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- // Persistence Of Vision raytracer version 3.1 sample file.
- // Demo of extended light sources by Steve Anger
-
- global_settings { assumed_gamma 1.0 }
-
- #include "colors.inc"
- #include "textures.inc"
- #include "shapes.inc"
-
-
- // A rather boring texture but it renders quick
- #declare Text_Texture = texture {
- pigment { Red }
- finish {
- phong 2.0
- phong_size 80
- ambient 0.1
- diffuse 1.5
- }
- }
-
- #declare Letter_S = union {
- difference {
- torus { 4.0, 1.5 rotate 90*x }
- box { <0, -5.5, -1.5>, <5.5, 0, 1.5> }
-
- translate 4*y
- }
-
- difference {
- torus { 4.0, 1.5 rotate 90*x }
- box { <-5.5, 0, -1.5>, <0, 5.5, 1.5> }
-
- translate -4*y
- }
-
- sphere { <4, 4, 0>, 1.5 }
- sphere { <-4, -4, 0>, 1.5 }
-
- }
-
- #declare Letter_O = union {
- torus { 4.0, 1.5
- rotate 90*x
-
- clipped_by { box { <-5.5, 0, -1.5> <5.5, 5.5, 1.5> } }
- translate 4*y
- }
-
- torus { 4.0, 1.5
- rotate 90*x
-
- clipped_by { box { <-5.5, -5.5, -1.5> <5.5, 0, 1.5> } }
- translate -4*y
- }
-
- cylinder { <-4, -4, 0>, <-4, +4, 0>, 1.5 }
- cylinder { <+4, -4, 0>, <+4, +4, 0>, 1.5 }
-
- }
-
- #declare Letter_F = union {
- cylinder { <-4, -8, 0>, <-4, 8, 0>, 1.5 }
- cylinder { <-4, 0, 0>, <1.5, 0, 0>, 1.5 }
- cylinder { <-4, 8, 0>, <4, 8, 0>, 1.5 }
-
- sphere { <-4, -8, 0>, 1.5 }
- sphere { <-4, 8, 0>, 1.5 }
- sphere { <4, 8, 0>, 1.5 }
- sphere { <1.5, 0, 0>, 1.5 }
-
- }
-
- #declare Letter_T = union {
- cylinder { <0, -8, 0>, <0, 8, 0>, 1.5 }
- cylinder { <-4, 8, 0>, <4, 8, 0>, 1.5 }
-
- sphere { <-4, 8, 0>, 1.5 }
- sphere { <+4, 8, 0>, 1.5 }
- sphere { <0, -8, 0>, 1.5 }
-
- }
-
-
- // Put the letters together
- union {
- object { Letter_S translate -20*x }
- object { Letter_O translate -7*x }
- object { Letter_F translate 7*x }
- object { Letter_T translate 20*x }
-
- texture { Text_Texture }
-
- translate 9.5*y
- }
-
- // Floor
- plane { y, 0
- pigment { Tan }
- finish {
- ambient 0.0
- diffuse 0.8
- }
- }
-
- // Something to light the front of the text
- light_source { <0, 30, -90> color Gray30 }
-
- // An extended area spotlight to backlight the letters
- light_source {
- <0, 50, 100> color White
-
- // The spotlight parameters
- spotlight
- point_at <0, 0, -5>
- radius 6
- falloff 22
-
- // The extended area light paramaters
- area_light <6, 0, 0>, <0, 6, 0>, 9, 9
- adaptive 0
- jitter
- }
-
- camera {
- direction <0, 0, 1.5>
- location <0, 30, -90>
- look_at <0, 0, -2>
- }
-