FISHEYE_LENS

THE BOX'S MAIN HELP:

This implements a depth of field lens effect.
FAC is the radius of the disc centered at the camera.

FAC (input):

This must be a scalar.  The default is 1.0.
There is no effect if this value is 0.0.

GEL (input):

This must be a color.  The default is WHITE, no additional color.
This is a color gel applied to the lens.

OUT (output):

This is the returned color.