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Comparing ray/src/rt/rtrace.c (file contents):
Revision 2.6 by greg, Fri Jul 10 14:56:24 1992 UTC vs.
Revision 2.11 by greg, Wed Jan 20 15:19:51 1993 UTC

#	Line 50 | Line 50 | double  shadthresh = .05;              /* shadow threshold */
50		double  shadcert = .5;                  /* shadow certainty */
51		int  directrelay = 1;                   /* number of source relays */
52		int  vspretest = 512;                   /* virtual source pretest density */
53	<	int  directinvis = 0;                   /* sources invisible? */
53	>	int  directvis = 1;                     /* sources visible? */
54		double  srcsizerat = .25;               /* maximum ratio source size/dist. */
55
56		double  specthresh = .15;               /* specular sampling threshold */
#	Line 73 | Line 73 | extern OBJREC  Lamb;                   /* a Lambertian surface */
73		static RAY  thisray;                    /* for our convenience */
74
75		static int  oputo(), oputd(), oputv(), oputl(), oputL(),
76	<	oputp(), oputn(), oputs(), oputw(), oputm();
76	>	oputp(), oputn(), oputN(), oputs(), oputw(), oputm();
77
78		static int  (*ray_out[10])(), (*every_out[10])();
79		static int  castonly;
#	Line 86 | Line 86 | static int  (*putreal)();
86		quit(code)                      /* quit program */
87		int  code;
88		{
89	+	#ifndef  NIX
90	+	headclean();            /* delete header file */
91	+	pfclean();              /* clean up persist files */
92	+	#endif
93		exit(code);
94		}
95
#	Line 118 | Line 122 | char  *fname;
122		sprintf(errmsg, "cannot open input file \"%s\"", fname);
123		error(SYSTEM, errmsg);
124		}
125	+	#ifdef MSDOS
126	+	if (inform != 'a')
127	+	setmode(fileno(fp), O_BINARY);
128	+	#endif
129		/* set up output */
130		setoutput(outvals);
131		switch (outform) {
#	Line 131 | Line 139 | char  *fname;
139		default:
140		error(CONSISTENCY, "botched output format");
141		}
134	–	fputformat(formstr(outform), stdout);
135	–	putchar('\n');
142		if (hresolu > 0 && vresolu > 0)
143		fprtresolu(hresolu, vresolu, stdout);
144		/* process file */
#	Line 200 | Line 206 | register char  *vs;
206		case 'p':                               /* point */
207		*table++ = oputp;
208		break;
209	<	case 'n':                               /* normal */
209	>	case 'n':                               /* perturbed normal */
210		*table++ = oputn;
211	+	castonly = 0;
212		break;
213	+	case 'N':                               /* unperturbed normal */
214	+	*table++ = oputN;
215	+	break;
216		case 's':                               /* surface */
217		*table++ = oputs;
218		break;
#	Line 398 | Line 408 | register RAY  *r;
408
409
410		static
411	<	oputn(r)                                /* print normal */
411	>	oputN(r)                                /* print unperturbed normal */
412		register RAY  *r;
413		{
414		if (r->rot < FHUGE) {
#	Line 410 | Line 420 | register RAY  *r;
420		(*putreal)(0.0);
421		(*putreal)(0.0);
422		}
423	+	}
424	+
425	+
426	+	static
427	+	oputn(r)                                /* print perturbed normal */
428	+	RAY  *r;
429	+	{
430	+	FVECT  pnorm;
431	+
432	+	if (r->rot >= FHUGE) {
433	+	(*putreal)(0.0);
434	+	(*putreal)(0.0);
435	+	(*putreal)(0.0);
436	+	return;
437	+	}
438	+	raynormal(pnorm, r);
439	+	(*putreal)(pnorm[0]);
440	+	(*putreal)(pnorm[1]);
441	+	(*putreal)(pnorm[2]);
442		}
443
444

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