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Deltographos::Blog

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Luminous floral

float i,j,d=.1,e; vec3 p;
for(i=0.;i++<64.&&d>1e-4;){
    p=vec3((FC.xy-.5*r)/r.y,1)*10.;
    p.z-=6.;
    p.yz*=rotate2D(t);
    for(j=0.;j++<4.;)
        p=abs(p-.5)*rotate3D(j/i-t,vec3(-4)),
        d=max(dot(p.zy,p.zx),length(p.xy))-5.,
        d-=dot(p,p)/1e4;
    e-=d;
}o+=vec4(exp(-p/i-.5),1)*3./i;
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