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root/Development/ray/src/common/image.c

Comparing ray/src/common/image.c (file contents):
Revision 2.5 by greg, Tue Sep 8 10:04:30 1992 UTC vs.
Revision 2.6 by greg, Sat Dec 5 16:23:37 1992 UTC

#	Line 148 | Line 148 | double  x, y;
148		if (d > 1.0)
149		return(-1);
150		VCOPY(orig, v->vp);
151	–	if (d <= FTINY) {
152	–	VCOPY(direc, v->vdir);
153	–	return(0);
154	–	}
151		d = sqrt(d);
152		z = cos(PI*d);
153	<	d = sqrt(1 - z*z)/d;
153	>	d = d <= FTINY ? PI : sqrt(1 - z*z)/d;
154		x *= d;
155		y *= d;
156		direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0];

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