I am trying to display a render target on a stereo layer. I get different results using an Oculus Rift S either with OpenXR or SteamVR.
Using OpenXR, my stereo layer renders black.
Using SteamVR, my stereo layer is entirely invisible.
Expected behaviour would be to see whatever is stored in my render target (neither black nor translucency), which for testing has been a widget.
How can I correctly display my render target (for all Headsets)?
Still looking for a solution!
Testing with an Index under 4.27.2, I can get a Quad layer (the only type supported) to work in SteamVR, both with the SteamVR and OpenXR plugins. With SteamVR, the image looks fine, but with OpenXR, the image has the wrong color space, and looks very dark.
SteamVR implements stereo layers as overlays, so you can use the Overlay Viewer tool under the developer menu in the SteamVR desktop widget to see if they get sent properly.