GLOWING

THE BOX'S MAIN HELP:

This shader simulates a glowing surface.
NN  is the surface normal.
II  is the incidence vector.
ATT controls the rate of the falloff for the glow.
FRM is the current frame.
FPS controls the speed of the glowing.
GLO is the glow color.
OP  is the opacity at the center of the glow.

NN (input):

This must be a normal.  The default is the surface normal, N.

II (input):

This must be a vector.  
The default is the opposite of the camera vector, -I.

ATT (input):

This must be a float.  Default is 2.0.
It controls the attenuation of the falloff for the glow.

FRM (input):

This must be a float.
Default is a constant glow or 0.
This is the current frame.

FPS (input):

This must be a float.  Default is 1.0.
This controls the speed of the glowing.
Frames-per-second is a good start for animation.

GLO (input):

This must be a color.  Default is WHITE.
This is the glow color.

OP (input):

This must be a color.  Default is WHITE.
This is the opacity at the center of the object.

OI (output):

This is the returned opacity.
It simulates a glowing object.

CI (output):

This is the returned color.
It simulates a glowing object.

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