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https://github.com/CookieCollective/Live-Coding-Sources.git
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81 lines
2.2 KiB
GLSL
81 lines
2.2 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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vec4 plas( vec2 v, float time )
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{
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float c = 0.5 + sin( v.x * 10.0 ) + cos( sin( time + v.y ) * 20.0 );
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return vec4( sin(c * 0.2 + cos(time)), c * 0.15, cos( c * 0.1 + time / .4 ) * .25, 1.0 );
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}
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#define t fGlobalTime
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float C,S;
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#define rot(a) mat2(C=cos(a),S=sin(a),-S,C)
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struct M{float d;vec3 c;};
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M mmin(M a,M b,float k){
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float h=clamp((b.d-a.d)/k*.5+.5,0.,1.);
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M m;
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m.d=mix(b.d,a.d,h)-k*h*(1.-h);
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m.c=mix(b.c,a.c,h);
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return m;
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}
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M map(vec3 p){
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p.xz*=rot(t*.3);
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p.y+=.2*sin(t*3.);
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float a=atan(p.z,p.x);
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M m;
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float d=length(p.xz);
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d=dot(normalize(vec2(.9,-.2)),vec2(d,p.y+2.));
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d=max(d,p.y-.5);
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m.d=d;
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vec2 st=vec2(a*10.,-a*1.);
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st*=(1.-st);
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m.c=vec3(.9,.8,0.);
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d=length(p.xz)-.8*(smoothstep(.0,.5,p.y)-smoothstep(1.5,2.5,p.y))+.1-.1*sin(a*8.+p.y*15.);
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M m2;
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m2.d=d;
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m2.c=mix(vec3(.9),vec3(.9,.1,.1),step(.5,fract(a/6.2831*8.+p.y*15./6.2831)));
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m=mmin(m,m2,.1);
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return m;
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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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vec3 ro=vec3(uv,-5.),rd=normalize(vec3(uv,1.)),mp=ro;
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M m;
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float f;for(f=0.;f<30.;++f){
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m=map(mp);
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if(abs(m.d)<.001)break;
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mp+=rd*m.d;
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}
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float a=atan(uv.y+.8,uv.x)/6.2831*40.+t;
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vec3 bg=mix(vec3(.0,.4,.8), vec3(.1,.5,.9),step(.5,fract(a)));
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float mbg=min(1.,length(mp-ro)*.01);
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vec3 c=mix(m.c*(1.-f/30.),bg,mbg);
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for(f=0.;f<40.;++f){
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vec4 h=fract(sin(f+vec4(0.,3.,5.,8.))*1e4);
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h.y=fract(h.y-t*.1);
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vec3 p=(h.xyz-.5)*10.;
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p.xz*=rot(t*.5);
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float d=length(cross(p-ro,rd));
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c+=vec3(.01)/d/d;
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}
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out_color = vec4(c,1.);
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} |