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Barzum01
Participant
November 14, 2019

Color Grading on Quest?

Hi everyone,
The question is in the title, there was a video about porting Rift games to Quest, the discussion was about  a way of using LUT textures in the material for color grading, does anyone know the way it can be done using UE4 material editor? Thanks
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    7 replies

    vikneshtk
    Participant
    November 14, 2019
    I am not sure about using LUT Textures for color grading. But unreal officially support color grading through their post process effects. Can you be more specific on which part or why u need color grading?
    Barzum01Author
    Participant
    November 14, 2019
    Unfortunately on Quest the default post process is not working, it needs mobile HDR to be enabled,  mobile HDR is no go acording to documentation
    vikneshtk
    Participant
    November 19, 2019
    @Barzum_01
    Are you sure?. Because unreal have a separate documentation on post process effects that are compatible with mobile devices. I have the link but I am unable to paste it here as my profile is not yet reached higher badge level to do that. So pseudo coding the link here.  
    https>>docs.unrealenginedotcom/en-US/Platforms/Mobile/PostProcessEffects/indexdothtml
    Barzum01Author
    Participant
    November 19, 2019
    Yep unfortunately, for mobile PP "please make sure that Mobile HDR is enabled"
    And here is from Oculus docs
    "Scroll to the Engine section, select Rendering, and make sure Mobile HDR is turned off:"
    With HDR on I have instant crash on my app


    rasamaya
    Participant
    December 29, 2019
    Yes this is crazy I cant even white balance. This needs to be addressed asap
    Ordered and Received DK1 Ordered DK2 within 18 minutes of announcement!! woot! Concerned about facebook thing, but would have done the same myself. Developing the VR gloves you always imagined(over 1 year full-time development, and looking sweet)
    Halfspacer
    Halfspacer
    Inspiring
    January 2, 2020
    What the OC video talked about was using a batch script to apply a LUT to all your project textures. The idea is that rather than using post processing effects to grade (Expensive on mobile), you bake the grade directly into your textures - Which then gives you a similar (enough) result that's also completely free in terms of performance. 

    edit If I remember correctly, the talk recommended taking a screenshot from your game and grading that to your liking in Photoshop, saving the grade as a LUT and then applying that LUT to all the individual textures.
    Anonymous
    February 14, 2020
    I wouldn't use the PostProcess Volume at all when deploying to the Quest or even to the Rift. It's to expensive. My latest tests showed a significant FPS drop - it's to expensive. I guess it's best to set your color-tones without using PPV and then deploy from there.
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