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root/Development/ray/src/px/pinterp.c

Comparing ray/src/px/pinterp.c (file contents):
Revision 2.44 by greg, Sun Mar 24 19:00:33 2013 UTC vs.
Revision 2.46 by greg, Wed Jan 24 04:39:52 2018 UTC

#	Line 753 | Line 753 | movepixel(                             /* reposition image point */
753		if (viewray(pt, tdir, &theirview, pos[0], pos[1]) < -FTINY)
754		return(0);
755		if ((!normdist) & (theirview.type == VT_PER))   /* adjust */
756	<	pos[2] *= sqrt(1. + pos[0]*pos[0]*theirview.hn2
757	<	+ pos[1]*pos[1]*theirview.vn2);
756	>	pos[2] /= DOT(theirview.vdir, tdir);
757		pt[0] += tdir[0]*pos[2];
758		pt[1] += tdir[1]*pos[2];
759		pt[2] += tdir[2]*pos[2];
760	<	viewloc(pos, &ourview, pt);
762	<	if (pos[2] <= 0)
760	>	if (viewloc(pos, &ourview, pt) <= 0)
761		return(0);
762		}
763		if ((pos[0] < 0) | (pos[0] >= 1-FTINY) | (pos[1] < 0) | (pos[1] >= 1-FTINY))

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