2016-09-29 02:24:14 +00:00
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R"raw_string(
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#version 120
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varying vec2 vertex;
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2016-09-29 07:05:35 +00:00
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varying vec2 velocity;
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2016-09-29 02:24:14 +00:00
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uniform float maxAge;
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uniform float time;
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void main()
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{
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//gl_FragColor = vec4(0.5+0.5*vertex.x, 0.5+0.5*vertex.y, 0.0, 1.0);
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if (length(vertex) > 1.0) {
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discard;
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}
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float decay = time / maxAge;
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2016-09-29 07:05:35 +00:00
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decay = 5.0*decay*decay;
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// (length(10.0*velocity));
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2016-09-29 02:24:14 +00:00
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gl_FragColor = vec4(1.0/max(1.0, decay), 1.0/max(1.0, 6.0*decay), 0.0, 1.0);
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}
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)raw_string"
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