Forums > Jitter

leaves blowing in the wind


David Beaudry
Feb 12 2010 | 8:39 am

It sounds so poetic, yet so difficult to create. Actually maybe not too terrible. Working on a project where I’m tracking a performer on stage and what to create a trail of leaves behind her as she moves and swirls on stage. I’ve done quite of playing with the jitter particle engines over the past couple days, and have come close playing with the donut particle engine with the texture map. But nothing quite simulates the leaves floating on air. So my current thought is to create 20-30 planes via jit.gl.gridshape, give them all a lovely texture, and somehow develop my own physics for them floating in wind and off to the distance.

Does this sound reasonable? Are there jit.gl.leaf and jit.gl.wind objects? ;)

TIA,
David


Ad.
Feb 12 2010 | 10:37 am

Have a look at pmpd (physical modeling) for max.
Here : http://www.mathieuchamagne.com/category/code/
Ad.


justin
Feb 12 2010 | 5:31 pm

maybe make 3d models of the leaves, and use jit.gl.model with matrix output…
maybe then use that with jit.gl.multiple and your particle / physics engine.

cool thing with your own 3d files is u can then UV map the textures. a dab of lighting, camera, action…

sounds all good in my head, but i’m sure it’s probably not that straight forward!


David Beaudry
Feb 14 2010 | 7:45 am

@Ad: thanks for the reminder of the physical modeling codes. Great stuff there!

@Justin…yeah it all SOUNDS easy enough, eh? Thanks for the advice…I’ll see what I can do.

Best,
David


thom_27
Aug 10 2010 | 12:45 pm

Hi guys,

David, I’m trying to create a similar effect. I’d like autumn leaves to subtly ‘blow’ away from the tracked user. I’m using a ceiling-mounted camera, cv.jit.touches to blob track and then I’m trying to feed in the blob co-ordinates to jit.gl.model… having a bit of trouble understanding where these co-ordinates should link to jit.gl.model though.

Which method did you end up using and how did it turn out?

Many thanks,

Tom

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