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  • #1

    Denoiser is not Updating

    Hello guys! lately, using the Chaos Vantage software and I came in front of a major issue.
    The denoiser is not updating. And that ruins the final result. I have to push it all the way to 100 and then back again to the value I want in order to show the actual result...
    Any tips?
    Than you in advance!!

    ps: the graphic card is a 3090
    Tags: None
  • #2
    Hi, there is a brief description of what the denoiser slider does here: https://docs.chaosgroup.com/display/LAV/Toolbars

    Basically, this is a real-time denoiser for interactive use. It's optimized to work fast at high framerates, which results in some quality compromises, as you may have noticed. This is why when it is set at less than 100% we stop it after a while and blend the last denoised image with the current raw raytraced image. This is supposed to provide some middle ground compromise in quality.

    Are you trying to render a "snapshot"/offline image with the denoiser?
    Nikola Goranov
    Chaos Developer

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    • #3
      Hi Nikola,

      Thanks for your fast response.
      Well, I was trying to render a sequence and a snapshot to see if it reacts in a different way.
      It is shame though because it seems that the software has the capabilities to denoise it properly.
      I have no experience in coding so forgive me if I say something stupid, but maybe you have to add an option to control this feature and how fast the denoiser stops.
      Maybe the preview denoiser could be like it is right now and the production denoiser could act in a linear way... Is it makes sense?
      Thanks again for your time!

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      • #4
        I'm not sure what you are trying to achieve. If you don't want the denoiser to stop, can't you just keep the it at 100%?
        Nikola Goranov
        Chaos Developer

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        • #5
          I was trying to achieve an intermediate result.
          It seems for instance that when I have it on 50% the result is different if for the same preview I put the value 100 and then back to 50 again.
          Maybe because as you mentioned the denoiser stops and then continues up to 100 and then back to 50. So it denoised more the image.

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          • #6
            Yes, if you first let it render at 50% it will update the denoised image for N frames/samples and will keep the N-th denoised image for blending with future raw images. When you slide to 100% it will denoise the current raw image which has M (M > N) samples, so it would be cleaner. And when you slide it back to 50% again, it will keep blending the raw image with the denoised M-th frame.

            So you'd like to have control over when the denoiser stops updating (N in the above example), right? We will consider your feedback. We're trying to avoid having too many knobs and options -- I guess that's why there is no control over this currently. It's a tricky balance
            Nikola Goranov
            Chaos Developer

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            • #7
              Two stupid suggestions, because I don't know how the algorithm works.
              - If the denoiser wouldn't stop and the percentage would control how much it blends.
              - Or if it would stop at 50 or 60 or 70 and before it saves the image automatically jumps to 100 and then back again to the original value.
              I know what you are thinking about now... WTF this guy is saying... hahaha.
              Well, it is a great software already and thanks for all your hard work!

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