src/rt/rvmain.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  rvmain.c - main for rview interactive viewer
 */

/* ====================================================================
 * The Radiance Software License, Version 1.0
 *
 * Copyright (c) 1990 - 2002 The Regents of the University of California,
 * through Lawrence Berkeley National Laboratory.   All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *         notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *           if any, must include the following acknowledgment:
 *             "This product includes Radiance software
 *                 (http://radsite.lbl.gov/)
 *                 developed by the Lawrence Berkeley National Laboratory
 *               (http://www.lbl.gov/)."
 *       Alternately, this acknowledgment may appear in the software itself,
 *       if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
 *       and "The Regents of the University of California" must
 *       not be used to endorse or promote products derived from this
 *       software without prior written permission. For written
 *       permission, please contact [email protected].
 *
 * 5. Products derived from this software may not be called "Radiance",
 *       nor may "Radiance" appear in their name, without prior written
 *       permission of Lawrence Berkeley National Laboratory.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.   IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
 * information on Lawrence Berkeley National Laboratory, please see
 * <http://www.lbl.gov/>.
 */

#include  "ray.h"

#include  "source.h"

#include  "ambient.h"

#include  "random.h"

#include  "paths.h"

#include  <signal.h>

#include  "view.h"

char  *progname;                        /* argv[0] */

char  *octname;                         /* octree name */

char  *sigerr[NSIG];                    /* signal error messages */

char  *shm_boundary = NULL;             /* boundary of shared memory */

char  *errfile = NULL;                  /* error output file */

extern int  greyscale;                  /* map colors to brightness? */
extern char  *dvcname;                  /* output device name */
extern double  exposure;                /* exposure compensation */

extern VIEW  ourview;                   /* viewing parameters */

extern char  rifname[];                 /* rad input file name */

extern int  hresolu;                    /* horizontal resolution */
extern int  vresolu;                    /* vertical resolution */

extern int  psample;                    /* pixel sample size */
extern double  maxdiff;                 /* max. sample difference */

void    onsig();
void    sigdie();
void    printdefaults();


int
main(argc, argv)
int  argc;
char  *argv[];
{
#define  check(ol,al)           if (argv[i][ol] || \
                                badarg(argc-i-1,argv+i+1,al)) \
                                goto badopt
#define  bool(olen,var)         switch (argv[i][olen]) { \
                                case '\0': var = !var; break; \
                                case 'y': case 'Y': case 't': case 'T': \
                                case '+': case '1': var = 1; break; \
                                case 'n': case 'N': case 'f': case 'F': \
                                case '-': case '0': var = 0; break; \
                                default: goto badopt; }
        char  *err;
        int  rval;
        int  i;
                                        /* global program name */
        progname = argv[0] = fixargv0(argv[0]);
                                        /* option city */
        for (i = 1; i < argc; i++) {
                                                /* expand arguments */
                while ((rval = expandarg(&argc, &argv, i)) > 0)
                        ;
                if (rval < 0) {
                        sprintf(errmsg, "cannot expand '%s'", argv[i]);
                        error(SYSTEM, errmsg);
                }
                if (argv[i] == NULL || argv[i][0] != '-')
                        break;                  /* break from options */
                if (!strcmp(argv[i], "-version")) {
                        puts(VersionID);
                        quit(0);
                }
                if (!strcmp(argv[i], "-defaults") ||
                                !strcmp(argv[i], "-help")) {
                        printdefaults();
                        quit(0);
                }
                if (!strcmp(argv[i], "-devices")) {
                        printdevices();
                        quit(0);
                }
                rval = getrenderopt(argc-i, argv+i);
                if (rval >= 0) {
                        i += rval;
                        continue;
                }
                rval = getviewopt(&ourview, argc-i, argv+i);
                if (rval >= 0) {
                        i += rval;
                        continue;
                }
                switch (argv[i][1]) {
                case 'v':                               /* view file */
                        if (argv[i][2] != 'f')
                                goto badopt;
                        check(3,"s");
                        rval = viewfile(argv[++i], &ourview, NULL);
                        if (rval < 0) {
                                sprintf(errmsg,
                                "cannot open view file \"%s\"",
                                                argv[i]);
                                error(SYSTEM, errmsg);
                        } else if (rval == 0) {
                                sprintf(errmsg,
                                        "bad view file \"%s\"",
                                                argv[i]);
                                error(USER, errmsg);
                        }
                        break;
                case 'b':                               /* grayscale */
                        bool(2,greyscale);
                        break;
                case 'p':                               /* pixel */
                        switch (argv[i][2]) {
                        case 's':                               /* sample */
                                check(3,"i");
                                psample = atoi(argv[++i]);
                                break;
                        case 't':                               /* threshold */
                                check(3,"f");
                                maxdiff = atof(argv[++i]);
                                break;
                        case 'e':                               /* exposure */
                                check(3,"f");
                                exposure = atof(argv[++i]);
                                if (argv[i][0] == '+' || argv[i][0] == '-')
                                        exposure = pow(2.0, exposure);
                                break;
                        default:
                                goto badopt;
                        }
                        break;
                case 'w':                               /* warnings */
                        rval = erract[WARNING].pf != NULL;
                        bool(2,rval);
                        if (rval) erract[WARNING].pf = wputs;
                        else erract[WARNING].pf = NULL;
                        break;
                case 'e':                               /* error file */
                        check(2,"s");
                        errfile = argv[++i];
                        break;
                case 'o':                               /* output device */
                        check(2,"s");
                        dvcname = argv[++i];
                        break;
                case 'R':                               /* render input file */
                        check(2,"s");
                        strcpy(rifname, argv[++i]);
                        break;
                default:
                        goto badopt;
                }
        }
        err = setview(&ourview);        /* set viewing parameters */
        if (err != NULL)
                error(USER, err);
                                        /* initialize object types */
        initotypes();
                                        /* initialize urand */
        initurand(2048);
                                        /* set up signal handling */
        sigdie(SIGINT, "Interrupt");
        sigdie(SIGHUP, "Hangup");
        sigdie(SIGTERM, "Terminate");
        sigdie(SIGPIPE, "Broken pipe");
        sigdie(SIGALRM, "Alarm clock");
#ifdef  SIGXCPU
        sigdie(SIGXCPU, "CPU limit exceeded");
        sigdie(SIGXFSZ, "File size exceeded");
#endif
                                        /* open error file */
        if (errfile != NULL) {
                if (freopen(errfile, "a", stderr) == NULL)
                        quit(2);
                fprintf(stderr, "**************\n*** PID %5d: ",
                                getpid());
                printargs(argc, argv, stderr);
                putc('\n', stderr);
                fflush(stderr);
        }
#ifdef  NICE
        nice(NICE);                     /* lower priority */
#endif
                                        /* get octree */
        if (i == argc)
                octname = NULL;
        else if (i == argc-1)
                octname = argv[i];
        else
                goto badopt;
        if (octname == NULL)
                error(USER, "missing octree argument");
                                        /* set up output */
#ifdef  MSDOS
        setmode(fileno(stdout), O_BINARY);
#endif
        readoct(octname, ~(IO_FILES|IO_INFO), &thescene, NULL);
        nsceneobjs = nobjects;

        marksources();                  /* find and mark sources */

        setambient();                   /* initialize ambient calculation */

        rview();                        /* run interactive viewer */

        ambsync();                      /* flush ambient file */

        quit(0);

badopt:
        sprintf(errmsg, "command line error at '%s'", argv[i]);
        error(USER, errmsg);

#undef  check
#undef  bool
}


void
wputs(s)                                /* warning output function */
char    *s;
{
        int  lasterrno = errno;
        eputs(s);
        errno = lasterrno;
}


void
eputs(s)                                /* put string to stderr */
register char  *s;
{
        static int  midline = 0;

        if (!*s)
                return;
        if (!midline++) {
                fputs(progname, stderr);
                fputs(": ", stderr);
        }
        fputs(s, stderr);
        if (s[strlen(s)-1] == '\n') {
                fflush(stderr);
                midline = 0;
        }
}


void
onsig(signo)                            /* fatal signal */
int  signo;
{
        static int  gotsig = 0;

        if (gotsig++)                   /* two signals and we're gone! */
                _exit(signo);

        alarm(15);                      /* allow 15 seconds to clean up */
        signal(SIGALRM, SIG_DFL);       /* make certain we do die */
        eputs("signal - ");
        eputs(sigerr[signo]);
        eputs("\n");
        quit(3);
}


void
sigdie(signo, msg)                      /* set fatal signal */
int  signo;
char  *msg;
{
        if (signal(signo, onsig) == SIG_IGN)
                signal(signo, SIG_IGN);
        sigerr[signo] = msg;
}


void
printdefaults()                 /* print default values to stdout */
{
        register char  *cp;

        printf(greyscale ? "-b+\t\t\t\t# greyscale on\n" :
                        "-b-\t\t\t\t# greyscale off\n");
        printf("-vt%c\t\t\t\t# view type %s\n", ourview.type,
                        ourview.type==VT_PER ? "perspective" :
                        ourview.type==VT_PAR ? "parallel" :
                        ourview.type==VT_HEM ? "hemispherical" :
                        ourview.type==VT_ANG ? "angular" :
                        ourview.type==VT_CYL ? "cylindrical" :
                        "unknown");
        printf("-vp %f %f %f\t# view point\n",
                        ourview.vp[0], ourview.vp[1], ourview.vp[2]);
        printf("-vd %f %f %f\t# view direction\n",
                        ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]);
        printf("-vu %f %f %f\t# view up\n",
                        ourview.vup[0], ourview.vup[1], ourview.vup[2]);
        printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz);
        printf("-vv %f\t\t\t# view vertical size\n", ourview.vert);
        printf("-vo %f\t\t\t# view fore clipping plane\n", ourview.vfore);
        printf("-va %f\t\t\t# view aft clipping plane\n", ourview.vaft);
        printf("-vs %f\t\t\t# view shift\n", ourview.hoff);
        printf("-vl %f\t\t\t# view lift\n", ourview.voff);
        printf("-pe %f\t\t\t# pixel exposure\n", exposure);
        printf("-ps %-9d\t\t\t# pixel sample\n", psample);
        printf("-pt %f\t\t\t# pixel threshold\n", maxdiff);
        printf("-o %s\t\t\t\t# output device\n", dvcname);
        printf(erract[WARNING].pf != NULL ?
                        "-w+\t\t\t\t# warning messages on\n" :
                        "-w-\t\t\t\t# warning messages off\n");
        print_rdefaults();
}
Revision:	2.1
Committed:	Sat Feb 22 02:07:29 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2			static const char RCSid[] = "$Id$";
3			#endif
4			/*
5			* rvmain.c - main for rview interactive viewer
6			*/
7
8			/* ====================================================================
9			* The Radiance Software License, Version 1.0
10			*
11			* Copyright (c) 1990 - 2002 The Regents of the University of California,
12			* through Lawrence Berkeley National Laboratory. All rights reserved.
13			*
14			* Redistribution and use in source and binary forms, with or without
15			* modification, are permitted provided that the following conditions
16			* are met:
17			*
18			* 1. Redistributions of source code must retain the above copyright
19			* notice, this list of conditions and the following disclaimer.
20			*
21			* 2. Redistributions in binary form must reproduce the above copyright
22			* notice, this list of conditions and the following disclaimer in
23			* the documentation and/or other materials provided with the
24			* distribution.
25			*
26			* 3. The end-user documentation included with the redistribution,
27			* if any, must include the following acknowledgment:
28			* "This product includes Radiance software
29			* (http://radsite.lbl.gov/)
30			* developed by the Lawrence Berkeley National Laboratory
31			* (http://www.lbl.gov/)."
32			* Alternately, this acknowledgment may appear in the software itself,
33			* if and wherever such third-party acknowledgments normally appear.
34			*
35			* 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
36			* and "The Regents of the University of California" must
37			* not be used to endorse or promote products derived from this
38			* software without prior written permission. For written
39			* permission, please contact [email protected].
40			*
41			* 5. Products derived from this software may not be called "Radiance",
42			* nor may "Radiance" appear in their name, without prior written
43			* permission of Lawrence Berkeley National Laboratory.
44			*
45			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
46			* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48			* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
49			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
51			* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
52			* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
53			* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54			* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
55			* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56			* SUCH DAMAGE.
57			* ====================================================================
58			*
59			* This software consists of voluntary contributions made by many
60			* individuals on behalf of Lawrence Berkeley National Laboratory. For more
61			* information on Lawrence Berkeley National Laboratory, please see
62			* <http://www.lbl.gov/>.
63			*/
64
65			#include "ray.h"
66
67			#include "source.h"
68
69			#include "ambient.h"
70
71			#include "random.h"
72
73			#include "paths.h"
74
75			#include <signal.h>
76
77			#include "view.h"
78
79			char progname; / argv[0] */
80
81			char octname; / octree name */
82
83			char sigerr[NSIG]; / signal error messages */
84
85			char shm_boundary = NULL; / boundary of shared memory */
86
87			char errfile = NULL; / error output file */
88
89			extern int greyscale; /* map colors to brightness? */
90			extern char dvcname; / output device name */
91			extern double exposure; /* exposure compensation */
92
93			extern VIEW ourview; /* viewing parameters */
94
95			extern char rifname[]; /* rad input file name */
96
97			extern int hresolu; /* horizontal resolution */
98			extern int vresolu; /* vertical resolution */
99
100			extern int psample; /* pixel sample size */
101			extern double maxdiff; /* max. sample difference */
102
103			void onsig();
104			void sigdie();
105			void printdefaults();
106
107
108			int
109			main(argc, argv)
110			int argc;
111			char *argv[];
112			{
113			#define check(ol,al) if (argv[i][ol] \|\| \
114			badarg(argc-i-1,argv+i+1,al)) \
115			goto badopt
116			#define bool(olen,var) switch (argv[i][olen]) { \
117			case '\0': var = !var; break; \
118			case 'y': case 'Y': case 't': case 'T': \
119			case '+': case '1': var = 1; break; \
120			case 'n': case 'N': case 'f': case 'F': \
121			case '-': case '0': var = 0; break; \
122			default: goto badopt; }
123			char *err;
124			int rval;
125			int i;
126			/* global program name */
127			progname = argv[0] = fixargv0(argv[0]);
128			/* option city */
129			for (i = 1; i < argc; i++) {
130			/* expand arguments */
131			while ((rval = expandarg(&argc, &argv, i)) > 0)
132			;
133			if (rval < 0) {
134			sprintf(errmsg, "cannot expand '%s'", argv[i]);
135			error(SYSTEM, errmsg);
136			}
137			if (argv[i] == NULL \|\| argv[i][0] != '-')
138			break; /* break from options */
139			if (!strcmp(argv[i], "-version")) {
140			puts(VersionID);
141			quit(0);
142			}
143			if (!strcmp(argv[i], "-defaults") \|\|
144			!strcmp(argv[i], "-help")) {
145			printdefaults();
146			quit(0);
147			}
148			if (!strcmp(argv[i], "-devices")) {
149			printdevices();
150			quit(0);
151			}
152			rval = getrenderopt(argc-i, argv+i);
153			if (rval >= 0) {
154			i += rval;
155			continue;
156			}
157			rval = getviewopt(&ourview, argc-i, argv+i);
158			if (rval >= 0) {
159			i += rval;
160			continue;
161			}
162			switch (argv[i][1]) {
163			case 'v': /* view file */
164			if (argv[i][2] != 'f')
165			goto badopt;
166			check(3,"s");
167			rval = viewfile(argv[++i], &ourview, NULL);
168			if (rval < 0) {
169			sprintf(errmsg,
170			"cannot open view file \"%s\"",
171			argv[i]);
172			error(SYSTEM, errmsg);
173			} else if (rval == 0) {
174			sprintf(errmsg,
175			"bad view file \"%s\"",
176			argv[i]);
177			error(USER, errmsg);
178			}
179			break;
180			case 'b': /* grayscale */
181			bool(2,greyscale);
182			break;
183			case 'p': /* pixel */
184			switch (argv[i][2]) {
185			case 's': /* sample */
186			check(3,"i");
187			psample = atoi(argv[++i]);
188			break;
189			case 't': /* threshold */
190			check(3,"f");
191			maxdiff = atof(argv[++i]);
192			break;
193			case 'e': /* exposure */
194			check(3,"f");
195			exposure = atof(argv[++i]);
196			if (argv[i][0] == '+' \|\| argv[i][0] == '-')
197			exposure = pow(2.0, exposure);
198			break;
199			default:
200			goto badopt;
201			}
202			break;
203			case 'w': /* warnings */
204			rval = erract[WARNING].pf != NULL;
205			bool(2,rval);
206			if (rval) erract[WARNING].pf = wputs;
207			else erract[WARNING].pf = NULL;
208			break;
209			case 'e': /* error file */
210			check(2,"s");
211			errfile = argv[++i];
212			break;
213			case 'o': /* output device */
214			check(2,"s");
215			dvcname = argv[++i];
216			break;
217			case 'R': /* render input file */
218			check(2,"s");
219			strcpy(rifname, argv[++i]);
220			break;
221			default:
222			goto badopt;
223			}
224			}
225			err = setview(&ourview); /* set viewing parameters */
226			if (err != NULL)
227			error(USER, err);
228			/* initialize object types */
229			initotypes();
230			/* initialize urand */
231			initurand(2048);
232			/* set up signal handling */
233			sigdie(SIGINT, "Interrupt");
234			sigdie(SIGHUP, "Hangup");
235			sigdie(SIGTERM, "Terminate");
236			sigdie(SIGPIPE, "Broken pipe");
237			sigdie(SIGALRM, "Alarm clock");
238			#ifdef SIGXCPU
239			sigdie(SIGXCPU, "CPU limit exceeded");
240			sigdie(SIGXFSZ, "File size exceeded");
241			#endif
242			/* open error file */
243			if (errfile != NULL) {
244			if (freopen(errfile, "a", stderr) == NULL)
245			quit(2);
246			fprintf(stderr, "************\n* PID %5d: ",
247			getpid());
248			printargs(argc, argv, stderr);
249			putc('\n', stderr);
250			fflush(stderr);
251			}
252			#ifdef NICE
253			nice(NICE); /* lower priority */
254			#endif
255			/* get octree */
256			if (i == argc)
257			octname = NULL;
258			else if (i == argc-1)
259			octname = argv[i];
260			else
261			goto badopt;
262			if (octname == NULL)
263			error(USER, "missing octree argument");
264			/* set up output */
265			#ifdef MSDOS
266			setmode(fileno(stdout), O_BINARY);
267			#endif
268			readoct(octname, ~(IO_FILES\|IO_INFO), &thescene, NULL);
269			nsceneobjs = nobjects;
270
271			marksources(); /* find and mark sources */
272
273			setambient(); /* initialize ambient calculation */
274
275			rview(); /* run interactive viewer */
276
277			ambsync(); /* flush ambient file */
278
279			quit(0);
280
281			badopt:
282			sprintf(errmsg, "command line error at '%s'", argv[i]);
283			error(USER, errmsg);
284
285			#undef check
286			#undef bool
287			}
288
289
290			void
291			wputs(s) /* warning output function */
292			char *s;
293			{
294			int lasterrno = errno;
295			eputs(s);
296			errno = lasterrno;
297			}
298
299
300			void
301			eputs(s) /* put string to stderr */
302			register char *s;
303			{
304			static int midline = 0;
305
306			if (!*s)
307			return;
308			if (!midline++) {
309			fputs(progname, stderr);
310			fputs(": ", stderr);
311			}
312			fputs(s, stderr);
313			if (s[strlen(s)-1] == '\n') {
314			fflush(stderr);
315			midline = 0;
316			}
317			}
318
319
320			void
321			onsig(signo) /* fatal signal */
322			int signo;
323			{
324			static int gotsig = 0;
325
326			if (gotsig++) /* two signals and we're gone! */
327			_exit(signo);
328
329			alarm(15); /* allow 15 seconds to clean up */
330			signal(SIGALRM, SIG_DFL); /* make certain we do die */
331			eputs("signal - ");
332			eputs(sigerr[signo]);
333			eputs("\n");
334			quit(3);
335			}
336
337
338			void
339			sigdie(signo, msg) /* set fatal signal */
340			int signo;
341			char *msg;
342			{
343			if (signal(signo, onsig) == SIG_IGN)
344			signal(signo, SIG_IGN);
345			sigerr[signo] = msg;
346			}
347
348
349			void
350			printdefaults() /* print default values to stdout */
351			{
352			register char *cp;
353
354			printf(greyscale ? "-b+\t\t\t\t# greyscale on\n" :
355			"-b-\t\t\t\t# greyscale off\n");
356			printf("-vt%c\t\t\t\t# view type %s\n", ourview.type,
357			ourview.type==VT_PER ? "perspective" :
358			ourview.type==VT_PAR ? "parallel" :
359			ourview.type==VT_HEM ? "hemispherical" :
360			ourview.type==VT_ANG ? "angular" :
361			ourview.type==VT_CYL ? "cylindrical" :
362			"unknown");
363			printf("-vp %f %f %f\t# view point\n",
364			ourview.vp[0], ourview.vp[1], ourview.vp[2]);
365			printf("-vd %f %f %f\t# view direction\n",
366			ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]);
367			printf("-vu %f %f %f\t# view up\n",
368			ourview.vup[0], ourview.vup[1], ourview.vup[2]);
369			printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz);
370			printf("-vv %f\t\t\t# view vertical size\n", ourview.vert);
371			printf("-vo %f\t\t\t# view fore clipping plane\n", ourview.vfore);
372			printf("-va %f\t\t\t# view aft clipping plane\n", ourview.vaft);
373			printf("-vs %f\t\t\t# view shift\n", ourview.hoff);
374			printf("-vl %f\t\t\t# view lift\n", ourview.voff);
375			printf("-pe %f\t\t\t# pixel exposure\n", exposure);
376			printf("-ps %-9d\t\t\t# pixel sample\n", psample);
377			printf("-pt %f\t\t\t# pixel threshold\n", maxdiff);
378			printf("-o %s\t\t\t\t# output device\n", dvcname);
379			printf(erract[WARNING].pf != NULL ?
380			"-w+\t\t\t\t# warning messages on\n" :
381			"-w-\t\t\t\t# warning messages off\n");
382			print_rdefaults();
383			}