BOXSTEP
THE BOX'S MAIN HELP:
This function returns a clamped linear interpolation between A and B.
A (input):
The opening value of the filter. This must be a scalar. The filter width is defined by B - A.
B (input):
The closing value of the filter. This must be a scalar. The filter width is defined by B - A.
X (input):
This is the edge value. It must be a scalar.
OUT (output):
This function returns a clamped linear interpolation between A and B.