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root/Development/ray/src/rt/o_cone.c

Comparing ray/src/rt/o_cone.c (file contents):
Revision 2.5 by schorsch, Tue Mar 30 16:13:01 2004 UTC vs.
Revision 2.6 by greg, Mon Jun 28 10:07:17 2004 UTC

#	Line 127 | Line 127 | o_cone(                        /* intersect ray with cone */
127		for (i = 0; i < 3; i++)
128		r->ron[i] = (co->al*r->ron[i] - c*co->ad[i])
129		/co->sl;
130	+	a = DOT(r->ron, r->ron);
131	+	if (a > 1.+FTINY || a < 1.-FTINY) {
132	+	c = 1./(.5 + .5*a);     /* avoid numerical error */
133	+	r->ron[0] *= c; r->ron[1] *= c; r->ron[2] *= c;
134	+	}
135		r->rod = -DOT(r->rdir, r->ron);
136		r->pert[0] = r->pert[1] = r->pert[2] = 0.0;
137		r->uv[0] = r->uv[1] = 0.0;

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