Mutual interaction between particles and bullet

[quryo]

bullet-pop-mutual.hipncHi,

I'm trying to make particles interact with a bullet object, but at the same time the bullet object should influence the particles.
This works to some extent using a mutual collide relationship, but it seems that the particles basically have infinite mass, as they just push the bullet objects away.

The only information I was able to find on this was about influencing bullet objects with particle forces.

Please see the attached file for a small test. Another thing that's weird is that the behavior changes when I switch the input order in my DOP merge node even though the  Affector relationship is set to Mutual.

thanks
qu
 

 

 

 

bullet-pop-mutual.hipnc

Edited February 1, 2017 by quryo

[Birko]

hi qu,

if you make something physical issues you may need to investigate physics .For instance, Mass and Velocity is very important for collision or mutual integrations etc. 

bullet-pop-mutualv2.hipnc

[quryo]

Thank you, that works the way I want it to if I change the popcollisiondetect to collide with the rbd box (rbdpackedobject1)

I still don't understand why the order in the merge node matters, since I assumed that it doesn't when the relationship is set to Mutual.

 

[younglegend]

Using POP properties node, you can give random mass to the particles based on id. Something like (fit(rand(@id)+0.253,0,1,100,1000)). Just make sure you don't go higher than the mass of the bullet object. Cheers!

Edited February 2, 2017 by kishenpj