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# 1 04-01-2006 , 02:44 PM
edoplaza's Avatar
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Paint effects and Mental Ray

I noticed I can't render paint effects with Mental Ray (am I wrong?)

I figured out a simple solution: to convert the paint effects into a poly mesh. But, what about if I want to animate all that?

Is there another solution?

# 2 04-01-2006 , 05:09 PM
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paint effects will not render in mental ray unless to convert it to polys.

Maya will keep all the stroke history so animation does not get lost in the conversion.

# 3 04-01-2006 , 06:06 PM
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thanks for the answer roach105!

# 4 04-01-2006 , 07:24 PM
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By the way, I'm trying to create a tree with paint effects. When I convert the stroke into polys everything goes ok. But when I try to manipulate the original stroke, everything goes slow! I can't even move my perspective camera without trouble. Is this something to do with the graphics card??? I have a Nvidia 5200 - 256- and 1 giga of ram memory.

# 5 05-01-2006 , 07:38 PM
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my recommendation is to manipulate the stroke to what you need before converting.

# 6 07-01-2006 , 01:03 AM
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I painted this tree for a composition I'm working on right now; it took me like 2 hours to get acceptable results (too many parameters: mesh, branches, flowers, buds, leaves, etc., etc.). At the end, the thing was hugh, specially when converting to polys: more than 3 million faces! Even with 1 giga of ram, Maya crashed badly.

Later I saw the problem: I had too many subdivisions (7 for each branch, 4 for each leaf and so on). I reduced all that and then, I got a nice 300.000 faces polygon tree...

Then I duplicated the poly tree and moved the copy a little to the right, faking a bigger tree.

I saw at CGTalk a different approach: render the tree in Maya software and then compose it with the rest. As I'm not sure how to do that, I chosed the first way.

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