//A Type 7 Steiner surface //by Adam Coffman camera { location <-35,17,35> look_at <0,0, 0> } #include "colors.inc" background{White} poly { 3 < 0,0,0,0,1,0,0,-1,0,0,0,0,0,0,-1,0,0,0,0,0> sturm texture { pigment { gradient x color_map { [0.00 rgbt <1,0,0,0.2>] [0.33 rgb <0,0,1>] [0.66 rgbt <0,1,0,0.3>] }} scale 2.5} bounded_by { cylinder{<40,0,0> <-15,0,0> 15 } } clipped_by { bounded_by } scale 1.13 } light_source{<0.5,20,0> White} light_source{<-40,0,0.5> White} light_source{<40,0,0.5> White} light_source{<0,0.5,40> White}