How to increase fps on oculus rift VR?

Development Platform & Builds XR Development
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1

Hello,I am a beginner who have been working on unreal engine VR development project for recent months.I have been assigned to do increase the fps count,and graphic profiling stuff in that project.I had a pretty much time with that optimization part also went through the every optimization information,but i was unable to increase the fps count to (90 fps) on oculus rift.The project has got many detailed textured 3d models and entire project cost around 58 gb on unreal editor.Please anyone can help me to figure out this thing?It would be really helpful to me.

Thank you very much.

2

Hello Chameera,

The quickest way for you to achieve target FPS may be to use the r.screenpercentage ## console command

(with ## being a number between 1 and 300)

Hope that helps!

3

Hello ,

Thank you very much for quick response and tips.I did try out that command but it couldn’t help me.FPS is still running at low.Are there any tips which would be helpful to me?

sincerely .

Thanks and regards from Sri Lanka.

4

Hi,

There can be lots of reason for low FPS. check GPU Profiling | Unreal Engine Documentation

with help of profiler you will be able to understand where the issue is…
It can be high resolution texture or high poly 3d models maybe or lights … try to keep light static as much as possible …
and use VR best practice… Virtual Reality Best Practices | Unreal Engine Documentation

there is one .INI file you have to paste that stuff in it … (its in the link as well… i’m pasting it here again )

*VR .INI Settings
The following .INI settings were taken from the UE4 powered, VR demo, Showdown. These . INIsettings, if used, should be added to your project’s Config\DefaultEngine.INI file, under SystemSettings.

[SystemSettings]

vr.PixelDensity=1
r.SeparateTranslucency=0
r.HZBOcclusion=0
r.MotionBlurQuality=0
r.PostProcessAAQuality=3
r.BloomQuality=1
r.EyeAdaptationQuality=0
r.AmbientOcclusionLevels=0
r.SSR.Quality=1
r.DepthOfFieldQuality=0
r.SceneColorFormat=2
r.TranslucencyVolumeBlur=0
r.TranslucencyLightingVolumeDim=4
r.MaxAnisotropy=8
r.LensFlareQuality=0
r.SceneColorFringeQuality=0
r.FastBlurThreshold=0
r.SSR.MaxRoughness=0.1
r.rhicmdbypass=0
sg.EffectsQuality=2
sg.PostProcessQuality=0*

let me know if it helps

thanks

5

“detailed textured 3d models and entire project cost around 58 gb”

This makes it sound like you are using some expensive textures and materials as well. You will need to cut down on the higher quality rendering to hit 90 FPS on VR. Also, what kind of system settings are you at?

Try “r.ScreenPercentage 75” and
sg.AntiAliasingQuality = 0
sg.ShadowQuality = 0
sg.PostProcessQuality = 0
sg.TextureQuality = 0
sg.EffectsQuality = 0

as console commands. Your project will end up looking pretty terrible but you if you’re not hitting 90 with those kind of settings you need to be focusing on things such as lights in the scene (Bake lighting, have no movable/stationary lights).

6

Hello Dune,Thank you very much for quick response and tips.I will try out the those commands and let you know the results.

Thank you very much.