{
  "id": "particle_system_basic",
  "name": "Particle System Basic",
  "description": "UNVERIFIED — Foundational create_particle_system template: a grid-SOP emitter feeds a Particle SOP with a tunable lifetime and birth rate, rendered through a Geometry COMP with a point-sprite material. Controls expose birth rate and lifetime so the artist can dial it without reopening the network. Use as a starting point for any particle-driven look.",
  "tags": ["particle", "basic", "foundation", "generative"],
  "difficulty": "beginner",
  "td_version_min": "2022",
  "nodes": [
    { "name": "geo", "type": "geometryCOMP" },
    {
      "name": "emitter",
      "type": "gridSOP",
      "parent": "geo",
      "parameters": { "sizex": 2, "sizey": 2, "rows": 8, "cols": 8 },
      "comment": "Grid of emission points feeding the particle SOP"
    },
    {
      "name": "particle",
      "type": "particleSOP",
      "parent": "geo",
      "render": true,
      "parameters": { "life": 3, "birth": 60 },
      "comment": "Particle simulation; this is the rendered geometry inside geo"
    },
    { "name": "mat", "type": "pointspriteMAT" },
    { "name": "cam", "type": "cameraCOMP", "parameters": { "tz": 6 } },
    { "name": "light", "type": "lightCOMP", "parameters": { "tx": 3, "ty": 4, "tz": 4 } },
    { "name": "render", "type": "renderTOP" }
  ],
  "connections": [{ "from": "emitter", "to": "particle" }],
  "parameters": [
    { "name": "geometry", "node": "render", "param": "geometry", "value": "geo" },
    { "name": "camera", "node": "render", "param": "camera", "value": "cam" },
    { "name": "lights", "node": "render", "param": "lights", "value": "light" },
    { "name": "material", "node": "geo", "param": "material", "value": "mat" }
  ],
  "controls": [
    {
      "name": "BirthRate",
      "type": "float",
      "min": 0,
      "max": 500,
      "default": 60,
      "bind_to": ["particle.birth"]
    },
    {
      "name": "Lifetime",
      "type": "float",
      "min": 0.1,
      "max": 20,
      "default": 3,
      "bind_to": ["particle.life"]
    }
  ],
  "preview_description": "UNVERIFIED — A gentle field of glowing point-sprites emitted from a square 8x8 grid against black, with birth rate and lifetime live-tweakable."
}