animating grass

[proces2]

has there been a topic about creating animated grass - as though a breeze were blowing it side to side? if not, any suggestions on technique or were to start?

i have to improve upon a crude animation that was started by another firm. they wondered about the ability to have the grass flow as if a breeze were blowing across it.

sean

[zerofractal]

have you tried grass-o-matic?

http://www.maxplugins.de/r4_files/sisyphus/druid.zip

[proces2]

that's what i have used in the past to create grass for stills. and now that you mention it again, i just remembered that it has the dial for 'wind'.

thanks!
sean

[3dform]

As long as Grass or Hair don't move, you are the winner. You can make perfect animation with incremental GI maps.
But If it moves, you are lost!
It's like switching from irradiance map to direct comp. in time and effort. Try using Shag:Hair as environment effect, it's the only way to get this going.

Side note: If you move far away from displacement grass or hair, you need a prman , the AA effort for such a rendering is to much for a raytracer.

rober

[Da_elf]

hehe. actually ive done a shot before which was super low angle with a very wide angle lens and there was blowing grass right infront of the camera using grass-o-matic and i just used a new irradiance map per frame with no problems

[Biohazard]

FYI.
I've experienced some times a bad OSM (object space modifier) with grass-O-matic.

But in most cases, with "no too complicated" scenes, it may work and fit expectations perfectly. plus, the anim settings for the wind are quite good.