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- // Sample transcendental surface. This is a logarithmic surface, mostly
- // flat, but zooming off to minus infinity near the origin.
- // Polyray input file - Alexander Enzmann
-
- // Set up the camera
- viewpoint {
- from <0,4,-4>
- at <0,0,0>
- up <0,1,0>
- angle 30
- resolution 160, 160
- }
-
- // Set up background color & lights
- background MidnightBlue
- light <10,10,-10>
- include "..\colors.inc"
-
- // Define a logarithmic surface
- object {
- object { function y - 0.2 * ln(x^2 + 2.0 * z^2) }
- & object { sphere <0, 0, 0>, 2 }
- bounding_box <-2, -2, -2>, <2, 2, 2>
- shiny_red
- }
-