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Diffuse material looks weird/noisy

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Kensho Woo
Diffuse material looks weird/noisy
on Dec 25, 2018 at 3:45:47 pm

I can't figure out why the material has a fuzzy static on it. Google did not help.
I am using R19. I'm trying to put color with reflectance instead of using the separate color channel to make the render faster


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Brian Jones
Re: Diffuse material looks weird/noisy
on Dec 25, 2018 at 5:31:33 pm

to clean up the grain you have to go down to Layer Sampling in the reflectance controls and increase the Sampling Subdivisions to whatever it takes to clean it up. This will slow your renders by a lot. Color in reflectance is not faster it's slower but it is a form of GI so this can be a good trade off. It depends on what you need for your final look. And whether normal GI with standard materials is faster than a reflectance workflow (that can depend on the scene). If you don't need a GI look then use standard materials.


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