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I want particles to collide off one surface (hard object) then die on the second (colliding with water). Both are easy on their own but I can't seem to figure out how to accomplish doing both in one particle system. is this possible!?

Thank you

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    $\begingroup$ Doesn't just having one object set up as "Collision" and the other as "Collision (kill particles enabled)" work? i.stack.imgur.com/rNV6B.gif $\endgroup$
    – Nicola Sap
    Aug 10, 2017 at 13:46
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    $\begingroup$ Yep that works. So simple and it still eluded me for about 3 hours. Thank you mate! $\endgroup$ Aug 10, 2017 at 14:50
  • $\begingroup$ @NicolaSap - Can you add that as an answer? $\endgroup$
    – bertmoog
    Aug 10, 2017 at 14:58
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    $\begingroup$ @bertmoog sure, done! $\endgroup$
    – Nicola Sap
    Aug 10, 2017 at 15:11

1 Answer 1

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Yes, it's possible: collisions are defined per-object, not per-particle system, so you can define as many types of collisions as you want.

Just enable the "Collisions" physics on both objects, checking the "kill particles" box only for the second one.

enter image description here

If the second object comes from a water/ocean simulation, make sure that the "collision" modifier is the last one on the modifier stack.

enter image description here

(for clarity, in my example I've checked "Render dead particles")

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