Major regression in denoising quality in new builds #52322
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Reference: blender/blender#52322
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System Information
Win10 64 bit (Creators update); 24 gigs RAM; i7 3770 CPU; AMD 7xxx GPU
Blender Version
Broken: hash
3c14f02
(August 7)Worked: hash
a27b6ae
(July 22)Short description of error
The denoiser has taken a nosedive in recent builds as far as quality is concerned (a number of image features seem to not be detected anymore for one thing). This is being seen using CPU rendering.
Image from the July 22 build (also applies to 2.79 RC)
Image from the August 7 build
Settings
Exact steps for others to reproduce the error
Open the .blend file and render (once in an older build and once in a new build). You can see that it will not be due to the change in sampling because the good image was done with a min-bounce value of 3 (making the un-denoised version very similar to the same in newer builds with the same amount of samples).
.blend
Cycles_GlassTest.blend
Hope this can be addressed quickly :)
Changed status to: 'Open'
Added subscriber: @Ace_Dragon
Added subscribers: @LukasStockner, @LazyDodo
@LukasStockner mind taking a peek here?
Added subscriber: @brecht
Probably my fault, I'll look into it.
I couldn't repro this on Linux, with the various SSE kernels. So maybe Windows specific, will check that later.
This issue was referenced by blender/cycles@7bad374b8c
This issue was referenced by
267e75158a
Changed status from 'Open' to: 'Resolved'