Remember the "What is this?" post? Well, this is the result of parsing the
formula through isosurface. It doesn't look like a septic to me. What's

program to get it? Please, tell me POV has the power!

// septic

// anthony bennett
// 8-9(1)2000

background {rgb <0,1,2>/3}

camera
{
 location <1,1,-1>*10
 look_at 0
}

light_source {<1,2,-3>*10 1}

isosurface
{
 function
  z^2*(z-1)^2*(z+1)^2+.2*(x^7-21*x^5*y*2+35*x^3*y^4
 -7*x*y^6+7*x^6+21*x^4*y^2+21*x^2*y^4+7*y^6-56*x^4
 -112*x^2*y^2-56*y^4+112*x^2+112*y^2-64)
 bounded_by {sphere {0,7}}
 pigment {rgb <2,3,1>/3}
 finish {ambient 4/9}
 rotate x*90
}

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