Elemental Unreal Engine Demo has problem in VR

Development Platform & Builds XR Development
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1

When the Elemental demo is run in VR, there is a problem rendering THE LEFT EYE which appears to have some crossover rendering on the rightmost from THE RIGHT EYE. Close your right eye and have a look around. This will also be most apparent on wide FOV headsets like the Wearality Sky.

I also have confirmed the other demos such Infiltrator and Showdown don’t have any VR stereo rendering problems. Just trying VR preview after downloading will suffice to show the problem without any modifications.

Can someone please fix this bug which seems localized to the Elemental demo? I really want to show it as a great part of VR experience and it is distracting.

Thanks in advance.

2

Hello bcozier,

I was unable to reproduce this issue on our end. I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. I noticed that you mentioned the issue was most apparent on wide FOV headsets, does this mean you have multiple HMDs to test this issue?
  2. If so, could you try this on the oculus rift or HTC and let me know if the issue occurs there?
  3. Could you provide screen shots of the issue that you are having?
  4. It appears that the Wearality Sky uses mobiles devices, what device are you using for the test?
  5. What is the current OS being run on the device?
  6. Are you packaging the project our or launching on?
3

Ok I am using the Steam VR support plugin with all other VR plugins disabled. I am building the Shipping package with everything MAX and production lighting. I am using Riftcat to host the Steam VR plugin which streams the LEFT and RIGHT eyes to my Samsung Galaxy S7 in the Wearality Headset which uses a wider FOV of 150 than Oculus 110, therefore the extra rightmost rendering on the LEFT EYE may not be visible with the Rift. Sorry for the poor pictures but its hard to take good pics of a phone display. But you can see clearly the center of the phone is the cogwheel settings icon bottom center and it appears as if the RIGHT EYE is overlapping some extra stuff on the LEFT EYE rightmost. Again small FOV headsets won’t see it, but you can see it when I take the phone out of the headset. Again, this problem is completely absent with the other VR demos showdown and Infiltrator so not sure why it’s happening but appears to be local to Elemental.

4

I can also confirm I tried only the Oculus Plugin and there is no bug with Oculus, so it seems the problem is using Steam VR Plugin with Elemental Demo only.

5

I noticed that you are using Riftcat, can you reproduce this issue without using this software?

6

At the moment Riftcat is the only VR hardware/software I own. I also noticed better performance with Oculus Plugin so I can stick with Oclulus/Riftcat. It’s strange because Riftcat uses ReviveInjector to translate Oculus into SteamVR and it works however using only the SteamVR Unreal Engine plugin shows the error.

I am content to simply use the Oculus plugin so if nobody else is complaining (and the error doesn’t show with other demos also) we can just forget about the issue. Thanks.