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https://github.com/CookieCollective/Live-Coding-Sources.git
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126 lines
2.8 KiB
GLSL
126 lines
2.8 KiB
GLSL
#version 410 core
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uniform float fGlobalTime; // in seconds
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uniform vec2 v2Resolution; // viewport resolution (in pixels)
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uniform sampler1D texFFT; // towards 0.0 is bass / lower freq, towards 1.0 is higher / treble freq
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uniform sampler1D texFFTSmoothed; // this one has longer falloff and less harsh transients
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uniform sampler1D texFFTIntegrated; // this is continually increasing
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uniform sampler2D texChecker;
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uniform sampler2D texKC;
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uniform sampler2D texNoise;
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uniform sampler2D texPegasus;
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uniform sampler2D texTex1;
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uniform sampler2D texTex2;
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uniform sampler2D texTex3;
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uniform sampler2D texTex4;
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layout(location = 0) out vec4 out_color; // out_color must be written in order to see anything
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vec2 rotate(vec2 p, float a)
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{
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float c = cos(a);
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float s = sin(a);
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return mat2(c, s, -s, c) * p;
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}
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float vmax(vec3 p)
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{
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return max(max(p.x, p.y), p.z);
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}
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float cube(vec3 p, vec3 s)
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{
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vec3 d = abs(p) - s;
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return length(max(d, 0.0)) + vmax(min(d, 0.0));
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}
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float tube(vec2 p, float s)
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{
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return length(p) - s;
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}
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float room(vec3 p)
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{
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p.xy = rotate(p.xy, fGlobalTime);
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p.xz = rotate(p.xz, fGlobalTime * 0.7);
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return -cube(p, vec3(10.0));
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}
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float tubes(vec3 p)
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{
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p.xy = rotate(p.xy, p.z * sin(fract(fGlobalTime)) * 0.1);
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p.xz = rotate(p.xz, p.z * sin(fract(fGlobalTime * 1.3)) * 0.5);
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p.xy = rotate(p.xy, fGlobalTime * 0.04 + 2.5);
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p.xz = rotate(p.xz, fGlobalTime * 0.2 + 1.3);
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float d = tube(p.xz, 0.1);
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d = min(d, tube(p.xy, 0.1));
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d = min(d, tube(p.yz, 0.1));
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return d;
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}
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float map(vec3 p)
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{
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float d = room(p);
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d = min(d, tubes(p));
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p.xy = rotate(p.xy, p.z);
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p.xy = rotate(p.xy, fGlobalTime * 2.0);
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p.xz = rotate(p.xz, fGlobalTime * 2.8);
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d = min(d, cube(p, vec3(1.0)));
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return d;
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}
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vec3 normal(vec3 p)
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{
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vec2 e = vec2(0.001, 0.0);
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return normalize(vec3(
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map(p + e.xyy) - map(p - e.xyy),
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map(p + e.yxy) - map(p - e.yxy),
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map(p + e.yyx) - map(p - e.yyx)
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));
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}
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float light(float d)
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{
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return 3.0 / (d * d + 1.0);
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}
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vec3 tonemap(vec3 c)
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{
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c = c / (c + 1.0);
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return pow(c, vec3(1.0 / 2.2));
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}
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void main(void)
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{
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vec2 uv = vec2(gl_FragCoord.x / v2Resolution.x, gl_FragCoord.y / v2Resolution.y);
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uv -= 0.5;
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uv /= vec2(v2Resolution.y / v2Resolution.x, 1);
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float beat = exp(-fract(fGlobalTime) * 20.0);
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uv.x += sin(uv.y * 500.0) * beat;
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vec3 pos = vec3(0.0, 0.0, -4.0);
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vec3 dir = normalize(vec3(uv, 1.0 - length(uv) * 0.8));
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for (int i = 0; i < 64; i++)
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{
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float d = map(pos);
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if (d < 0.001) break;
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pos += dir * d;
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}
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vec3 n = normal(pos);
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float diffuse = dot(n, normalize(vec3(1.0))) * 0.5 + 0.5;
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vec3 tubeLight = light(tubes(pos)) * vec3(30.0 * exp(-fract(fGlobalTime) * 10.0), 0.0, 40.0);
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vec3 radiance = vec3(diffuse) * vec3(0.2, 0.0, 20.0) * 4.0 + tubeLight;
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out_color = vec4(tonemap(radiance) * (1.0 / length(uv * 10.0)), 1.0);
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} |