I saw this in other renderers, such as the Radeon ProRender or V-Ray and was wondering if there's an Add-on or Build for Blender to work around the limitations of Cycles' Denoiser.
1 Answer
No, there is not. From the Official Manual Denoising uses render tile information from the engine to make the necessary calculations for the image processing algorithm.
Denoising filters the resulting image using information (known as feature passes) gathered during rendering to get rid of noise, while preserving visual detail as well as possible.
To use the option, enable it in the render layers tab of the Properties editor. On rendering, it will denoise tile by tile once all the surrounding tiles are finished rendering.
It is not available for progressive renders, and as such doesn't work for viewport previews, which are a form of progressive render.
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$\begingroup$ Thanks. I rephrased the question so I can hopefully still get denoising for the viewport :) $\endgroup$– ValentinCommented Oct 23, 2018 at 17:38