e59acb79b8
Change-Id: If57fb79db8f8c5fd185fefaa202167c8082dd846 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/229921 Reviewed-by: Mike Klein <mtklein@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
43 lines
1.0 KiB
JSON
43 lines
1.0 KiB
JSON
{
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"MaxCount": 32,
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"Duration": 1,
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"Rate": 0.5,
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"Drawable": {
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"Type": "SkImageDrawable",
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"Path": "resources/images/baby_tux.png",
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"Columns": 1,
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"Rows": 1
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},
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"Code": [
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"// float rand; Every read returns a random float [0 .. 1)",
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"layout(ctype=float) in uniform float dt;",
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"layout(ctype=float) in uniform float effectAge;",
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"",
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"struct Particle {",
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" float age;",
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" float lifetime;",
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" float2 pos;",
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" float2 dir;",
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" float scale;",
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" float2 vel;",
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" float spin;",
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" float4 color;",
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" float frame;",
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"};",
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"",
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"void spawn(inout Particle p) {",
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" p.lifetime = 20;",
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" float a = radians(10 + 60 * rand);",
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" float s = 140 + rand * 60;",
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" p.vel.x = cos(a) * s;",
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" p.vel.y = -sin(a) * s;",
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"}",
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"",
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"void update(inout Particle p) {",
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" p.vel.y += 50 * dt;",
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" p.dir = normalize(p.vel);",
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"}",
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""
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],
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"Bindings": []
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} |