float i,d,s=.866,e=s;mat2 H=mat2(s,.5,-s,.5),R=rotate2D(.52);
for(vec3 p;i <99.&&e>.1;p=vec3(FC.xy/r.y-.54,.1)*d,p.z-=.8,p.y-=t,p.xy=(fract(p.xy*H)-.5)*inverse(H),p=abs(p),p.y-=.33,p.xy=abs(abs(p.xy)*R*R)*R,d =e=min(length(p)-.2,length(p.zy)));o =7./i;
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