Summary

Source Code

Many thanks to POV-Ray. This is the source code:

#include "colors.inc"
#include "stdinc.inc"

background { Blue }

camera {
   location <0,-12,6>
   up z 
   right x
   look_at <0,0,0>
}   
                      
light_source {<120,0,120> rgb <1.0, 1.0, 1.0>}
light_source {<-120,-120,0> rgb <0.8, 1.0, 1.0>*0.5}

#declare my_texture = texture {
   pigment { rgb <0.8,0.8,1> }
   finish {    
      phong 0.5
      phong_size 10
   }
}
      
#declare w = 1;      
#declare  T = function { 64*(x-w)*( pow(x,4) -4*pow(x,3)*w -10*x*x*y*y -4*x*x*w*w +16*x*pow(w,3)
   -20*x*y*y*w+ 5*pow(y,4) +16*pow(w,4) -20*y*y*w*w) -5*sqrt(5-sqrt(5))*(2*z-sqrt(5-sqrt(5))*w) *
    pow(4*(x*x+y*y-z*z)+(1+3*sqrt(5))*w*w,2) }

isosurface {
  function { T(x,y,z) }
  threshold 0
  accuracy 0.0001
  max_gradient 2000000
  open
  contained_by {sphere {<0,0,0>,6}}
  texture{ my_texture }
}

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

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• to share – to copy, distribute and transmit the work
• to remix – to adapt the work

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• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

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