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root/Development/ray/src/gen/illum.cal

Comparing ray/src/gen/illum.cal (file contents):
Revision 2.6 by greg, Thu Dec 9 16:57:36 1993 UTC vs.
Revision 2.8 by greg, Sat Feb 22 02:07:23 2003 UTC

#	Line 1 | Line 1
1	<	{ SCCSid "$SunId$ LBL" }
2	<
1	>	{ RCSid: $Id$ }
2		{
3		Coordinate computations for mkillum output.
4
#	Line 15 | Line 14
14		il_azih         - Azimuth (0 to 2*PI) for hemisphere
15		}
16
17	+	norm_rad(r) : if( r, r, r+2*PI );
18	+
19		il_alt = Dz;
20		il_azi = norm_rad(Atan2(Dy, Dx));
21
22		il_alth = sq(-Dx*A7-Dy*A8-Dz*A9);
23		il_azih = norm_rad(Atan2(-Dx*A4-Dy*A5-Dz*A6, -Dx*A1-Dy*A2-Dz*A3));
23	–
24	–	norm_rad(r) = if( r, r, r+2*PI );

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