I am getting 25fps on levels with almost nothing in it. I am running a GTX 1080 and i7 6700k so performance should not be a problem. How do i fix this?
Could be due to a lot of things. Please check/answer the following:
-Which VR device do you use?
-Do you have the latest drivers installed?
-Rebooted your PC? (Sounds dumb but often helps)
-Anything else running that costs performance? (Several UE4 instances / other game engines / games / crypto-mining, …)
-Often a restart of UE4 helps too
If all that doesn’t help check if the performance is good in an existing VR game, if so it could be your scene/game.
-Did you try a completely new level?
-Any fancy calculations going on? (Though they should run on the CPU)
-Check the GPU Profiler - you should be under 11ms per frame (-> 90fps for Vive/Oculus), there you can see what costs you performance
General tips and tricks:
-Use low-poly meshes and LODs (UE4 can generate them for you)
-Use normal maps for details (though they can be strange in VR when up-close)
-Use static lights and objects whenever possible
-Use instanced stereo rendering
-Use forward rendering and MSAA
-Limit the amount of objects in your scene, since VR uses a lot of performance
Hope I could help!
-HTC Vive
-I am running ubuntu 16.04 so i have the latest beta version of nvidia 384.47
-I have tried rebooting the PC multiple times, nothing seems to be changing
-Nothing other than SteamVR is running in the background.
I have tried creating multiple new levels but it always seems to hover around the 30-35 fps range. I also tried to lower the sp down to 100, which increases the fps to around 60. Again, i tried running levels with literally nothing in it other than a plane so there really shouldn’t be anything affecting the performance.
Do other VR games run smoothly?
Might be an issue with SteamVR and Linux or UE4 and Linux or both
It should be, I tried benchmarking the vr option of unigine’s superposition benchmark with vr maximum settings and getting around 90fps if that helps.
I have attached a screenshot of the GPU visualizer along with the game screen while loading an empty level.
Apparently the GPU utilization is only around 30% according to the nvidia driver.
I had a similar issue on windows, and I solved it by turning of the Geforce Experience In-game overlay. Maybe something similar is happening to you?