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- // Persistence Of Vision raytracer version 3.0 sample file.
- //
- // Demo using the spiral2 texture ... by Dieter Bayer, May 1994
- //
- // 9 cylinders with different spiral2 textures.
- //
- // The scaling factor of the texture, i.e. the number of turns
- // one "arm" of the spiral makes, decreases from left to right.
- //
- // The number of arms of the spiral,
- // increases from top to bottom.
- //
-
- #version 3.0
- global_settings { assumed_gamma 2.2 }
-
- #include "colors.inc"
- #include "shapes.inc"
-
- /* factors used for positioning the discs */
-
- #declare X = 3
- #declare Z = 3
-
- /* arms used */
-
- #declare O1 = 3
- #declare O2 = 6
- #declare O3 = 9
-
- /* scaling used */
-
- #declare S1 = 100
- #declare S2 = 1
- #declare S3 = 0.2
-
- /* Spiral 1 */
-
- #declare Spiral1 =
- texture {
- pigment {
- spiral2 O1
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S1, S1, S1>
- }
-
- /* Spiral 2 */
-
- #declare Spiral2 =
- texture {
- pigment {
- spiral2 O1
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S2, S2, S2>
- }
-
- /* Spiral 3 */
-
- #declare Spiral3 =
- texture {
- pigment {
- spiral2 O1
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S3, S3, S3>
- }
-
- /* Spiral 4 */
-
- #declare Spiral4 =
- texture {
- pigment {
- spiral2 O2
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S1, S1, S1>
- }
-
- /* Spiral 5 */
-
- #declare Spiral5 =
- texture {
- pigment {
- spiral2 O2
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S2, S2, S2>
- }
-
- /* Spiral 6 */
-
- #declare Spiral6 =
- texture {
- pigment {
- spiral2 O2
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S3, S3, S3>
- }
-
- /* Spiral 7 */
-
- #declare Spiral7 =
- texture {
- pigment {
- spiral2 O3
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S1, S1, S1>
- }
-
- /* Spiral 8 */
-
- #declare Spiral8 =
- texture {
- pigment {
- spiral2 O3
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S2, S2, S2>
- }
-
- /* Spiral 9 */
-
- #declare Spiral9 =
- texture {
- pigment {
- spiral2 O3
- color_map { [0.0, 1.0 color Red color Green] }
- }
- finish { ambient 0.3 diffuse 0.5 phong 0.5 phong_size 20 }
- scale <S3, S3, S3>
- }
-
- camera {
- location <10, 10, -20>
- right <4/3, 0, 0>
- up <0, 1, 0>
- sky <0, 1, 0>
- direction <0, 0, 2.8>
- look_at <0, 0, 0>
- }
-
- background { color SkyBlue }
-
- light_source { <15, 15, -20> colour Gray30 }
-
- light_source { <-10, 50, -10> colour Gray30 }
-
- light_source { <0, 50, 0> colour Gray30 }
-
- plane { y, 0
- pigment {
- checker colour Yellow colour Green
- scale 5
- }
- finish {
- ambient 0.2
- diffuse 0.8
- }
- }
-
- cylinder { -y, y, 1
- texture { Spiral1 rotate 90*x }
- translate <-1*X, 1, +1*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral2 rotate 90*x }
- translate <0*X, 1, +1*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral3 rotate 90*x }
- translate <1*X, 1, +1*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral4 rotate 90*x }
- translate <-1*X, 1, 0*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral5 rotate 90*x }
- translate <0*X, 1, 0*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral6 rotate 90*x }
- translate <1*X, 1, 0*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral7 rotate 90*x }
- translate <-1*X, 1, -1*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral8 rotate 90*x }
- translate <0*X, 1, -1*Z>
- }
-
- cylinder { -y, y, 1
- texture { Spiral9 rotate 90*x }
- translate <1*X, 1, -1*Z>
- }
-
-
-