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LEMNISCA.PI
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1992-09-19
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656b
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29 lines
// 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>
// Lemniscate of Gerono
// This figure looks like two teardrops with their pointed ends connected.
// It is formed by rotating the Lemniscate of Gerono about the x-axis.
object {
polynomial x^4 - x^2 + y^2 + z^2
bounding_box <-1, -1, -1>, <1, 1, 1>
rotate <0, 30, 0>
shiny_red
}