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root/Development/ray/src/gen/mkillum2.c

Comparing ray/src/gen/mkillum2.c (file contents):
Revision 2.4 by greg, Thu Aug 13 10:03:19 1992 UTC vs.
Revision 2.5 by greg, Thu Aug 13 11:23:46 1992 UTC

#	Line 71 | Line 71 | char  *nm;
71		u[0] = VERTEX(fa,i)[0] - VERTEX(fa,j)[0];
72		u[1] = VERTEX(fa,i)[1] - VERTEX(fa,j)[1];
73		u[2] = VERTEX(fa,i)[2] - VERTEX(fa,j)[2];
74	<	if (DOT(u,u) >= fa->area-FTINY)
74	>	if ((r1 = DOT(u,u)) >= fa->area-FTINY)
75		break;
76		}
77		if (i < fa->nv) {       /* got one! -- let's align our axes */
78	<	normalize(u);
78	>	r2 = 1.0/sqrt(r1);
79	>	u[0] *= r2; u[1] *= r2; u[2] *= r2;
80		fcross(v, fa->norm, u);
81		} else                  /* oh well, we'll just have to wing it */
82		mkaxes(u, v, fa->norm);

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