particle constrain to mesh

[carl.Cartesian]

hello

so, I'm trying to constrain particles after they collide with an object. I need to particles to "slide" over the surface after they hit. so that they look like they are migrating.

Any ideas?

[sunder]

After you set the obstacle, set the obstacle Physical Friction to 0.5 or higher and Elasticity to 0. Then go to the Envir. PPG of the PType. There, set the Elasticity to 0 and the Friction to 0.5 or higher. You may need to play with these values to control the slippery-ness of the surface. Good luck :)

[carl.Cartesian]

yeah. thanks. that helped. Didn't think to set the PType's friction as well....

As per the effect I'm looking for, its a subtle thing....I need to particles to behave as if they're migrating over the surface......in fact, they need to turn around and go in a specific direction once they have collided with the surface. This is taking place in a "cave" like structure and particles that hit the floor or walls need to behave the same way....

I just crossed over from Max (after ten years) and now am working full time in XSI. D-T's DVDs have been REALLY helpful in making the transition.

Thanks Again.

cC