening in our game after upgrading from 4.21 to 4.26. Removing all cache, and rebuilding all shaders didn't help. It seems to only be relating to particle systems, and certain shaders. Common to them is that they "alpha blend" with the background. Some of the text element show on both eyes - but most of them don't.

[oak1980]

Disabling "Instanced Stereo" resulted in the shaders working on both eyes - however, the rendering to the right eye is now half width - making this solution alone useless.

[oak1980]

Found a workaround: Engine>Rendering>Translucency>Separate Translucency (Set disabled)

[yoponchik]

Found a workaround: Engine>Rendering>Translucency>Separate Translucency (Set disabled)

You are the man👍