This node is used to smoothly push or pull values, based on a given bias amount.
Based on Perlin’s section in Texture & Modeling; see Bias VOP for implementation details.
Float value to be adjusted.
Amount by which the input value is adjusted. Bias above 0.5 smoothly increases the input, and bias below 0.5 smoothly decreases it. Bias of 0.5 will leave the input unchanged.