custom node for color math

Blender's renderer and external renderer export

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Posts: 22
Joined: Thu Mar 29, 2012 6:26 am

custom node for color math

Postby wretch1958 » Tue Oct 30, 2012 1:33 am

Is there a node which allows the user to perform a custom function based on 2 RGB input values from different render layers?

For example, "if both pixels are red change to blue otherwise just add" would require a node with a formula:

if R1 == 1 and R2 == 1 and (G1, G2, B1, B2) < .1 then:
(Rout = 0, Gout = 0, Bout = 1)
(Rout = R1 + R2, Gout = G1 + G2, etc...)

If there is no such node could it be programmed?

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