Making things look dirty and old

[the-warpig]

http://www.3dtotal.com/team/Tutorials/leafproject/leaf_8.asp


you should know how to use photoshop or some other graphic program that can do layers. basically you just add various subtle layers of grime and blend them all together using layer effects, layer masks, and other compositing techniques. dirt maps are great for realistic specularity.

i found that link just searching in google btw. :)

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