OptiX Denoiser created a horizontal yellow ribbon #95814
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Reference: blender/blender#95814
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System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.65
Blender Version
Broken: version: 3.1.0 Beta, branch: master, commit date: 2022-02-15 19:40, hash:
53fe4f62feWorked: n.a.
Short description of error
The OptiX Denoiser creates a yellow ribbon with the attached scene.
The resolution of the picture seems to cause the effect. At smaller sizes, it looks fine.
Blender 3.01 is freezing (actually) when the OptiX denoiser comes into account.
Exact steps for others to reproduce the error
Workaround: Switch to OIDN
The yellow ribbon will be changed to greenish by the compositor tree.
220216_Blender_OptiX_Bug.blend
Added subscriber: @Renderbicks
Changed status from 'Needs Triage' to: 'Confirmed'
Added subscribers: @pmoursnv, @Sergey
Can confirm on Linux and driver 495.44
@pmoursnv Do you mind checking if it's something similar to the issue which was worked on in 176654941868? Some integer overflow somewhere?
Added subscriber: @Raimund58
Yeah, this looks like a duplicate of #93710. That hasn't been fully fixed yet (the driver part is fixed in the last r510 drivers, but the same integer overflow problem is also present in the
optixUtilDenoiserInvokeTiledhelper function, which needs a SDK update to fix or will have to copy the function implementation into Cycles source code).@pmoursnv Thanks for checking! Shall we merge these two reports?
If we go the update SDK path, does it mean we'll bump requirement on the driver version?
Sure! But good point with the driver requirements ... Maybe better to reimplement the helper function or just copy those contents of "optix_denoiser_tiling.h" into the code and fix it (that particular file is under BSD 3-clause license, so no problem).
Closed as duplicate of #93710