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Painting effects

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Hi all, I'm trying to find information about how to apply different paint effects like oil, pastel, crayon etc. All I keep coming up with is links to software like Photoshop etc. but what i'm looking for is the actual algorithm to render these effects. For example, given a graphics path which is made of lines and beziers, I want to be able to render that path to make it look like it was drawn in crayon (or chalk, or oil etc.). I would really appreciate any help you can offer! Thanks in advance

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Can't help you directly, but the term for that kind of rendering is Non-Photorealistic Rendering (or NPR for short). If you search for that you should get more relevant results.

If you do continue this, I'd love to hear about it, since I think it's a pretty interesting topic. I've got it somewhere on my todo list as well :D

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That's exactly what I needed - a definition of what exactly i'm looking for! Thanks very much.

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