Particles collision callback ?

[VincentAbert]

Hi!

There's an entire page in the scripting section of the manual focused on collision callbacks:
http://obi.virtualmethodstudio.com/manua...sions.html

Using this, you can get a list of all contacts generated each frame (either particle-collider, or particle-particle).

kind regards,

I knew it existed, thank you !!

I do have two follow-up questions after trying it out:
First I am a bit confused by the fact that collision point are Vector4 and not Vector3, are just the x, y, z components of the Vector4 the world position ?
Secondly, contacts keep existing after the original impact : I'm guessing I should check the relative speed of the two bodies, but I'm not sure what the best way to do that is, whether I should use one of the 'impulse' floats (normal impulse, tangent, bitangent, stick..?)... I'm also a bit concerned it might be quite expensive to check every contact as well as their relative velocity every frame ?

Thanks a lot for your help !
[url=http://obi.virtualmethodstudio.com/docs/struct_oni_1_1_contact.html#aa758d2c4172da3f24bfe74acd2a290f7][/url]