Bias

What is it about?

This page documents the Bias node of the Redshift renderer in Cinema 4D. It bends values along Ken Perlin's bias curve — a one-parameter way to push mask mid-tones brighter or darker, similar to a gamma tweak.

Returns a curved bias of Input by Bias, using the following Ken Perlin formula: pow(Input, log(Bias)/log(0.5)).