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

Comparing ray/src/rt/source.c (file contents):
Revision 1.40 by greg, Tue Jul 30 18:23:41 1991 UTC vs.
Revision 1.41 by greg, Tue Aug 6 14:07:03 1991 UTC

#	Line 164 | Line 164 | register int  sn;              /* source number */
164		if (source[sn].sflags & SDISTANT) {
165		if (source[sn].sflags & SSPOT) {        /* check location */
166		for (i = 0; i < 3; i++)
167	<	vd[i] = sr->rorg[i] - source[sn].sl.s->aim[i];
167	>	vd[i] = source[sn].sl.s->aim[i] - sr->rorg[i];
168		d = DOT(sr->rdir,vd);
169	+	if (d <= FTINY)
170	+	return(0.0);
171		d = DOT(vd,vd) - d*d;
172		if (PI*d > source[sn].sl.s->siz)
173		return(0.0);

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