resources/particles/uniforms.json

{
   "MaxCount": 800,
   "Drawable": {
      "Type": "SkCircleDrawable",
      "Radius": 2
   },
   "Code": [
      "uniform float rate;",
      "uniform float spin;",
      "uniform float3 color;",
      "",
      "void effectSpawn(inout Effect effect) {",
      "  effect.lifetime = 4;",
      "}",
      "",
      "void effectUpdate(inout Effect effect) {",
      "  effect.rate = 100 * rate;",
      "  effect.spin = spin;",
      "}",
      "",
      "void spawn(inout Particle p) {",
      "  p.lifetime = 2 + rand(p.seed);",
      "  p.vel = p.dir * mix(50, 60, rand(p.seed));",
      "}",
      "",
      "void update(inout Particle p) {",
      "  p.color.rgb = color;",
      "}",
      ""
   ],
   "Bindings": []
}