openCl noise
MacPro 2012 Xeon
2x GTX 1070 Ti
CPU Rendering openCL Rendering
Any idea what can cause this? I observed similar with Lux in Blender 2.8 on the macOS side.
Noise artifact with openCL
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Noise artifact with openCL
Oddly when using the pattern when rendering looks horizontally stretched and when turning on denoise
openCl noise CPU noise Win10
MacPro 2012 Xeon
2x GTX 1070 Ti
CPU Rendering openCL Rendering
Any idea what can cause this? I observed similar with Lux in Blender 2.8 on the macOS side.
openCl noise CPU noise Win10
MacPro 2012 Xeon
2x GTX 1070 Ti
CPU Rendering openCL Rendering
Any idea what can cause this? I observed similar with Lux in Blender 2.8 on the macOS side.
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epilectrolytics
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- Posts: 790
- Joined: Thu Oct 04, 2018 6:06 am
Re: Noise artifact with openCL
Hi and welcome to the forum,
the horizontal noise patterns are an artifact of OpenCL Sobol sampling on the GPU.
OIDN is not trained for this and then gets creative with it
To avoid that just use the random sampler (Render properties/light paths/advanced/Sampler).
the horizontal noise patterns are an artifact of OpenCL Sobol sampling on the GPU.
OIDN is not trained for this and then gets creative with it
To avoid that just use the random sampler (Render properties/light paths/advanced/Sampler).
Re: Noise artifact with openCL
@epilectrolytics
Thank you for the tip! Everything works fine now!
Thank you for the tip! Everything works fine now!
Re: Noise artifact with openCL
It is a known property of our OpenCL Sobol sampler. The stripes will vanish once more samples are rendered. Only switch to the random sampler if you really need to stop the rendering with such a high amount of noise for some reason.