MATTE

THE BOX'S MAIN HELP:
This shader simulates a matte surface.
Ka is the coefficient to the ambient function.
Kd is the coefficient to the diffuse function.
AMB is the ambient surface color.
DIF is the diffuse surface color.
OP is the surface opacity.
NN can be used to add a bump pattern or texture.

Ka (input):
This must be a float.  The default is 0.1.
Coefficient to the ambient function, controls the intensity 
of the color returned from the ambient function.

Kd (input):
This must be a float.  The default is 1.0.
Coefficient to the diffuse function, controls the intensity 
of the color returned from the diffuse function.

AMB (input):
This must be a color.  The default is blue.
This is the ambient surface color.

DIF (input):
This must be a color.  The default is blue.
This is the diffuse surface color.

OP (input):
This must be a color.  The default is WHITE.
This is the surface opacity.
Transparent is black; completely solid is white.

NN (input):
This must be a normal.  The default is N, the surface normal.
This affects the normal for purposes color shading.

OI (output):
This shader simulates a matte surface.
This is the returned opacity.

CI (output):
This shader simulates a matte surface.
This is the returned color.

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