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From Odwiki

Bias as an interpolant

In some SOPs, bias is used to refer to the amount of one of two inputs. A bias of 0 will choose more of the first input while a bias of 1 will choose more of the second input.

Bias in RayTracing

Please see RayBias / ShadowBias

Perlin's Bias() function

• We have a VEX implementation of Perlin's bias() function in wikiMath.h.
• We have a CustomExpressions implementation of Perlin's bias() function in wikiExpressions.expr.