Hey guys

I have a question about per particle collisions in flip.
How easy is it to set something like this up.
Say i have an emittter that emits into a flip container and i have two objects that the particles can collide with, along with the ground plane. On the particles i have an attrib that can be either 0 or 1, and based on that attribute the particles either collide with the first or the second object.
I know how to set something like this up in pops however im not entirely sure how one would go about setting something like this on a FLIP sim.

I can attach a simple scene if this doesnt make sense, but it would be very helpful if someone has an idea.

Thanks

FLIP is the issue.

Particles usually don't ever collide in a FLIP simulation, they get deflected before the collisions. This is due to the velocity field taking the collider into consideration, and the particles then following the velocity field.

Thus, while you could turn off collision for those particles, the global velocity field will still cause them to avoid it.

You could remove those two objects from the fluid solve, so they are only particle colliders. However, then you won't get the pressure solve to allow the fluid to pile up on top, you'll find the fluid sinking on to the surface of the objects.

Thanks Jeff

I thought it was a long shot, but i still wanted to know what you guys have to say.