Hey there!
I’m having a problem with my particles, they are leaking through the mesh, and i don’t know why!
Check the picture.
The Integration step is 1/8, and the collision offset is put at 0.125, it’s like my mesh is leaking by a side, i’ve tried with a maximum number of collisions of 500, btu the result is the same.
Some ideas?
Cheers.
hey!
Long time since this post, but I’m facing the same problem again… some ideas?
Cheers.
Can you upload a simple scene that reproduces the problem?
I cannot tell from looking at the screenshot, since everything looks ok to me…
Sorry for the lack of answer, I’ll upload a sample scene ASAP
Cheers.
Sorry for the delay.
I now have time, i’ve built a simple scene, nothing fancy, there are two planes, and i want particles to collide on both, i don’t have elasticity, and the second plane is leaking particles everywhere, the particles don’t stay in the plane no matter how many polygons do i have in the plane, and no matter how much offset do i set.
no_collide.max (232 KB)
Cheers.
This one is easy.
Simply move the Force operator above the two Krakatoa Collision operators.
Alternatively, you can place the two collisions in the global event so they are the last thing calculated before the integration.
The collisions must be always calculated after the forces have be applied, otherwise the collision will occur first, then the force will add new velocity to the particle and the PFlow integration will move the particle past the collision surface.
I am sure there ARE cases where it is leaking, but this is not one of them. If you find one of those, please post it!
Thanks Bobo.
I’ll re-check my other scene with those things in mind and see if it solves the leakng 
Cheers.
