Inigo Quilez Gain (3 Channels)
Remapping the unit interval into the unit interval by expanding the sides and compressing the center. This was a common function in RSL tutorials (the Renderman Shading Language). k=1 is the identity curve, k<1 produces the classic gain() shape, and k>1 produces "s" shaped curces. The curves are symmetric (and inverse) for k=a and k=1/a.
Inputs
- 1
- 2
- 3
- 1
- 2
- 3
Power - Integer
pass through - From 1 to 99
Through Mean - ON/OFF
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