if the particles are in motion, simply animating their emission rate to zero won't stop the momentum of the particles that already exist...it will only stop emitting new particles. I need them to stop all movement ... then be subject to animated forces from that point forward.
On May 16, 2012, at 10:34 PM, Diogo Girondi wrote: > Not sure I get what you're trying to do but what I usually do to freeze the > particles is to animate their emission rate from whatever to zero from one > frame to the other. > > > On Wed, May 16, 2012 at 11:24 PM, Ari Rubenstein <[email protected]> wrote: > Interesting... are you referring to the 'particle to geo' node ? And then > does it read back in as a point cloud essentially where each point (vert) > would emit only a single particle ? > > How do you resolve the rate with the amount of vert's ? > > Sent from my iPhone > > On May 16, 2012, at 7:35 PM, Torax Unga <[email protected]> wrote: > >> One way I can think of is to write them out as geo in that frame, read the >> geo back and emit one particle per vertex on the first frame. >> >> From: "[email protected]" <[email protected]> >> To: [email protected] >> Sent: Wednesday, 16 May 2012, 9:30 >> Subject: [Nuke-users] Set Initial State for Particles ? >> >> Is there a way to "set initial state" with Nuke particles ? >> >> I want to emit, drive particles into a configuration... then lock those >> particles in space (eliminating their momentum entirely), and then drive >> them with forces from that point forward. I was thinking I could spawn at >> a specific frame when the composition of particles is desirable... then >> turn off "conservation of momentum" for the spawn. >> >> But is there a more straight forward, efficient approach ? >> >> thx, >> Ari >> Blue Sky >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users ___________ Ari Rubenstein Creative Director www.curvstudios.com
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