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Smooth Step

An S-curve ramp. 0 below Edge0, 1 above Edge1, smooth in between.

Smooth Step node

The Smooth Step node

When to use it

An S-curve ramp. 0 below Edge0, 1 above Edge1, smooth in between.

The standard way to turn any value into a soft mask, and better than Compare for anything that ends up visible, because the slope is continuous at both ends instead of jumping.

Putting Edge0 above Edge1 works and inverts the ramp, which saves a node when you want the mask the other way round.

Pins

Pin Type Description
Edge0 Number Below this the answer is 0.
Edge1 Number Above this the answer is 1.
Input Number The number to work on.
Pin Type Description
Result Number The answer.