if I understand correctly you talk about moving effects, like wind ?
But the problem really comes from the polygon count from the leaves and branches themselves, no matter if you have additional effects. That is why there are so many third party tree renderer, because creating custom trees from scratch is a massive resource eater for any studio. Tree renderer solve the "species" problem (you can buy from a library) and they are made to perform well and look reasonable -- which is very hard to achieve. That is why some companies have (rightfully) found a business model in selling trees and foliage to cinema and game studios.
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06-21-2010, 12:26 PM
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