1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// This work is licensed under the Creative Commons Attribution 3.0 Unported License.
// To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/
// or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View,
// California, 94041, USA.
// Persistence Of Vision raytracer version 3.5 sample file.
//
// -w320 -h240
// -w800 -h600 +a0.3
#version 3.6;
global_settings {
assumed_gamma 2.2
}
#include "prism3.inc"
#declare Prism = prism {
cubic_spline
0.0,
1.0,
35,
<-0.228311, 0.228311>, // Outer prism
<-1.000000, -1.000000>,
<1.000000, -1.000000>,
<0.228311, 0.228311>,
<-0.228311, 0.228311>,
<-1.000000, -1.000000>,
<1.000000, -1.000000>
<-0.228311, 0.000000>, // 1st inner prism
<-0.228311, -0.456621>,
<0.228311, -0.456621>,
<0.228311, 0.000000>,
<-0.228311, 0.000000>,
<-0.228311, -0.456621>,
<0.228311, -0.456621>
<-0.479452, -0.273973>, // 2nd inner prism
<-0.479452, -0.730594>,
<-0.022831, -0.730594>,
<-0.022831, -0.273973>,
<-0.479452, -0.273973>,
<-0.479452, -0.730594>,
<-0.022831, -0.730594>
<0.027397, -0.273973>, // 3rd inner prism
<0.027397, -0.730594>,
<0.484018, -0.730594>,
<0.484018, -0.273973>,
<0.027397, -0.273973>,
<0.027397, -0.730594>,
<0.484018, -0.730594>
<-0.228311, -0.502283>, // 4th inner prism
<-0.228311, -0.958904>,
<0.228311, -0.958904>,
<0.228311, -0.502283>,
<-0.228311, -0.502283>,
<-0.228311, -0.958904>,
<0.228311, -0.958904>
}
object { Prism
pigment { color rgb<1, 0.2, 0.2> }
scale <2, 0.2, 2>
translate 0.614*z
}
|
