Detect particle collision

[Abyss]

Hi, babylon js developers! Please help me :).

I want to detect particle collision with camera elipsoid, and when particle will collide - destroy this particle.

Can i make this in particle system update function or how? Babylon js can make this for me?

[Abyss]

If somebody interested, i found one method. In particle system update function i create BABYLON.path3D() between particle position and camera position, now i can calculate distance between this points, and if distance lower then need, just remove this particle.

This method not bad, but in my case, i have to many particles, and performance are very bad. Maybe i should optimize particles, will keep trying.

[GameMonetize]

Pinging our physic engine god @RaananW

[jerome]

creating a Path3D object for each particle test is a little overkill 

The fastest way would be, imho, to compute in turn the (squared) distance from each particle to the cam ant to compare it to the wanted (squared) distance.

http://doc.babylonjs.com/classes/2.4/Vector3#lengthsquared-rarr-number

something like :

var limit = 10; // your value
var squLimit = limit * limit;
var squDist = 0; // current squared distance
var vector = BABYLON.Vector3.Zero(); // current particle-cam vector

// loop for each particle
...
particle.position.subtractToRef(camera.position, vector); 
squDist = vector.lenghtSquared();

if (squDist < squLimit) {
  // recylce your particle
}