ray/lib/jigglepic.cal

{
        Calculation of randomly jiggled 2d picture coordinates.

        A1              - Degree of jiggleing.
        A2              - Ratio of height to width for non-square tiles.
}

jigglepic_u = Px + A1*noise3(Px+8.7,Py-31.2,Pz+44.4);
jigglepic_v = Py + A1*noise3(Py-13.4,Py+11.7,Pz-33.8);

fjigglepic_u = Px + A1*fnoise3(Px+8.7,Py-31.2,Pz+44.4);
fjigglepic_v = Py + A1*fnoise3(Py-13.4,Py+11.7,Pz-33.8);

jiggletile_u = mod(jigglepic_u,max(1,1/jgpic_aspect));
jiggletile_v = mod(jigglepic_v,max(1,jgpic_aspect));

jigglematch_u = tri(jigglepic_u,max(1,1/jgpic_aspect));
jigglematch_v = tri(jigglepic_v,max(1,jgpic_aspect));

fjiggletile_u = mod(fjigglepic_u,max(1,1/jgpic_aspect));
fjiggletile_v = mod(fjigglepic_v,max(1,jgpic_aspect));

fjigglematch_u = tri(fjigglepic_u,max(1,1/jgpic_aspect));
fjigglematch_v = tri(fjigglepic_v,max(1,jgpic_aspect));

jgpic_aspect = if(arg(0)-1.5, arg(2), 1);
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
#	User	Rev	Content
1	greg	1.1	{
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);