| 1 |
greg |
1.1 |
/* Copyright (c) 1986 Regents of the University of California */
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#ifndef lint
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static char SCCSid[] = "$SunId$ LBL";
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#endif
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/*
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* rmain.c - main for ray tracing programs
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*
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* 3/24/87
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*/
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/* for flaky pre-processors */
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#ifndef RPICT
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#define RPICT 0
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#endif
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#ifndef RTRACE
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#define RTRACE 0
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#endif
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#ifndef RVIEW
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#define RVIEW 0
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#endif
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#include "ray.h"
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#include "octree.h"
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#include <signal.h>
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#include "view.h"
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#ifndef DEFPATH
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#define DEFPATH ":/usr/local/lib/ray"
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#endif
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#define ULIBVAR "RAYPATH"
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char *progname; /* argv[0] */
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char *libpath; /* library directory list */
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int diemask = 0; /* signals we catch */
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char *sigerr[NSIG]; /* signal error messages */
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extern int stderr_v(); /* standard error output */
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int (*errvec)() = stderr_v; /* error output vector */
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int (*wrnvec)() = stderr_v; /* warning output vector */
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int (*cmdvec)() = NULL; /* command error vector */
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int (*trace)() = NULL; /* trace call */
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CUBE thescene; /* our scene */
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extern int ralrm; /* seconds between reports */
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extern float pctdone; /* percentage done */
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extern int greyscale; /* map colors to brightness? */
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extern char *devname; /* output device name */
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extern int inform; /* input format */
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extern int outform; /* output format */
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extern char *outvals; /* output values */
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extern VIEW ourview; /* viewing parameters */
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extern int hresolu; /* horizontal resolution */
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extern int vresolu; /* vertical resolution */
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extern int psample; /* pixel sample size */
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extern double maxdiff; /* max. sample difference */
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extern double dstrpix; /* square pixel distribution */
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extern double dstrsrc; /* square source distribution */
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extern int maxdepth; /* maximum recursion depth */
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extern double minweight; /* minimum ray weight */
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extern long nrays; /* number of rays traced */
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extern COLOR ambval; /* ambient value */
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extern double ambacc; /* ambient accuracy */
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extern int ambres; /* ambient resolution */
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extern int ambdiv; /* ambient divisions */
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extern int ambssamp; /* ambient super-samples */
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extern int ambounce; /* ambient bounces */
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extern char *amblist[]; /* ambient include/exclude list */
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extern int ambincl; /* include == 1, exclude == 0 */
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main(argc, argv)
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int argc;
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char *argv[];
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{
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double atof();
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char *getenv();
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int report();
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char *err;
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char *recover = NULL;
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char *errfile = NULL;
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char *ambfile = NULL;
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char **amblp = amblist;
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int loadflags = ~IO_FILES;
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int gotvfile = 0;
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int i;
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/* global program name */
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progname = argv[0];
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/* get library path */
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if ((libpath = getenv(ULIBVAR)) == NULL)
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libpath = DEFPATH;
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/* option city */
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for (i = 1; i < argc && argv[i][0] == '-'; i++) {
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if (!strcmp(argv[i], "-defaults")) {
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printdefaults();
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quit(0);
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}
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#if RVIEW
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if (!strcmp(argv[i], "-devices")) {
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printdevices();
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quit(0);
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| 118 |
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}
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#endif
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switch (argv[i][1]) {
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#if RPICT|RVIEW
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case 'v': /* view */
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switch (argv[i][2]) {
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case 't': /* type */
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ourview.type = argv[i][3];
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break;
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case 'p': /* point */
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ourview.vp[0] = atof(argv[++i]);
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ourview.vp[1] = atof(argv[++i]);
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ourview.vp[2] = atof(argv[++i]);
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break;
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case 'd': /* direction */
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ourview.vdir[0] = atof(argv[++i]);
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ourview.vdir[1] = atof(argv[++i]);
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ourview.vdir[2] = atof(argv[++i]);
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break;
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case 'u': /* up */
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ourview.vup[0] = atof(argv[++i]);
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ourview.vup[1] = atof(argv[++i]);
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ourview.vup[2] = atof(argv[++i]);
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break;
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| 142 |
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case 'h': /* horizontal */
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ourview.horiz = atof(argv[++i]);
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break;
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case 'v': /* vertical */
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ourview.vert = atof(argv[++i]);
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break;
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| 148 |
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case 'f': /* file */
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gotvfile = viewfile(argv[++i], &ourview);
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| 150 |
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if (gotvfile < 0) {
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sprintf(errmsg,
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"cannot open view file \"%s\"",
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argv[i]);
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error(SYSTEM, errmsg);
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} else if (gotvfile == 0) {
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sprintf(errmsg,
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"bad view file \"%s\"",
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argv[i]);
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error(USER, errmsg);
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}
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break;
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default:
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goto unkopt;
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}
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break;
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#endif
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case 'd': /* distribute */
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switch (argv[i][2]) {
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#if RPICT
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case 'p': /* pixel */
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dstrpix = atof(argv[++i]);
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break;
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#endif
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case 's': /* source */
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dstrsrc = atof(argv[++i]);
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break;
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default:
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goto unkopt;
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}
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break;
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#if RPICT|RVIEW
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case 's': /* sample */
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switch (argv[i][2]) {
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case 'p': /* pixel */
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psample = atoi(argv[++i]);
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break;
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case 'd': /* difference */
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maxdiff = atof(argv[++i]);
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break;
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default:
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goto unkopt;
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| 192 |
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}
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break;
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case 'x': /* x resolution */
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ourview.hresolu = atoi(argv[++i]);
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break;
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case 'y': /* y resolution */
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ourview.vresolu = atoi(argv[++i]);
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break;
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| 200 |
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#endif
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#if RTRACE
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case 'x': /* x resolution */
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hresolu = atoi(argv[++i]);
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break;
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| 205 |
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case 'y': /* y resolution */
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vresolu = atoi(argv[++i]);
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break;
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| 208 |
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#endif
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| 209 |
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case 'w': /* warnings */
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wrnvec = wrnvec==NULL ? stderr_v : NULL;
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break;
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| 212 |
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case 'e': /* error file */
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| 213 |
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errfile = argv[++i];
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| 214 |
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break;
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| 215 |
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case 'l': /* limit */
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| 216 |
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switch (argv[i][2]) {
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| 217 |
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case 'r': /* recursion */
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| 218 |
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maxdepth = atoi(argv[++i]);
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| 219 |
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break;
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| 220 |
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case 'w': /* weight */
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| 221 |
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minweight = atof(argv[++i]);
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| 222 |
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break;
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| 223 |
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default:
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| 224 |
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goto unkopt;
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| 225 |
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}
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| 226 |
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break;
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| 227 |
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#if RPICT
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| 228 |
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case 'r': /* recover file */
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| 229 |
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recover = argv[++i];
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| 230 |
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break;
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| 231 |
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case 't': /* timer */
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| 232 |
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ralrm = atoi(argv[++i]);
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| 233 |
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break;
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| 234 |
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#endif
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| 235 |
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case 'a': /* ambient */
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| 236 |
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switch (argv[i][2]) {
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| 237 |
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case 'v': /* value */
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| 238 |
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setcolor(ambval, atof(argv[i+1]),
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| 239 |
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atof(argv[i+2]),
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| 240 |
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atof(argv[i+3]));
|
| 241 |
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i += 3;
|
| 242 |
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break;
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| 243 |
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case 'a': /* accuracy */
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| 244 |
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ambacc = atof(argv[++i]);
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| 245 |
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break;
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| 246 |
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case 'r': /* resolution */
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| 247 |
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ambres = atoi(argv[++i]);
|
| 248 |
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break;
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| 249 |
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case 'd': /* divisions */
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| 250 |
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ambdiv = atoi(argv[++i]);
|
| 251 |
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break;
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| 252 |
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case 's': /* super-samp */
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| 253 |
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ambssamp = atoi(argv[++i]);
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| 254 |
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break;
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| 255 |
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case 'b': /* bounces */
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| 256 |
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ambounce = atoi(argv[++i]);
|
| 257 |
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break;
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| 258 |
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case 'i': /* include */
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| 259 |
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if (ambincl != 1) {
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| 260 |
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ambincl = 1;
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| 261 |
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amblp = amblist;
|
| 262 |
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}
|
| 263 |
|
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*amblp++ = argv[++i];
|
| 264 |
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break;
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| 265 |
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case 'e': /* exclude */
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| 266 |
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if (ambincl != 0) {
|
| 267 |
|
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ambincl = 0;
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| 268 |
|
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amblp = amblist;
|
| 269 |
|
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}
|
| 270 |
|
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*amblp++ = argv[++i];
|
| 271 |
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break;
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| 272 |
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case 'f': /* file */
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| 273 |
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ambfile= argv[++i];
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| 274 |
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break;
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| 275 |
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default:
|
| 276 |
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goto unkopt;
|
| 277 |
|
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}
|
| 278 |
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break;
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| 279 |
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#if RTRACE
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| 280 |
|
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case 'f': /* format i/o */
|
| 281 |
|
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switch (argv[i][2]) {
|
| 282 |
|
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case 'a': /* ascii */
|
| 283 |
|
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case 'f': /* float */
|
| 284 |
|
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case 'd': /* double */
|
| 285 |
|
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inform = argv[i][2];
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| 286 |
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break;
|
| 287 |
|
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default:
|
| 288 |
|
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goto unkopt;
|
| 289 |
|
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}
|
| 290 |
|
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switch (argv[i][3]) {
|
| 291 |
|
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case '\0':
|
| 292 |
|
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outform = inform;
|
| 293 |
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break;
|
| 294 |
|
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case 'a': /* ascii */
|
| 295 |
|
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case 'f': /* float */
|
| 296 |
|
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case 'd': /* double */
|
| 297 |
|
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outform = argv[i][3];
|
| 298 |
|
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break;
|
| 299 |
|
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default:
|
| 300 |
|
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goto unkopt;
|
| 301 |
|
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}
|
| 302 |
|
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break;
|
| 303 |
|
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case 'o': /* output */
|
| 304 |
|
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outvals = argv[i]+2;
|
| 305 |
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break;
|
| 306 |
|
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case 'h': /* no header */
|
| 307 |
|
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loadflags &= ~IO_INFO;
|
| 308 |
|
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break;
|
| 309 |
|
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#endif
|
| 310 |
|
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#if RVIEW
|
| 311 |
|
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case 'b': /* black and white */
|
| 312 |
|
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greyscale = !greyscale;
|
| 313 |
|
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break;
|
| 314 |
|
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case 'o': /* output device */
|
| 315 |
|
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devname = argv[++i];
|
| 316 |
|
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break;
|
| 317 |
|
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#endif
|
| 318 |
|
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default:
|
| 319 |
|
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unkopt:
|
| 320 |
|
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sprintf(errmsg, "unknown option: '%s'", argv[i]);
|
| 321 |
|
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error(USER, errmsg);
|
| 322 |
|
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break;
|
| 323 |
|
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}
|
| 324 |
|
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}
|
| 325 |
|
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#if RPICT|RVIEW
|
| 326 |
|
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err = setview(&ourview); /* set viewing parameters */
|
| 327 |
|
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if (err != NULL)
|
| 328 |
|
|
error(USER, err);
|
| 329 |
|
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#endif
|
| 330 |
|
|
/* set up signal handling */
|
| 331 |
|
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sigdie(SIGINT, "Interrupt");
|
| 332 |
|
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sigdie(SIGHUP, "Hangup");
|
| 333 |
|
|
sigdie(SIGTERM, "Terminate");
|
| 334 |
|
|
sigdie(SIGPIPE, "Broken pipe");
|
| 335 |
|
|
#ifdef SIGXCPU
|
| 336 |
|
|
sigdie(SIGXCPU, "CPU limit exceeded");
|
| 337 |
|
|
sigdie(SIGXFSZ, "File size exceeded");
|
| 338 |
|
|
#endif
|
| 339 |
|
|
#if RPICT
|
| 340 |
|
|
signal(SIGALRM, report);
|
| 341 |
|
|
diemask |= sigmask(SIGALRM);
|
| 342 |
|
|
#else
|
| 343 |
|
|
sigdie(SIGALRM, "Alarm clock");
|
| 344 |
|
|
#endif
|
| 345 |
|
|
/* open error file */
|
| 346 |
|
|
if (errfile != NULL) {
|
| 347 |
|
|
if (freopen(errfile, "a", stderr) == NULL)
|
| 348 |
|
|
quit(1);
|
| 349 |
|
|
fprintf(stderr, "**************\n*** PID %5d: ",
|
| 350 |
|
|
getpid());
|
| 351 |
|
|
printargs(argc, argv, stderr);
|
| 352 |
|
|
fputs("\n", stderr);
|
| 353 |
|
|
fflush(stderr);
|
| 354 |
|
|
}
|
| 355 |
|
|
#ifdef NICE
|
| 356 |
|
|
nice(NICE); /* lower priority */
|
| 357 |
|
|
#endif
|
| 358 |
|
|
#if RVIEW
|
| 359 |
|
|
loadflags &= ~IO_INFO;
|
| 360 |
|
|
#endif
|
| 361 |
|
|
#if RPICT
|
| 362 |
|
|
if (i == argc)
|
| 363 |
|
|
readoct(NULL, loadflags, &thescene, NULL);
|
| 364 |
|
|
else
|
| 365 |
|
|
#endif
|
| 366 |
|
|
if (i == argc-1)
|
| 367 |
|
|
readoct(argv[i], loadflags, &thescene, NULL);
|
| 368 |
|
|
else
|
| 369 |
|
|
error(USER, "single octree required");
|
| 370 |
|
|
|
| 371 |
|
|
if (loadflags & IO_INFO) { /* print header */
|
| 372 |
|
|
printargs(i, argv, stdout);
|
| 373 |
|
|
#if RPICT
|
| 374 |
|
|
if (gotvfile) {
|
| 375 |
|
|
printf(VIEWSTR);
|
| 376 |
|
|
fprintview(&ourview, stdout);
|
| 377 |
|
|
printf("\n");
|
| 378 |
|
|
}
|
| 379 |
|
|
#endif
|
| 380 |
|
|
printf("\n");
|
| 381 |
|
|
}
|
| 382 |
|
|
|
| 383 |
|
|
marksources(); /* find and mark sources */
|
| 384 |
|
|
|
| 385 |
|
|
*amblp = NULL; /* initialize ambient calculation */
|
| 386 |
|
|
setambient(ambfile);
|
| 387 |
|
|
|
| 388 |
|
|
#if RPICT
|
| 389 |
|
|
if (ralrm > 0) /* report init time */
|
| 390 |
|
|
report();
|
| 391 |
|
|
render(recover); /* render the scene */
|
| 392 |
|
|
#endif
|
| 393 |
|
|
#if RTRACE
|
| 394 |
|
|
rtrace(NULL); /* trace rays from stdin */
|
| 395 |
|
|
#endif
|
| 396 |
|
|
#if RVIEW
|
| 397 |
|
|
rview(); /* go */
|
| 398 |
|
|
#endif
|
| 399 |
|
|
quit(0);
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
|
| 403 |
|
|
eputs(s) /* error output */
|
| 404 |
|
|
char *s;
|
| 405 |
|
|
{
|
| 406 |
|
|
if (errvec != NULL)
|
| 407 |
|
|
(*errvec)(s);
|
| 408 |
|
|
}
|
| 409 |
|
|
|
| 410 |
|
|
|
| 411 |
|
|
wputs(s) /* warning output */
|
| 412 |
|
|
char *s;
|
| 413 |
|
|
{
|
| 414 |
|
|
if (wrnvec != NULL)
|
| 415 |
|
|
(*wrnvec)(s);
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
|
| 419 |
|
|
cputs(s) /* command error output */
|
| 420 |
|
|
char *s;
|
| 421 |
|
|
{
|
| 422 |
|
|
if (cmdvec != NULL)
|
| 423 |
|
|
(*cmdvec)(s);
|
| 424 |
|
|
}
|
| 425 |
|
|
|
| 426 |
|
|
|
| 427 |
|
|
stderr_v(s) /* put string to stderr */
|
| 428 |
|
|
register char *s;
|
| 429 |
|
|
{
|
| 430 |
|
|
static int inline = 0;
|
| 431 |
|
|
|
| 432 |
|
|
if (!inline++) {
|
| 433 |
|
|
fputs(progname, stderr);
|
| 434 |
|
|
fputs(": ", stderr);
|
| 435 |
|
|
}
|
| 436 |
|
|
fputs(s, stderr);
|
| 437 |
|
|
if (*s && s[strlen(s)-1] == '\n') {
|
| 438 |
|
|
fflush(stderr);
|
| 439 |
|
|
inline = 0;
|
| 440 |
|
|
}
|
| 441 |
|
|
}
|
| 442 |
|
|
|
| 443 |
|
|
|
| 444 |
|
|
onsig(signo) /* fatal signal */
|
| 445 |
|
|
int signo;
|
| 446 |
|
|
{
|
| 447 |
|
|
sigblock(diemask);
|
| 448 |
|
|
eputs("signal - ");
|
| 449 |
|
|
eputs(sigerr[signo]);
|
| 450 |
|
|
eputs("\n");
|
| 451 |
|
|
quit(1);
|
| 452 |
|
|
}
|
| 453 |
|
|
|
| 454 |
|
|
|
| 455 |
|
|
sigdie(signo, msg) /* set fatal signal */
|
| 456 |
|
|
int signo;
|
| 457 |
|
|
char *msg;
|
| 458 |
|
|
{
|
| 459 |
|
|
if (signal(signo, onsig) == SIG_IGN)
|
| 460 |
|
|
signal(signo, SIG_IGN);
|
| 461 |
|
|
else
|
| 462 |
|
|
diemask |= sigmask(signo);
|
| 463 |
|
|
sigerr[signo] = msg;
|
| 464 |
|
|
}
|
| 465 |
|
|
|
| 466 |
|
|
|
| 467 |
|
|
printdefaults() /* print default values to stdout */
|
| 468 |
|
|
{
|
| 469 |
|
|
register char *cp;
|
| 470 |
|
|
|
| 471 |
|
|
#if RPICT|RVIEW
|
| 472 |
|
|
printf("-vt%c\t\t\t\t# view type is %s\n", ourview.type,
|
| 473 |
|
|
ourview.type==VT_PER ? "perspective" :
|
| 474 |
|
|
ourview.type==VT_PAR ? "parallel" :
|
| 475 |
|
|
"unknown");
|
| 476 |
|
|
printf("-vp %f %f %f\t# view point\n",
|
| 477 |
|
|
ourview.vp[0], ourview.vp[1], ourview.vp[2]);
|
| 478 |
|
|
printf("-vd %f %f %f\t# view direction\n",
|
| 479 |
|
|
ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]);
|
| 480 |
|
|
printf("-vu %f %f %f\t# view up\n",
|
| 481 |
|
|
ourview.vup[0], ourview.vup[1], ourview.vup[2]);
|
| 482 |
|
|
printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz);
|
| 483 |
|
|
printf("-vv %f\t\t\t# view vertical size\n", ourview.vert);
|
| 484 |
|
|
printf("-x %-9d\t\t\t# x resolution\n", ourview.hresolu);
|
| 485 |
|
|
printf("-y %-9d\t\t\t# y resolution\n", ourview.vresolu);
|
| 486 |
|
|
#endif
|
| 487 |
|
|
#if RTRACE
|
| 488 |
|
|
printf("-x %-9d\t\t\t# x resolution\n", hresolu);
|
| 489 |
|
|
printf("-y %-9d\t\t\t# y resolution\n", vresolu);
|
| 490 |
|
|
#endif
|
| 491 |
|
|
#if RPICT
|
| 492 |
|
|
printf("-dp %f\t\t\t# distribute pixel\n", dstrpix);
|
| 493 |
|
|
#endif
|
| 494 |
|
|
printf("-ds %f\t\t\t# distribute source\n", dstrsrc);
|
| 495 |
|
|
#if RPICT|RVIEW
|
| 496 |
|
|
printf("-sp %-9d\t\t\t# sample pixel\n", psample);
|
| 497 |
|
|
printf("-sd %f\t\t\t# sample difference\n", maxdiff);
|
| 498 |
|
|
#endif
|
| 499 |
|
|
printf("-av %f %f %f\t# ambient value\n", colval(ambval,RED),
|
| 500 |
|
|
colval(ambval,GRN), colval(ambval, BLU));
|
| 501 |
|
|
printf("-ab %-9d\t\t\t# ambient bounces\n", ambounce);
|
| 502 |
|
|
printf("-aa %f\t\t\t# ambient accuracy\n", ambacc);
|
| 503 |
|
|
printf("-ar %-9d\t\t\t# ambient resolution\n", ambres);
|
| 504 |
|
|
printf("-ad %-9d\t\t\t# ambient divisions\n", ambdiv);
|
| 505 |
|
|
printf("-as %-9d\t\t\t# ambient super-samples\n", ambssamp);
|
| 506 |
|
|
printf("-lr %-9d\t\t\t# limit reflection\n", maxdepth);
|
| 507 |
|
|
printf("-lw %f\t\t\t# limit weight\n", minweight);
|
| 508 |
|
|
#if RPICT
|
| 509 |
|
|
printf("-t %-9d\t\t\t# time between reports\n", ralrm);
|
| 510 |
|
|
#endif
|
| 511 |
|
|
#if RVIEW
|
| 512 |
|
|
printf("-o %s\t\t\t\t# output device\n", devname);
|
| 513 |
|
|
#endif
|
| 514 |
|
|
#if RTRACE
|
| 515 |
|
|
printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n",
|
| 516 |
|
|
inform, outform,
|
| 517 |
|
|
inform=='a' ? "ascii" :
|
| 518 |
|
|
inform=='f' ? "float" : "double",
|
| 519 |
|
|
outform=='a' ? "ascii" :
|
| 520 |
|
|
outform=='f' ? "float" : "double");
|
| 521 |
|
|
printf("-o%s\t\t\t\t# output", outvals);
|
| 522 |
|
|
for (cp = outvals; *cp; cp++)
|
| 523 |
|
|
switch (*cp) {
|
| 524 |
|
|
case 'i': printf(" irradiance"); break;
|
| 525 |
|
|
case 't': printf(" trace"); break;
|
| 526 |
|
|
case 'o': printf(" origin"); break;
|
| 527 |
|
|
case 'd': printf(" direction"); break;
|
| 528 |
|
|
case 'v': printf(" value"); break;
|
| 529 |
|
|
case 'l': printf(" length"); break;
|
| 530 |
|
|
case 'p': printf(" point"); break;
|
| 531 |
|
|
case 'n': printf(" normal"); break;
|
| 532 |
|
|
case 's': printf(" surface"); break;
|
| 533 |
|
|
case 'w': printf(" weight"); break;
|
| 534 |
|
|
case 'm': printf(" modifier"); break;
|
| 535 |
|
|
}
|
| 536 |
|
|
printf("\n");
|
| 537 |
|
|
#endif
|
| 538 |
|
|
}
|
