I would like to call out this tutorial which explains how to blit in URP with VR in single pass instanced mode:
https://docs.unity.cn/Packages/com....eatures/how-to-fullscreen-blit-in-xr-spi.html
The biggest takeaway is that this has become way too complicated. In standard pipeline VR with single pass instanced, all of this is un-necessary and one can simply do CommandBuffer.Blit, and everything just works.
What changed to...
CommandBuffer.Blit in VR/XR
https://docs.unity.cn/Packages/com....eatures/how-to-fullscreen-blit-in-xr-spi.html
The biggest takeaway is that this has become way too complicated. In standard pipeline VR with single pass instanced, all of this is un-necessary and one can simply do CommandBuffer.Blit, and everything just works.
What changed to...
CommandBuffer.Blit in VR/XR