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

Comparing ray/src/rt/srcsupp.c (file contents):
Revision 1.4 by greg, Fri Jun 21 16:44:01 1991 UTC vs.
Revision 1.5 by greg, Mon Jun 24 16:00:30 1991 UTC

#	Line 168 | Line 168 | FVECT  ocent;
168		OBJREC  *op;
169		{
170		double  maxrad2;
171	<	double  d2;
171	>	double  d;
172		register int  i, j;
173		register FACE  *f;
174
175		f = getface(op);
176	+	if (f->area == 0.)
177	+	return(0.);
178		for (i = 0; i < 3; i++) {
179		ocent[i] = 0.;
180		for (j = 0; j < f->nv; j++)
181		ocent[i] += VERTEX(f,j)[i];
182		ocent[i] /= (double)f->nv;
183		}
184	<	if (f->area == 0.)
185	<	return(0.);
184	>	d = DOT(ocent,f->norm);
185	>	for (i = 0; i < 3; i++)
186	>	ocent[i] += (f->offset - d)*f->norm[i];
187		maxrad2 = 0.;
188		for (j = 0; j < f->nv; j++) {
189	<	d2 = dist2(VERTEX(f,j), ocent);
190	<	if (d2 > maxrad2)
191	<	maxrad2 = d2;
189	>	d = dist2(VERTEX(f,j), ocent);
190	>	if (d > maxrad2)
191	>	maxrad2 = d;
192		}
193		return(maxrad2);
194		}

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