Particles Collisions

Controls how particles interact when they intersect each other.

Properties

Key	Type	Example	Notes
`enable`	`boolean`	`true` / `false`	Enables particle-to-particle collision handling
`mode`	`string`	`"bounce"` / `"destroy"` / `"absorb"`	Collision behavior
`bounce`	`object`		Bounce tuning options, see IBounce
`overlap`	`object`		Initial spawn overlap handling

Mode	Behavior
`"bounce"`	Particles bounce off each other preserving both particles
`"destroy"`	One particle is removed after impact
`"absorb"`	One particle absorbs another, increasing size/mass effect

{
  "collisions": {
    "enable": true,
    "mode": "bounce"
  }
}

{
  "collisions": {
    "enable": true,
    "mode": "destroy"
  }
}

{
  "collisions": {
    "enable": true,
    "mode": "absorb"
  }
}

Controls how initial particles are placed when collisions are enabled.

Key	Type	Example	Notes
`enable`	`boolean`	`true` / `false`	If `false`, overlapping at spawn is prevented
`retries`	`number`	`1`	Number of attempts to find a non-overlapping spawn position

{
  "collisions": {
    "enable": true,
    "overlap": {
      "enable": false,
      "retries": 5
    }
  }
}

Enabling collisions with very high particle counts can be expensive in large canvases
Using mode: "destroy" without emitters can reduce particle count quickly
Setting overlap.enable: false with low retries can still allow occasional overlaps in crowded scenes