Forum Discussion
Gear VR S6 Android 5.1.1 vs 6.0.1 - performance drop - WaitForGPU/vsync issue
Hi! We are developing VR game for Gear VR (and Rift later on). Recently we spotted performance drop from stable 60 fps down to 30. Further search showed up it's due to abnormally high WaitForGPU and ...
Hi.
We have the same problem. Our game have only 60 or 30 fps. Nothing between. Even in almost empty room. This really looks like vsync. We replaced old ovr scripts but this didn't help us. We are working on unity 5.3.4p1. We have new android sdk and everything is actual.
Few observations:
- It shows only at scenes where we use occlusion culling
- Scene without occlusion culling (like one room) have good performance. 60k tri, 60 batches and stable 60 fps. It's much much heavier than in next example.
- Scene with occlusion culling (few rooms). When we look into place, where next rooms should be (behind wall), we get stable 30 fps. If we move camera a bit, than we get 60 fps again. It have drop from 60 to 30fps in one moment, we never get any fps between. We test that in room with 10k tri and 20 drawcalls. So it's impossible to get such fps drop.
Regards,
Bartłomiej Galas
We have the same problem. Our game have only 60 or 30 fps. Nothing between. Even in almost empty room. This really looks like vsync. We replaced old ovr scripts but this didn't help us. We are working on unity 5.3.4p1. We have new android sdk and everything is actual.
Few observations:
- It shows only at scenes where we use occlusion culling
- Scene without occlusion culling (like one room) have good performance. 60k tri, 60 batches and stable 60 fps. It's much much heavier than in next example.
- Scene with occlusion culling (few rooms). When we look into place, where next rooms should be (behind wall), we get stable 30 fps. If we move camera a bit, than we get 60 fps again. It have drop from 60 to 30fps in one moment, we never get any fps between. We test that in room with 10k tri and 20 drawcalls. So it's impossible to get such fps drop.
Regards,
Bartłomiej Galas