This page provides information on the V-Ray denoising tool available on all platforms.

Overview


The V-Ray installation includes a standalone denoising tool called vdenoise that can be used to denoise still images or animations outside of Cinema 4D. This is especially useful for animations because the standalone tool can look at multiple frames simultaneously 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. 

Note that there is no GUI version of the Denoiser tool for macOS.


Installation


The vdenoise tool is a part of the V-Ray for Cinema 4D installation. You can quickly open a command prompt in the folder where the vdenoise tool is located or run the executable to bring out vdenoise's GUI.

On Windows, the vdenoise.exe is located in C:\Program Files\Maxon Cinema 4D Rnn\plugins\V-Ray\tools, where nn is the Cinema 4D version. You can also start it from the Start Menu > Chaos Group > Denoiser tool.

On macOS, the vdenoise executable is located in Applications/Maxon Cinema 4D Rnn/plugins/V-Ray/tools, where nn is the Cinema 4D version.


Generating the Needed Render Elements


The denoiser adds several render elements in order to work optimally. They are automatically added along with the Denoise element to your scene.



Offsetting the Denoiser Output


 To offset the frame number of the output file, use the the following flag:

-outputOffset=n

This takes an integer n to offset the output denoised frames of animation. The default value is 0, which does not offset the frame numbers.

For example, the following flags can be added to output frame numbers 0010, 0011, 0012, ..., 0030:

-frames=0-20 -outputOffset=10

Negative integers can be used as well. The following flags can be added to output frame numbers -004, -003, -002, ..., 0016:

-frames=0-20 -outputOffset=-4