Change rotation of every particle by their collsion

Hi

I have got a question: Is there any possibility to have a particle system
which particles face into the normal direction of the hidden mesh by its
collision with that?

Till now I did it with a damp value of 1 but this is not the perfect result I want to get

Is there a "On..."-message that is send to each particle if it enters a collision?
I'm not able to find something like that...

Thanks for helping me
Maddes

 

It just so happens - http://docs.unity3d.com/ScriptReference/MonoBehaviour.OnParticleCollision.html

 

Yes, I know about that but "
TheParticleSystem will receive at most one message per Collider that is struck" and this is not the result I wanna have.

It should be sent every particle that hit a Collider. Only then I can rotate the particle in the direction of the Colliders normal.

 

Good point but If you read a bit further down

 

But how should I be able to rotate the one particle that fits to a several collision event only with the information saved in CollisionEvent?
Would that mean that i have to check every particle of the particle system if it's position is nearly equal to the intersection point to manipulate it?
I think that would be a very waste of performance... :/

 

It sounds like you should get an array of CollisonEvents one for each particle involved.

http://docs.unity3d.com/ScriptReference/ParticleSystem.CollisionEvent.html

It looks like the CollisionEvent.normal is just what you are asking for?!

 

Yes, thats the normal vector of the hiit surface but I don't know how I'm now able to rotate the particle that did this hit into the same direction.

explanation: i have a bullet that instantiates a particle system by hitting a wall. Now the particles fly throw the room but I want them to face in the same direction as the normal vector is when they hit another object. That should simulate a splash of color on the object.

 

Hi, a couple of years have passed. Did you manage to solve the problem?