[Windows] Video rendered to only one eye when using VR and a linear color space #2409
Description
Unity version
6.3.0f1
Unity editor platform
Windows
AVPro Video edition
Core
AVPro Video version
3.3.3
Device hardware
Windows + Quest 3
Which Windows version are you using?
11
Graphics API
D3D 11
Video API
Media Foundation
Audio output
Unity
Any other Media Player component configuration required to reproduce the issue.
StereoPacking = Monoscopic
Which output component(s) are you using?
Display uGUI
Any other component configuration required to reproduce the issue.
Unity color space should be set to linear
The issue
When playing back a non stereo video that is rendered to Display uGUI on a canvas rendered in world space. The video is only visible in the left eye, the right eye just renders a black plane.
When i switch the entire project color space to Gamma the video will be rendered correctly to both eyes.
Looking at the DisplayUGUI.cs file the following lines are the probable cause of the problem.
#if UNITY_PLATFORM_SUPPORTS_LINEAR
if (result == null && _mediaPlayer.Info != null)
{
if (QualitySettings.activeColorSpace == ColorSpace.Linear && !_mediaPlayer.Info.PlayerSupportsLinearColorSpace())
{
result = EnsureAlphaPackingShader();
}
}
#endif
This picks a shader that doesn't support the unity VR stereo rendering when the project color space is set to Linear. While it picks the default/UI shader when using the Gamma color space.
Media information
No response