I wanted to apply the D-Noise filter to an animation and I suppose there must be a way to apply it as each still is rendered but I couldn't find it and had to start my render to meet a deadline. My stills are pretty noisy as I am using emission so would be great if there is some way to apply it to a folder.

I'm sure there is a way in Python but I cannot really do anything at all in Python so please any other way.

  • $\begingroup$ Do you mean denoise? $\endgroup$ Commented Sep 8, 2019 at 16:25
  • $\begingroup$ @RayMairlot They likely mean Grant Wilk's add-on (remingtongraphics.net/tools/d-noise) to use Nvidia's OptiX denoiser. $\endgroup$ Commented Sep 8, 2019 at 16:34
  • $\begingroup$ Did you have a scene for that animation? If you don't provide extra information to OptiX, then it won't work: D-NOISE for plane $\endgroup$
    – HikariTW
    Commented Sep 9, 2019 at 5:52

1 Answer 1


So it just turns out that if you render to stills and then use the Blender video sequencer to run those stills together into a video file you can just enable D-Noise at the bottom of the view 'Layer tab' - it slows things down a fair bit but it works a treat.

  • 3
    $\begingroup$ But... Optix is designed for stills. The output is different from frame to frame and can lead into glitches so I'd say unusable for hq animations. $\endgroup$
    – brockmann
    Commented Feb 17, 2020 at 9:58
  • 1
    $\begingroup$ Video denoisers seem to be pretty good at removing the remaining low frequency noise but can leave slight trailing artifacts depending on the settings and algorithm used. $\endgroup$
    Commented Feb 15, 2021 at 22:40

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