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root/radiance/ray/lib/jigglepic.cal
Revision: 1.2
Committed: Tue Mar 18 17:30:17 2003 UTC (21 years, 2 months ago) by greg
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +0 -0 lines
State: FILE REMOVED
Log Message:
Decided to move ray/lib directory into non-CVS distribution

File Contents

# Content
1 {
2 Calculation of randomly jiggled 2d picture coordinates.
3
4 A1 - Degree of jiggleing.
5 A2 - Ratio of height to width for non-square tiles.
6 }
7
8 jigglepic_u = Px + A1*noise3(Px+8.7,Py-31.2,Pz+44.4);
9 jigglepic_v = Py + A1*noise3(Py-13.4,Py+11.7,Pz-33.8);
10
11 fjigglepic_u = Px + A1*fnoise3(Px+8.7,Py-31.2,Pz+44.4);
12 fjigglepic_v = Py + A1*fnoise3(Py-13.4,Py+11.7,Pz-33.8);
13
14 jiggletile_u = mod(jigglepic_u,max(1,1/jgpic_aspect));
15 jiggletile_v = mod(jigglepic_v,max(1,jgpic_aspect));
16
17 jigglematch_u = tri(jigglepic_u,max(1,1/jgpic_aspect));
18 jigglematch_v = tri(jigglepic_v,max(1,jgpic_aspect));
19
20 fjiggletile_u = mod(fjigglepic_u,max(1,1/jgpic_aspect));
21 fjiggletile_v = mod(fjigglepic_v,max(1,jgpic_aspect));
22
23 fjigglematch_u = tri(fjigglepic_u,max(1,1/jgpic_aspect));
24 fjigglematch_v = tri(fjigglepic_v,max(1,jgpic_aspect));
25
26 jgpic_aspect = if(arg(0)-1.5, arg(2), 1);