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  • replied
    Originally posted by SonKim View Post

    Increasing the samples didn't yield better GI and increasing bounce = driver crash. The frame rate for this image is 5-6 fps.
    Have you tried to set your system TDR Delay to a higher value? More than one bounce increases the rendertime significantly and the driver crashes if a frame is computing longer than a few seconds.
    https://support.allegorithmic.com/do...128745489.html

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  • replied
    SonKim If you want to experiment with higher quality where fps is a sub-issue, try adding stuff like this to your level blueprint. You then start your PIE session, press your first hotkey (in my case H) to activate higher settings, make your screenshots and on exit/escape things are set back to speed again.

    Attached Files

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  • replied
    Nice work SonKim. All the more since your room is predominantly white and from my experience RTGI struggles most with getting bright albedo's noise-free-ish.
    Improvements are coming sooner btw. Dev-rendering on Github already has some new stuff added for 4.23 Just not sure how big of a difference that will make but we will see xD

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  • replied
    How did you manage to enable GI? I never get visual difference with GI or not. Good work anyway!

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  • replied
    Originally posted by Farshid View Post
    this scene is raytracing (lit mode) or pathtracing ?
    raytrace lit mode, i'm working on a new scene to further test real-time GI. I guess we won't see further improvement from this tech until Summer this year at Siggraph. RTGI is really splotchy with more than 1 bounce. If would be super useful if you could increase quality with higher setting even at a lost of frame rate(sub 5 fps). Also wish I could output render passses, take them into Nuke/Fusion and recreate the final beauty pass, this gives more control over image manipulation.

    I also use temporal sharpen(.5) material in post process to combat the lost in texture detail from Temporal AA.
    Last edited by SonKim; 04-28-2019, 03:47 AM.

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  • replied
    this scene is raytracing (lit mode) or pathtracing ?

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  • replied
    Yeah, but at 5-6 fps, not 5-6 hours

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  • replied
    Originally posted by another caveman View Post
    Very clean scene good job!
    Would it somehow be possible to store all you've already ray-traced (player camera), so that if you explore the whole room all the lighting will already be known...? So you have it at low fps the first time and (almost) never after for instance?
    You mean like baking the lighting

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  • replied
    Originally posted by SonKim View Post

    Increasing the samples didn't yield better GI and increasing bounce = driver crash. The frame rate for this image is 5-6 fps.
    Might be a bug since it's an incomplete feature, or maybe it just uses a lot of memory.

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  • replied
    Originally posted by another caveman View Post
    Very clean scene good job!
    Would it somehow be possible to store all you've already ray-traced (player camera), so that if you explore the whole room all the lighting will already be known...? So you have it at low fps the first time and (almost) never after for instance?
    Sounds like you want to bake all the RTGI to a lightmap? I don't think that's possible in 4.22 , probably in the future though.

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  • replied
    Very clean scene good job!
    Would it somehow be possible to store all you've already ray-traced (player camera), so that if you explore the whole room all the lighting will already be known...? So you have it at low fps the first time and (almost) never after for instance?

    Leave a comment:


  • replied
    Originally posted by 3darchstuffs

    LOL. What graphic card did you used for it?

    RTX 2080Ti Founder Edition. It's a 4 million triangle scene. Without RTGI it's about 20 fps.

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  • replied
    Originally posted by darthviper107 View Post
    If you're just doing renders though you can always just turn up the settings, even if it takes 5x longer that's still very very fast
    Increasing the samples didn't yield better GI and increasing bounce = driver crash. The frame rate for this image is 5-6 fps.

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  • replied
    If you're just doing renders though you can always just turn up the settings, even if it takes 5x longer that's still very very fast

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  • started a topic #rtxon

    #rtxon

    Just running a test with RTX features. I'm happy with the result the RTGI could be abit better,currently is create too much noise(1 GI bounce and 20 spp). I know that feature is experimental though, so the quality should improved in the future.

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