| { |
| "MaxCount": 4096, |
| "Duration": 1, |
| "Rate": 1000, |
| "Drawable": { |
| "Type": "SkCircleDrawable", |
| "Radius": 1 |
| }, |
| "Code": [ |
| "// float rand; Every read returns a random float [0 .. 1)", |
| "", |
| "void spawn(inout Particle p) {", |
| " p.lifetime = mix(1, 3, rand);", |
| " float a = radians(mix(250, 290, rand));", |
| " float s = mix(10, 30, rand);", |
| " p.vel.x = cos(a) * s;", |
| " p.vel.y = sin(a) * s;", |
| " p.pos = text(rand).xy;", |
| "}", |
| "", |
| "void update(inout Particle p) {", |
| " float4 startColor = float4(1, 0.196, 0.078, 1);", |
| " float4 endColor = float4(1, 0.784, 0.078, 1);", |
| " p.color = mix(startColor, endColor, p.age);", |
| "}", |
| "" |
| ], |
| "Bindings": [ |
| { |
| "Type": "SkTextBinding", |
| "Name": "text", |
| "Text": "SKIA", |
| "FontSize": 96 |
| } |
| ] |
| } |
