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- # Generic Polyray input File
- # Polyray input file: Alexander Enzmann
-
- # Set up the camera
- viewpoint {
- from <0, 0, -16>
- at <0,0,0>
- up <0,1,0>
- angle 45
- resolution 256, 256
- }
-
- background skyblue
- light <-10, 3, -20>
- light < 10, 3, -20>
-
- define test_map
- color_map(
- [0, 0.3, red, orange]
- [0.1, 0.3, orange, blue]
- [0.3, 0.5, blue, skyblue]
- [0.5, 0.7, skyblue, orange]
- [0.7, 0.9, orange, magenta]
- [0.9, 1.0, magenta, red],
- <1, 1, 1>)
-
- # Simple color map texture
- define noise_texture0
- texture {
- special surface {
- color test_map[noise(P)]
- ambient 0.2
- diffuse 0.8
- specular white, 0.5
- microfacet Reitz 10
- }
- scale <0.6, 0.6, 0.6>
- }
-
- define marble_turb 1
- define marble_fn (sawtooth(P[0] + marble_turb * noise(P,4)) + 1) / 2
-
- define white_marble_map
- color_map(
- [0.0, 0.8, <0.9, 0.9, 0.9>, <0.5, 0.5, 0.5>]
- [0.8, 1.0, <0.5, 0.5, 0.5>, <0.2, 0.2, 0.2>])
-
- define red_marble_map
- color_map(
- [0.0, 0.8, <0.8, 0.8, 0.6>, <0.8, 0.4, 0.4>]
- [0.8, 1.0, <0.8, 0.4, 0.4>, <0.8, 0.2, 0.2>])
-
- # Simple marble textures
- define white_marble_texture
- texture {
- special surface {
- color white_marble_map[marble_fn]
- ambient 0.2
- diffuse 0.8
- specular white, 0.5
- microfacet Reitz 10
- }
- }
-
- define red_marble_texture
- texture {
- special surface {
- color red_marble_map[marble_fn]
- ambient 0.2
- diffuse 0.8
- specular white, 0.5
- microfacet Reitz 10
- }
- }
-
- define wood_scale 2
- define light_wood <0.3, 0.12, 0.03>
- define dark_wood <0.05, 0.01, 0.005>
- define xydist wood_scale * sqrt(x * x + y * y)
-
- define wood_turb 1
- define wood_fn (sawtooth(xydist + wood_turb * noise(P,4)) + 1) / 2
-
- define wood_map
- color_map(
- [0.0, 0.9, light_wood, light_wood]
- [0.9, 1.0, light_wood, dark_wood])
-
- define wood_texture
- texture {
- special surface {
- color wood_map[wood_fn]
- ambient 0.2
- diffuse 0.8
- specular white, (0.4 + |wood_map[wood_fn]|)
- microfacet Reitz 10
- }
- scale <0.3, 0.3, 0.3>
- }
-
- define two_sphere object { sphere <0, 0, 0>, 2 }
-
- two_sphere { translate <-2.5, -2.5, 0> white_marble_texture }
- two_sphere { translate <-2.5, 2.5, 0> wood_texture }
- two_sphere { translate < 2.5, -2.5, 0> red_marble_texture }
- two_sphere { translate < 2.5, 2.5, 0> noise_texture0 }
-