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https://github.com/CookieCollective/Live-Coding-Sources.git
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122 lines
2.5 KiB
GLSL
122 lines
2.5 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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float time = fGlobalTime;
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mat2 rot(float a) {
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float ca=cos(a);
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float sa=sin(a);
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return mat2(ca,sa,-sa,ca);
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}
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float box(vec3 p, vec3 s) {
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p=abs(p)-s;
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return max(p.x, max(p.y,p.z));
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}
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float rnd(float t) {
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return fract(sin(t*421.522)*742.512);
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}
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float curve(float t, float d) {
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t/=d;
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return mix(rnd(floor(t)), rnd(floor(t)+1), pow(smoothstep(0,1,fract(t)),10));
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}
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vec3 fractal(vec3 p, float t1) {
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p.xz *= rot(sin(p.y*0.2+time)*0.5);
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p.yz *= rot(sin(p.x*0.3+time*1.3)*1.5);
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for(int i=0; i<7; ++i){
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float t=i + t1*0.1 + curve(t1,0.4)*0.5 + p.x*(0.1+sin(curve(t1,0.2)+t1*0.3)*0.2);
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p.xz *= rot(t);
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p.xy *= rot(t*0.7);
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p.xz = abs(p.xz) - vec2(3,3)*(0.2+i*0.1)*0.7;
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}
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return p;
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}
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float at1=0;
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float at2=0;
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float map(vec3 p) {
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vec3 p2 = fractal(p+vec3(0,0,0), 12.7+time);
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vec3 p3 = fractal(p+vec3(0,2,0), 15.7+time*0.7);
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float d=box(p2, vec3(3,2,0.1));
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float d2=box(p3, vec3(3,2,0.1));
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d=min(d, max(-p.y,length(p.xz)-0.2));
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at1 = d;
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at2 = d2;
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d=min(d,d2);
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d=max(d,0.1);
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return d;
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}
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void cam(inout vec3 p) {
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float t=time*0.2 + curve(time, 1.7)*3.0;
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p.yz *= rot(sin(t*1.3)*0.3+0.6);
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p.xz *= rot(t);
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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.x += (curve(time, 0.7)-0.5)*0.5;
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vec3 s=vec3(0,0,-30);
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float fov = 0.9+curve(time, 0.7);
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vec3 r=normalize(vec3(-uv, fov));
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cam(s);
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cam(r);
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vec3 col=vec3(0);
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vec3 p=s;
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for(int i=0; i<100; ++i) {
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float d=map(p);
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if(d<0.001) break;
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if(d>200.0) break;
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p+=r*d;
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//col += vec3(0.2,0.4,0.9)*0.01/(0.1+abs(d));
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col += vec3(0.2,0.4,0.9)*0.004/(0.1+abs(at1));
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col += vec3(0.9,0.3,0.2)*0.004/(0.1+abs(at2));
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}
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col *= 1.2-length(uv);
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out_color = vec4(col,1);
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} |