// Entry code: iyxhrs
// Name      : Alex Kluchikov
// Frame rate: 25
// http://aklk.com.ua/
// I am surprized -- comma is not needed in macro call.
// Space between number and keyword is not required too.
// And 'color' keyword can be dropped.
// Camera looks at 0 by default.
// It makes the code shorter. Good. :)

#macro L(a,b)
  light_source{a b}
#end 

union
{
  L(<20,0,15>red 1)
  L(<15,13,15>rgb<1,.7>)
  L(<3,20,15>rgb<.7,1>)
  L(<-10,17,15>green 1)
  L(<-19,7,15>rgb<0,1,.7>)
  L(<-19,-7,15>rgb<0,.7,1>)
  L(<-10,-17,15>blue 1)
  L(<3,-20,15>rgb<.7,0,1>)
  L(<15,-13,15>rgb<1,0,.7>)
  rotate z*clock*360
}

camera
{
  location -30*z 
  angle 80
}

sphere
{
  0,31
  texture
  {
    finish{phong 0.4 phong_size 60 reflection.95}
    normal{radial 0.5 frequency 2 sine_wave rotate z*60 rotate y*30 rotate y*clock*360}
  }
  scale z*1.4
  hollow 
}

global_settings
{
  max_trace_level 20
}