Lets you define the type of exponential operation the shader will perform. Uses a simple exponential power operation, where input 1 is the base to the power of the factor input.
The inverse of power.
Uses the Factor input to specify the amount of bias. The bias should be seen as a Contrast function. 0 for darkest; 1 for
lightest.
Uses the Factor input to specify the level of gain to be applied, ranging from 0 to 1.
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