Birth particles on shape surface?
#5
(04-04-2019, 10:57 PM)tyFlow Wrote: The only way to do 2-way interactions like that is with PhysX. So you could use a Spawn operator in "random on shape surface" mode to generate particles on your shape, then send them out to another operator where they are bound back to that shape with a PhysX Bind operator. Make sure you have a PhysX Shape operator on your shape prior to the spawn operator, so all the resulting particles will be PhysX meshes.

Thanks for the reply.  I've actually been doing some really successful sims using physX between rigid bodies and splines that have amazing two-way interaction.  Soooooo sweet and easy to set up!

I was looking for a the "random on shape surface" mode in Spawn, but only see a "parent shape surface" option which doesn't appear to distribute the spawned particles evenly or randomly at all.   Also, I can't for the life of me figure out how to spawn from the shape of a particle in one event without that original particle inheriting the new operators (shape, etc) of the newly spawned particles.  I've tried to use the "send out" operator but that does what it says and passes the original birth particles to the next event.  I'm looking for a way to send just the surface position data to the spawn so they know where to be spawned, but my orig particles keep all their original shape, etc.  Once again, probably overlooking something obvious here.

Ok, I tried using a SPAWN in the original Event, then piped that output into the new event with another Spawn to distribute new particle and checked "delete parent" to kill the original duplicate spawn.  Is this the right way to do it?
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Messages In This Thread
Birth particles on shape surface? - by mitchfx - 04-04-2019, 09:24 PM
RE: Birth particles on shape surface? - by tyFlow - 04-04-2019, 10:05 PM
RE: Birth particles on shape surface? - by tyFlow - 04-04-2019, 10:57 PM
RE: Birth particles on shape surface? - by mitchfx - 04-04-2019, 11:47 PM
RE: Birth particles on shape surface? - by tyFlow - 04-05-2019, 12:41 AM

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