Mia material with dirt or grime

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Old 02 February 2013   #1
Mia material with dirt or grime (Maya)

Hello guys, I'm trying to simulate a dirty chrome sort of like this for a truck that has some dirt and grease on it.
How would I add dirt/rust to an mia material? I've got a nice chrome material I'm just having trouble putting dirt over it.

Last edited by mykiscool : 02 February 2013 at 02:05 AM. Reason: clarity
 
Old 02 February 2013   #2
RE: Dirtmap

I'm not sure if this is the best way to do it but usually I plug in a color map and control the areas through specular and reflection maps.

I guess theoretically you could use a layered shader and tweak the tranparency settings but I haven't used this method myself.
 
Old 02 February 2013   #3
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