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

Comparing ray/src/rt/glass.c (file contents):
Revision 2.3 by greg, Fri Oct 2 16:17:31 1992 UTC vs.
Revision 2.4 by greg, Wed Oct 14 12:27:47 1992 UTC

#	Line 96 | Line 96 | register RAY  *r;
96		for (i = 0; i < 3; i++)         /* perturb direction */
97		p.rdir[i] = r->rdir[i] +
98		2.*(1.-rindex)*r->pert[i];
99	<	normalize(p.rdir);
99	>	if (normalize(p.rdir) == 0.0) {
100	>	objerror(m, WARNING, "bad perturbation");
101	>	VCOPY(p.rdir, r->rdir);
102	>	}
103		} else {
104		VCOPY(p.rdir, r->rdir);
105		transtest = 2;

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