Forum Discussion
The effects of anti-aliasing 4x on GPU utilization
Hi, We are building a game for Quest 2/3 and we hit some hiccups with anti-aliasing destroying GPU utilization. In Quest 3, without GPU Utilization, our game runs around 50-60% GPU Utilization usual...
We found the root cause to be due to Vulkan + MSAA being enabled. OpenGL works perfectly fine with min impact to GPU, but having anti-aliasing with Vulkan just destroys everything. Very frustrating, and looks like has been a bug in unity for a while - https://issuetracker.unity3d.com/issues/performance-vulkan-performing-much-worse-than-opengles-due-to-excessive-buffer-copies-on-quest-2-slash-3