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- // Persistence Of Vision Raytracer
- // version 2.0 sample file.
- //
- // PolyWood.pov - Wooden polyhedron hollowed by a sphere
- // on a grassy hilly lawn. Shows how easy it is to
- // create interesting shapes with CSG operations
- // and simple primitive shapes.
- //
- // By Eduard [esp] Schwan -- 71513,2161
- // Last modified: 5/22/93
-
- include "shapes.inc"
- include "colors.inc"
- include "textures.inc"
-
- // Moi
- camera {
- location <-3.3, 0.8, -11.0>
- direction <0.0, 0.0, 1.0>
- up <0.0, 1.0, 0.0>
- right <4/3, 0.0, 0.0>
- look_at <0, 0, 0>
- }
-
- // Some Light just above the horizon for a long shadow
- light_source
- {
- <30, 6, -40>
- color White
- }
-
-
- // The Cloudy Blue Sky
- sphere
- {
- <0, 0, 0>, 10000
- pigment
- {
- Bright_Blue_Sky
- scale <4000, 600, 1000>
- }
- }
-
-
- // The Hilly Grassy Land
- plane
- {
- y, -4.1
- pigment { color red 0.2 green 1.0 blue 0.4 }
- finish
- {
- crand 0.025 // a little randomness to hide the rather severe color banding
- ambient 0.1
- diffuse 0.7
- roughness 1
- }
- normal { bumps 0.5 scale 10 }
- }
-
-
- // The Wooden Polyhedron
- // The idea here is to take a few cubes rotated at 45 degrees
- // along different axes from each other and intersect them,
- // thus cutting some corners. Then we carve out the center
- // with a slightly oversized sphere, which protrudes slightly
- // through the sides of the cubes, cutting portholes in the
- // facets of the polyhedron. Then we get out the wooden paint..
- intersection {
- // polyhedron
- // Add small amount to each box to account for normal numerical inacurracies.
- // This fixes surface acne on coplanar surfaces.
- box { <-4.000, -4.000, -4.000>, <4.000, 4.000, 4.000> }
- box { <-4.001, -4.001, -4.001>, <4.001, 4.001, 4.001> rotate 45*x }
- box { <-4.002, -4.002, -4.002>, <4.002, 4.002, 4.002> rotate 45*y }
- box { <-4.003, -4.003, -4.003>, <4.003, 4.003, 4.003> rotate 45*z }
- // hollow it out
- sphere { <0, 0, 0>, 4.25 inverse }
-
- // semi-dark wood with dark greenish rings
- pigment {
- wood
- turbulence 0.04
- colour_map {
- [0.0 0.4 color red 0.8 green 0.4 blue 0.2
- color red 0.8 green 0.4 blue 0.1]
- [0.4 0.5 color red 0.1 green 0.3 blue 0.1
- color red 0.1 green 0.3 blue 0.2]
- [0.5 0.8 color red 0.1 green 0.3 blue 0.2
- color red 0.8 green 0.4 blue 0.1]
- [0.8 1.0 color red 0.8 green 0.4 blue 0.1
- color red 0.8 green 0.4 blue 0.2]
- }
- scale <0.2, 0.2, 1>
- rotate <45, 0, 5>
- translate <2, 2, -4>
- }
- finish {
- // make it look wood-like
- ambient 0.15
- diffuse 0.6
- // make it a little bit shiny
- specular 0.3 roughness 0.01
- phong 0.3 phong_size 60
- }
- }
-
- // ttfn!
-