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https://github.com/CookieCollective/Live-Coding-Sources.git
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122 lines
2.8 KiB
GLSL
122 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 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 sat(a) clamp(a, 0., 1.)
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float _time;
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mat2 r2d(float a) { float c = cos(a), s = sin(a); return mat2(c, -s,s,c);}
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vec3 getCam(vec3 rd, vec2 uv)
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{
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float fov = 1.;
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vec3 r = normalize(cross(rd, vec3(0.,1.,0.)));
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vec3 u = normalize(cross(rd, r));
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return normalize(rd+fov*(uv.x*r+uv.y*u));
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}
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float _cube(vec3 p, vec3 s)
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{
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vec3 l = abs(p)-s;
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l = abs(l)-s*.5;
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l.z += sin(_time+p.y);
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l.xy *= r2d(_time);
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l = abs(l)-s*.25;
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l.yz *= r2d(_time);
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return max(l.x, max(l.y, l.z));
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}
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vec2 map(vec3 p)
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{
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vec3 pc = p;
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pc.xz *= r2d(_time);
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pc.xy *= r2d(_time*.5);
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vec2 cube = vec2(_cube(pc, vec3(1.)), 0.);
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return cube;
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}
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vec3 trace(vec3 ro, vec3 rd, int steps)
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{
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vec3 p = ro;
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for (int i = 0; i < steps; ++i)
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{
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vec2 res = map(p);
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if (res.x < 0.01)
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return vec3(res.x, distance(p, ro), res.y);
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p+= rd*res.x*.25;
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}
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return vec3(-1.);
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}
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float lenny(vec2 v)
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{
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return abs(v.x)+abs(v.y);
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}
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vec3 rdr(vec2 uv)
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{
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vec3 col;
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vec3 ro = vec3(0.,0.,-15.);
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vec3 ta = vec3(0.,0.,0.);
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vec3 rd = normalize(ta-ro);
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rd = getCam(rd, uv);
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vec3 res = trace(ro, rd, 128);
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if (res.y > 0.)
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{
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vec3 p = ro+rd*res.y;
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vec3 n = normalize(cross(dFdx(p), dFdy(p)));
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col = sat(n*.5+.5)*pow(sat(dot(n, normalize(vec3(1.)))),5.);
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col += vec3(1.)*distance(p, ro)*.05;
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}
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float borders = max(sin((uv.x+uv.y)*50.+_time*sign(uv.x)), -(abs(uv.x)-.4));
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vec3 rgb = mix(vec3(.25,.367,.96), vec3(.87,.15,.96), sat(sin(uv.y*10.)*.5+.5));
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col = mix(col, rgb, 1.-sat(borders*400.));
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col += .5*vec3(1.)*pow(1.-sat(lenny(uv)),5.)*vec3(1.,2.,4.)*(uv.xyx*.5+.5+sat(sin(_time)));
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return col;
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}
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vec3 rdr3(vec2 uv)
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{
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vec3 col = rdr(uv)*.75;
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uv *= r2d(_time);
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vec2 uv2 = uv;
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float stp = 0.1;
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uv2 = floor(uv/stp)*stp;
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col += rdr(uv2*4.).zxy*.25*pow(sat(length(uv)),.5);
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return col;
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}
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vec3 rdr2(vec2 uv)
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{
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vec2 dir = normalize(vec2(1.));
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float str = 0.01*sin(uv.y*5.+_time*10.);
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vec3 col;
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col.r = rdr3(uv+dir*str).r;
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col.g = rdr3(uv).g;
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col.b = rdr3(uv-dir*str).b;
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return col;
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}
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void main(void)
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{
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_time = fGlobalTime;
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vec2 uv = (gl_FragCoord.xy-vec2(.5)*v2Resolution.xy)/v2Resolution.xx;
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vec3 col = rdr2(uv);
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out_color = vec4(col, 1.);
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}
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