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

Comparing ray/src/rt/srcdraw.c (file contents):
Revision 2.3 by greg, Sat Jun 8 21:16:04 1996 UTC vs.
Revision 2.4 by gregl, Mon Oct 20 17:18:42 1997 UTC

#	Line 366 | Line 366 | int    x0, xsiz, y0, ysiz;             /* origin and size of subimag
366		int     nsv, npv;
367		int     xmin, xmax, ymin, ymax, x, y;
368		FLOAT   cxy[2];
369	<	double  pa;
369	>	double  w;
370		RAY     sr;
371		register SPLIST *sp;
372		register int    i;
#	Line 415 | Line 415 | int    x0, xsiz, y0, ysiz;             /* origin and size of subimag
415		continue;       /* missed/blocked */
416		/* modify pixel */
417		if (zbf[y-y0] != NULL &&
418	<	sr.rt < zbf[y-y0][x-x0])
418	>	sr.rt < 0.999*zbf[y-y0][x-x0])
419		zbf[y-y0][x-x0] = sr.rt;
420	<	pa = poly_area(ppoly, npv);
421	<	scalecolor(sr.rcol, pa*hres*vres);
422	<	scalecolor(pic[y-y0][x-x0], (1.-pa*hres*vres));
420	>	else if (!bigdiff(sr.rcol, pic[y-y0][x-x0],
421	>	0.001)) /* source sample */
422	>	setcolor(pic[y-y0][x-x0], 0., 0., 0.);
423	>	w = poly_area(ppoly, npv) * hres * vres;
424	>	scalecolor(sr.rcol, w);
425	>	scalecolor(pic[y-y0][x-x0], 1.-w);
426		addcolor(pic[y-y0][x-x0], sr.rcol);
427		}
428		}

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