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- # Generic Polyray input File
- # Polyray input file: Alexander Enzmann
-
- # Set up the camera
- viewpoint {
- from <0, 5, -5>
- at <0, 0, 0>
- up <0, 1, 0>
- angle 30
- resolution 160, 160
- }
-
- # Get various surface finishes
- include "colors.inc"
-
- # Set up background color & lights
- background black
- light <10, 10, -20>
-
- # Variant of a devil's curve in 3-space. This figure has a top and
- # bottom part that are very similar to a hyperboloid of one sheet,
- # however the central region is pinched in the middle leaving two
- # teardrop shaped holes.
- object {
- polynomial x^4 + 2*x^2*z^2 - 0.36*x^2 - y^4 + 0.25*y^2 + z^4
- root_solver Ferrari
- bounds object { sphere <0, 0, 0>, 2 }
- clips object { box <-2, -2, -0.5>, <2, 2, 0.5> }
- rotate <40, 30, 0>
- shiny_red
- }
-