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- // Persistence Of Vision raytracer version 3.0 sample file.
- // This scenes shows how to do shear with the matrix transformation.
-
-
- #version 3.0
- global_settings { assumed_gamma 2.2 }
-
- #include "colors.inc"
-
- #declare Col1 = -5
- #declare Col2 = 0
- #declare Col3 = 5
-
- #declare Row1 = -4
- #declare Row2 = 4
-
- camera {
- orthographic
- location <25, 25, -50>
- right 15*4/3*x
- up 15*y
- look_at <0, 0, 0>
- }
-
- light_source { <200, 200, -200> color rgb <1,1,1> }
-
- //
- // Use aloved famous raytrace green/yellow checkered wall
- //
-
- plane { z, 2
- pigment {
- checker colour Yellow colour Green
- scale 2
- }
- finish {
- ambient 0.2
- diffuse 0.8
- }
- }
-
- //
- // Declare object to use.
- //
-
- #declare Thing = box { -1, 1 pigment { color Red } }
- //#declare Thing = sphere { 0, 1 pigment { color Red } }
- //#declare Thing = cylinder { -y, y, 1 pigment { color Red } }
- //#declare Thing = torus { 1, 0.2 pigment { color Red } }
- /*
- #declare Thing = blob {
- threshold 0.6
- component 1.0, 1.0, <.75, 0, 0>
- component 1.0, 1.0, <-.375, .64952, 0>
- component 1.0, 1.0, <-.375, -.64952, 0>
- pigment { color Red }
- }
- */
-
- //
- // Place original object.
- //
-
- object { Thing }
-
- //
- // Place several sheared objects.
- //
-
- // Shear in positive x direction
- object { Thing
- matrix < 1, 0, 0,
- 1, 1, 0,
- 0, 0, 1,
- Col1, Row1, 0 >
- }
-
- // Shear in positive y direction
- object { Thing
- matrix < 1, 1, 0,
- 0, 1, 0,
- 0, 0, 1,
- Col2, Row1, 0 >
- }
-
- // Shear in positive z direction
- object { Thing
- matrix < 1, 0, 0,
- 0, 1, 0,
- 1, 0, 1,
- Col3, Row1, 0 >
- }
-
- // Shear in negative x direction
- object { Thing
- matrix < 1, 0, 0,
- -1, 1, 0,
- 0, 0, 1,
- Col1, Row2, 0 >
- }
-
- // Shear in negative y direction
- object { Thing
- matrix < 1, -1, 0,
- 0, 1, 0,
- 0, 0, 1,
- Col2, Row2, 0 >
- }
-
- // Shear in negative z direction
- object { Thing
- matrix < 1, 0, 0,
- 0, 1, 0,
- -1, 0, 1,
- Col3, Row2, 0 >
- }
-
-