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cwalrus

How do you get a grain sim to assume the xforms of its source?

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I have a ball.

 

I throw ball. 

 

I turn ball into ball of snow; i.e. snowball.  via POPGrains.

 

The sim just drops the ball like a lead balloon at that point, rather than assume the trajectory etc of the animated obj.

 

Any tips? thanks!

 

 

ps interesting similar workflow here, but doesn't solve it:

https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&p=188751#188751

 

 

 

 

 

 

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I believe you need to have initial velocity for it to work. Also, you can try the targetP attribute -which makes the grains to try and follow the animated geometry.

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Could you tell me specifically how to set that up? Where do I put what node, etc...

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The POP Grains help page has a KeyframedGrains example. It's instructive but fairly advanced set-up. 

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