pov-ray/tuts/spline_demo.pov
2016-03-11 19:46:23 -06:00

54 lines
1.5 KiB
POVRay

#version 3.7;
#include "colors.inc"
global_settings { assumed_gamma 2.2 }
camera {
orthographic
right 1.78*x
up <0, 7, 0>
right <7, 0, 0>
location <3.5, 4, -100>
look_at <3.5, 4, 0>
}
/* set the control points to be used */
#declare Red_Point = <2.00, 1.00>;
#declare Orange_Point = <1.00, 1.50>;
#declare Green_Point = <3.00, 3.50>;
#declare Blue_Point = <2.00, 4.00>;
#declare Green_Point2 = <1.00, 4.50>;
#declare Orange_Point2= <1.00, 6.50>;
#declare Red_Point2 = <2.00, 7.00>;
/* make the control points visible */
cylinder { Red_Point, Red_Point - <0,0,20>, .1
pigment { Red } finish { ambient 1 }
}
cylinder { Orange_Point, Orange_Point - <0,0,20>, .1
pigment { Orange } finish { ambient 1 }
}
cylinder { Green_Point, Green_Point - <0,0,20>, .1
pigment { Green } finish { ambient 1 }
}
cylinder { Blue_Point, Blue_Point- <0,0,20>, .1
pigment { Blue } finish { ambient 1 }
}
cylinder { Green_Point2, Green_Point2 - <0,0,20>, .1
pigment { Green } finish { ambient 1 }
}
cylinder { Orange_Point2, Orange_Point2 - <0,0,20>, .1
pigment { Orange } finish { ambient 1 }
}
cylinder { Red_Point2, Red_Point2 - <0,0,20>, .1
pigment { Red } finish { ambient 1 }
}
/* something to make the curve show up */
lathe {
bezier_spline
8,
Red_Point, Orange_Point, Green_Point, Blue_Point
Blue_Point, Green_Point2, Orange_Point2, Red_Point2
pigment { White }
finish { ambient 1 }
}