Hello !

Im colliding particles against a RBD object, using the POPobject in a AutoDOPnetwork, and all is fine…until !

The RBD object that im colliding against is setup to dissapear, with a VOPSOP im coloring the points, creating a group with expression $CR > 0.1 and deleting the points in the group with a delete SOP, now this works fine, the VOPSOP is setup so in the end all points are red, meaning the entire object has been deleted.

Colliding the particles against it however does not work fine, each frame a point is deleted the particles seem to get unlimited velocity, so most of the particles are nicley falling down (gravity force) colliding against my RBD object, but some just get's thrown away like crazy.

I've tried set the RBD as a deforming object and manny other things, but it seems my approach deleting points is flawed from the start, so should I dissolve my object in some other way or is there a fix for this issue ?

/M

Maybe it becomes more clear if I post a .hipnc ?

I want to emit particles at the border where my sphere is “disolving” and also collide against the “disolved” sphere, and it does work except that the pop solver that's handeling “Bounce Particles” goes crazy when polygons are deleted in the collision model.

/M