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This page contains information on the V-Ray standalone denoising tool.

Overview

The V-Ray installation includes a standalone denoising tool called vdenoise that can be used to denoise still images or animations outside of 3ds Max. This is especially useful for animations because the standalone tool can look at multiple frames at once and produce a better denoising result. The vdenoise tool works with either .vrimg or multichannel OpenEXR files and writes out files with the same format. You can write those files out of 3ds Max through the V-Ray raw image file output options in the V-Ray Frame Buffer rollout.

Installation

The Denoiser tool is installed along with V-Ray for 3ds Max and can be found through Start Menu > Programs > V-Ray for 3ds Max > Tools > Denoiser Tool. 

Start the vdenoise executable from C:\Program Files\Chaos Group\V-Ray\3ds Max 201X\bin

Generating the Needed Render Elements

The denoiser needs several render elements in order to work optimally. The easiest way to generate these render elements is to add the VRayDenoiser Render Element to your 3ds Max scene.