Pop As Dop Source

[sanostol]

Hi,

To make it short I want to use a particlesystem that is emitted by a grid to create a steady stream of RBD Objects to use them in a simulation.

I created a particle system with a instance attribute. Then I created a DOP Network with a rbdpointobject. the point sop path is set to the popnet. the particle's life is set to 0 cause and the creation frame of the rbd point object is $F. My plan was that now on every new frame for each particle a new rbd object is created. somehow it works but for each object I get a second object created on the second frame of it's existance. how can I avoid this or better, how do I setup this the right way?

martin

here's the file....

pop_and_dop.hipnc

[SpencerL]

All you need to do is turn up the oversampling parameter on the pop network SOP to 2. This way your particle only lives for a single frame instead of 2 frames.

[craig]

Spencer, you clever boy - I wouldn't have thought of that.

An alternative, just for reference, is to use the kill POP. So a particle is born, and then it is killed. But it lives for one frame, enough to spawn a point object. See attached.

pop_and_dop2.hipnc

[SpencerL]

Yes Craig, I try...Ill even let you put that token of knowledge in your new book.

[sanostol]

Thanks again!

Martin

[MIguel P]

The trick is to kill the particles when they born. You can also use the inhertied velocity in a rbd fractured object. I attach an scene.

PartDops.hipnc

[sanostol]

Hey cool, so many ways to achieve this...

[quote name='MIguel P