Lucas de Vries
26 lines
690 B
Plaintext
26 lines
690 B
Plaintext
varying vec2 uv;
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uniform sampler2D texture;
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uniform float age, time;
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varying vec3 n, v, norm;
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vec3 rangeUnpack(float t) {
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vec3 r;
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r.x = abs(mod(t + 0.33333,1.0) - 0.5) / 0.5;
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r.y = abs(mod(t + 0.66666,1.0) - 0.5) / 0.5;
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r.z = abs(mod(t + 1.0,1.0) - 0.5) / 0.5;
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return r;
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}
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void main() {
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vec3 sample = texture2D(texture,uv).rgb;
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sample = sample * rangeUnpack(mod(age * 15.0, 1.0));
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float alpha = max(sample.x + sample.y + sample.z - 0.7, 0.0);
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alpha *= max(dot(normalize(norm), normalize(-v)), 0.0) * (1.0 - abs(n.y)) * (1.0 - age);
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alpha *= 20.0;
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if(alpha <= 0.0)
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discard;
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gl_FragColor.rgb = alpha * vec3(1.0, 0.7, 0.2);
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gl_FragColor.a = 1.0;
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}
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