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Happy Friday,

Trying to wrap my head around constraining or copying packed rbd's to particles that are moving along a surface. Attached is my test scene please help if you have time! 

Thanks,

particleRbdTest_01.hip  

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You can treat your packed rbds the same way you would a particle system. Setup your rbd network and plug your pop nodes in to the post solve (3rd input) of the Rigid Body Solver. 

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It might help to just think of your packed rbds as particles. You can apply all the normal pop forces to them, so the pop sim is maybe just extra. But maybe you like the pop sim's behavior or something, you could try looking up the point's position, and calculate a velocity vector towards that. Let me know if this helps at all.

particleRbdTest_01_jamesr.hip

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On 8/30/2019 at 5:51 PM, jamesr said:

It might help to just think of your packed rbds as particles. You can apply all the normal pop forces to them, so the pop sim is maybe just extra. But maybe you like the pop sim's behavior or something, you could try looking up the point's position, and calculate a velocity vector towards that. Let me know if this helps at all.

particleRbdTest_01_jamesr.hip

Thanks this is cool!

I'm actually trying to constrain the position and just have them self collide with each other if that makes sense... Right now they are tumbling as they move along the surface.

Best way I could describe what I'm trying to solve, if you could image that the rbd packed objects are like bikes or scooters so they move along the surface and rotate to the velocity but self collide. 

I'm still trying wrap my head around it.

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