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https://github.com/CookieCollective/Live-Coding-Sources.git
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106 lines
2.7 KiB
GLSL
106 lines
2.7 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 texNoise;
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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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#define time fGlobalTime
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#define PI 3.1415
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#define TAU 6.28
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#define repeat(p,r) (mod(p,r)-r/2.)
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float sbox ( vec3 p, float r) {
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vec3 d = abs(p)-r;
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return max(d.x, max(d.y, d.z));
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}
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mat2 rot (float a) {
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float c=cos(a), s=sin(a); return mat2(c,s,-s,c);
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}
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void amod(inout vec2 p, float count) {
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float an = TAU/count;
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float a = atan(p.y,p.x);
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a = mod(a, an)-an/2.;
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p = vec2(cos(a),sin(a))*length(p);
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}
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float map (vec3 pos) {
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float scene = 10.;
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vec3 p = pos;
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p.yz *= rot(time*1.);
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p.yx *= rot(sin(time*.1));
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p.xz *= rot(time * 2. + p.y * .2);
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p = abs(p)-2. + 1.*sin(time*2.);
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amod(p.xz, 10. + 5. * sin(time * 4.));
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p.x -= 1.+.5*sin(time*8.+p.y);
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scene = length(p.xz) - .05 + .02 * sin(time*16.);
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p.y += time * 10.;
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float cy = 16.;
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float iy = floor(p.y/cy);
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vec3 pp = p;
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p.y += time * 4.;
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p.y = repeat(p.y, cy);
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scene = min(scene, length(p)-.2+.1 * sin(time*16.+iy*2.));
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cy = 4.;
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p = pp;
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p.y += time * 4.;
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p.y = repeat(p.y, cy);
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scene = min(scene, sbox(p, .3+.2*sin(time)));
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//scene = min(scene, length(p.yz) - .01);
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p = pp;
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cy = 10.;
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p.y += time * 4.;
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p.y = repeat(p.y, cy);
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scene = min(scene, max(-(length(p.xz)-8.), max(length(p.xz)-10., abs(p.y)-2.)));
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//scene = max(scene, -(length(p)-.5));
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return scene;
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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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//uv *= rot(time);
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vec3 eye = vec3(0,0,-5. + 1. * sin(time*8));
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vec3 ray = normalize(vec3(uv,.5 + .3*cos(time*8.)));
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vec3 pos = eye;
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float shade = 0.;
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const float count = 30.;
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for (float i = count; i > 0.; --i) {
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float dist = map(pos);
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if (dist < .001) {
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shade = i / count;
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break;
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}
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pos += ray * dist;
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}
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vec3 color = vec3(.7)+vec3(.9)*sin(vec3(.2,.1,.3)*time * 40. + shade * 2. + pos.z * .5);
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vec2 p = uv*16.;
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p.y -= sqrt(abs(p.x))*1.5-1.5;
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p.x /= 1.2;
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float invert = step(5., (length(p)-sin(time*10.)*3.));
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color *= shade;
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color = mix(color, 1.-color, invert);
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out_color = vec4(color, 1);
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} |