ray/lib/woodtex.cal

{
        Wood grain texture:

        A1 = roughness (0 < roughness < 1).
}

xgrain_dx = 0;                          { dx along x axis }
xgrain_dy = A1 * Rdot * sin(wztexang);  { dy along x axis }
xgrain_dz = A1 * Rdot * cos(wztexang);  { dz along x axis }
wxtexang = PI * fnoise3(Px/10, Py, Pz);

ygrain_dx = A1 * Rdot * cos(wztexang);  { dx along y axis }
ygrain_dy = 0;                          { dy along y axis }
ygrain_dz = A1 * Rdot * sin(wztexang);  { dz along y axis }
wytexang = PI * fnoise3(Px, Py/10, Pz);

zgrain_dx = A1 * Rdot * cos(wztexang);  { dx along z axis }
zgrain_dy = A1 * Rdot * sin(wztexang);  { dy along z axis }
zgrain_dz = 0;                          { dz along z axis }
wztexang = PI * fnoise3(Px, Py, Pz/10);
Revision:	1.2
Committed:	Tue Mar 18 17:30:18 2003 UTC (22 years, 7 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
#	Content
1	{
2	Wood grain texture:
3
4	A1 = roughness (0 < roughness < 1).
5	}
6
7	xgrain_dx = 0; { dx along x axis }
8	xgrain_dy = A1 * Rdot * sin(wztexang); { dy along x axis }
9	xgrain_dz = A1 * Rdot * cos(wztexang); { dz along x axis }
10	wxtexang = PI * fnoise3(Px/10, Py, Pz);
11
12	ygrain_dx = A1 * Rdot * cos(wztexang); { dx along y axis }
13	ygrain_dy = 0; { dy along y axis }
14	ygrain_dz = A1 * Rdot * sin(wztexang); { dz along y axis }
15	wytexang = PI * fnoise3(Px, Py/10, Pz);
16
17	zgrain_dx = A1 * Rdot * cos(wztexang); { dx along z axis }
18	zgrain_dy = A1 * Rdot * sin(wztexang); { dy along z axis }
19	zgrain_dz = 0; { dz along z axis }
20	wztexang = PI * fnoise3(Px, Py, Pz/10);