JS1k: The JavaScript code golfing competition

with(g){for(e in g){g[e[0]+e.replace(/f*[a-z][a-z]b*|(^..|_)(.)[^_]+/g,'$2')]=g[e]};e=cP();i=FAS;f=(c)=>{b=cSr(i++);sSe(b,c);ceSr(b);aSr(e,b)};f('precision mediump float;uniform float G,D;uniform #2 R;mat2 m(float a){float c=cos(a),s=sin(a);return mat2(c,-s,s,c);}float l(#3 p){p.xz*=m(G*.2);p.xy*=m(G*.3);#3 q=p*2.+G;return length(p+#3(sin(G)))*log(length(p))+sin(q.x+sin(q.z+q.y))*.3;}void f(out #4 a,#2 b){#2 p=b.xy/R.y-#2(.8,.5);#3 c,y,x=#3(1.);float z,f,n=2.5,k=-1.;for(int i=0;i<=5;i++){c=#3(0,0,3)+#3(p,k)*n;z=l(c);f=clamp((z-l(c+.1)),k,1.);y=#3(.1,.1,.6)+#3(5.,2,3.)*f;x=x*y;n+=min(sin(z),.5);};a=#4(x,1.);}void main(){f(gl_FragColor,gl_FragCoord.xy);}'.replace(/#/g,'vec'));f('attribute vec4 p;void main(){gl_Position=p;}');eVxAA(bB(n=EEABB-3,cB()));lP(e);vAP(e,2,5120,bDa(n,Int8Array.of(1,n,1,1),n+82),1,0);ueP(e);n=Date.now;D=n()/1E3;j=i=0;(f=()=>{l=n()/1E3;um1f(gtUmLn(e,'G'),j+=l-D);um1f(gtUmLn(e,'D'),D=l);um2f(gtUmLn(e,'R'),a.width,a.height);dAs(6,um1f(gtUmLn(e,'J'),i++),3);requestAnimationFrame(f)})()}

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