Foveated Rendering does't work when output render texture is set (Vive Flow on Unity 2020 + Universal RP)

[Danilo Delponte]

Hi, we are working on a Vive Flow app and trying to add foveated rendering to improve performance. It works fine until we set an output texture on a 2nd camera, which is required for the experience we're building.

We tried with the Unity Built-In Standard RP and it worked, but we currently need URP.

Setup:
* Unity 2020.3.20f1 with Universal RP building to Vive Flow.

Find attached a sample project to reproduce this issue. It starts with two cameras and a few props, on the Vive Flow mobile input the left and right buttons toggle the 2nd camera output to a render texture, you can see the foveated rendering turning on and off. Press menu button to exit the app.

ViveFoveatedIssueSample.zip

Edited June 22, 2022 by Danilo Delponte
attached files didnt show up, trying again.