In optimization work we want to know if is it possible to use GPU optimized function to copy a RenderTexture on Pico G2 4K and Unity Legacy XR SDK.
Function we want to use :
var asyncGPUReadback = AsyncGPUReadback.Request(inputRenderTexture, 0);
Nowadays we use
StreamTexture.ReadPixels(new Rect(0, 0, inputRenderTexture.width, inputRenderTexture.height), 0, 0);
But it's extremely performance consuming.
Graphics.CopyTexture seems to be the key but we don't now how to use it correctly or if it work on the device. We only have a blank texture after the copy.
Thanks for helping