Tree animation

malyskolacek · 2004-01-20T23:14:03

Hello! I need some help with implementing tree animation. Actually, the problem is with animating the foliage. The leaves are rendered as textered quads that are not billboards. I would like them to somehow wave in wind. Any ideas? I really need help with this problem, thanks!

Graphics and GPU Programming Programming

Started by malyskolacek January 12, 2004 02:53 PM

11 comments, last by malyskolacek 20 years, 2 months ago

malyskolacek

121

Author

January 18, 2004 01:04 PM

quote:Original post by mikiex
get hold of the speedtree demo for inspiration

I know these demos. One thing I don''t like about it are the lower LODs of the trees.

sBibi

241

January 18, 2004 06:53 PM

the faked billboards they use for the grass and tree leaves are horrible IMHO...
just go under a tree, look around, and as you rotate the view, you''ll see those billboards penetrating branches :|
also, some of these billboards don''t hold to anything and just swing around in the air... :|

Anonymous

January 20, 2004 11:14 PM

Tree movement is a classic application of modal analysis (the first modal analysis paper in graphics, by Stam, was on trees). However Stam''s own implementation looked terrible.