//Whitney's Umbrella, a Type 8 Steiner surface //by Adam Coffman camera { location <3,1.4,2.1> look_at <0,0,0> } #include "colors.inc" plane{<1.3,-15,0.8>,-100 pigment { granite turbulence 0.1 color_map { [0.3 rgb <0.196078,0.6,0.8>] [1.0 rgb 1] } scale 200 } finish{ambient 1} } plane {<0,-1,0>,2.65 pigment{Blue} } sphere {<-10,-210,30>,211 texture { pigment { color <.85, .5, .15> } finish { ambient .5 diffuse .6 crand .1 } normal { ripples .65 turbulence .1 frequency 0.5} scale .8 translate<0,0,15> } } poly { 3 < 0,0,0,1,0,0,0,0,0,0,0,-1,0,0,0,0,0,0,0,0> sturm texture { pigment { gradient z color_map { [0.00 rgb <1,0,0>] [0.33 rgb <0,0,1>] [0.66 rgbt <1,1,1,0.1>] } scale .25 } finish{ambient 0.4} } bounded_by { box{<-1,-1,-15><1,1,1>} } clipped_by { bounded_by } rotate x*-90 rotate y*-25 } light_source{<70,80,0> White} light_source{<0.5,80,0> White shadowless} light_source{<30,10,10> White shadowless}