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View Full Version : positive and negative bump without bumpcombiner?

Gal
04-04-2007, 05:21 AM
i was wondering if it's possible to have a positive bump map as well as a negative bump map rendered with mr without using bumpcombiner. i'm using math nodes to combine the 2 maps together but i can only go in 1 direction, positive or negative.. can i do both? offset it somehow?
Jaidek
04-04-2007, 01:47 PM
Hey Gal,

What I typically do when I need a bump map to bump in both directions is run it through a setRange node. You could connect the output of your math node into the value of setRange. Then input the following:

Value: (should be connected to desired node/image)
Min: -1 -1 -1
Max: 1 1 1
Old Min: 0 0 0
Old Max: 1 1 1

Now connect the setRange Out Value.x into your bump2d's Bump Value. Basically this tells Maya wherever black is the value will be -1 instead of 0. So your grey point will become 0 now.

Hope this helps! :D
Gal
04-04-2007, 09:28 PM
great thank you
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04-04-2007, 09:28 PM
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