e7f68f3644
Adds an example effect that spawns particles along an SkPath. Change-Id: I53f3c02fefec814bd9e16f3ac593eac4cf6a297c Reviewed-on: https://skia-review.googlesource.com/c/skia/+/341418 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
35 lines
724 B
JSON
35 lines
724 B
JSON
{
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"MaxCount": 800,
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"Drawable": {
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"Type": "SkCircleDrawable",
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"Radius": 2
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},
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"EffectCode": [
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"void effectSpawn(inout Effect effect) {",
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" effect.lifetime = 1;",
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" effect.rate = 100;",
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"}",
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""
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],
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"Code": [
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"void spawn(inout Particle p) {",
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" float4 pos_and_normal = my_path(rand(p.seed));",
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" p.pos = pos_and_normal.xy;",
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" p.vel = pos_and_normal.zw * -5;",
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"",
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" p.lifetime = 2;",
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"}",
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"",
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"void update(inout Particle p) {",
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"}",
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""
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],
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"Bindings": [
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{
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"Type": "SkPathBinding",
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"Name": "my_path",
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"PathPath": "",
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"PathName": "star"
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}
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]
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} |