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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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} |
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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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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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case 'f': /* file */ |
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gotvfile = viewfile(argv[++i], &ourview); |
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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); |
| 155 |
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} else if (gotvfile == 0) { |
| 156 |
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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); |
| 160 |
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} |
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break; |
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default: |
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goto unkopt; |
| 164 |
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} |
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break; |
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#endif |
| 167 |
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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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} |
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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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#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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case 'y': /* y resolution */ |
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vresolu = atoi(argv[++i]); |
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break; |
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#endif |
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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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case 'e': /* error file */ |
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errfile = argv[++i]; |
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break; |
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case 'l': /* limit */ |
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switch (argv[i][2]) { |
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case 'r': /* recursion */ |
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maxdepth = atoi(argv[++i]); |
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break; |
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case 'w': /* weight */ |
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minweight = atof(argv[++i]); |
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break; |
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default: |
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goto unkopt; |
| 225 |
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} |
| 226 |
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break; |
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#if RPICT |
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case 'r': /* recover file */ |
| 229 |
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recover = argv[++i]; |
| 230 |
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break; |
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case 't': /* timer */ |
| 232 |
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ralrm = atoi(argv[++i]); |
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break; |
| 234 |
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#endif |
| 235 |
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case 'a': /* ambient */ |
| 236 |
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switch (argv[i][2]) { |
| 237 |
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case 'v': /* value */ |
| 238 |
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setcolor(ambval, atof(argv[i+1]), |
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atof(argv[i+2]), |
| 240 |
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atof(argv[i+3])); |
| 241 |
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i += 3; |
| 242 |
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break; |
| 243 |
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case 'a': /* accuracy */ |
| 244 |
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ambacc = atof(argv[++i]); |
| 245 |
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break; |
| 246 |
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case 'r': /* resolution */ |
| 247 |
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ambres = atoi(argv[++i]); |
| 248 |
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break; |
| 249 |
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case 'd': /* divisions */ |
| 250 |
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ambdiv = atoi(argv[++i]); |
| 251 |
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break; |
| 252 |
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case 's': /* super-samp */ |
| 253 |
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ambssamp = atoi(argv[++i]); |
| 254 |
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break; |
| 255 |
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case 'b': /* bounces */ |
| 256 |
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ambounce = atoi(argv[++i]); |
| 257 |
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break; |
| 258 |
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case 'i': /* include */ |
| 259 |
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if (ambincl != 1) { |
| 260 |
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ambincl = 1; |
| 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; |
| 265 |
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case 'e': /* exclude */ |
| 266 |
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if (ambincl != 0) { |
| 267 |
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ambincl = 0; |
| 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; |
| 272 |
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case 'f': /* file */ |
| 273 |
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ambfile= argv[++i]; |
| 274 |
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break; |
| 275 |
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default: |
| 276 |
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goto unkopt; |
| 277 |
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} |
| 278 |
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break; |
| 279 |
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#if RTRACE |
| 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]; |
| 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 |
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error(USER, err); |
| 329 |
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#endif |
| 330 |
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/* set up signal handling */ |
| 331 |
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sigdie(SIGINT, "Interrupt"); |
| 332 |
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sigdie(SIGHUP, "Hangup"); |
| 333 |
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sigdie(SIGTERM, "Terminate"); |
| 334 |
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sigdie(SIGPIPE, "Broken pipe"); |
| 335 |
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#ifdef SIGXCPU |
| 336 |
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sigdie(SIGXCPU, "CPU limit exceeded"); |
| 337 |
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sigdie(SIGXFSZ, "File size exceeded"); |
| 338 |
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#endif |
| 339 |
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#if RPICT |
| 340 |
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signal(SIGALRM, report); |
| 341 |
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diemask |= sigmask(SIGALRM); |
| 342 |
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#else |
| 343 |
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sigdie(SIGALRM, "Alarm clock"); |
| 344 |
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#endif |
| 345 |
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/* open error file */ |
| 346 |
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if (errfile != NULL) { |
| 347 |
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if (freopen(errfile, "a", stderr) == NULL) |
| 348 |
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quit(1); |
| 349 |
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fprintf(stderr, "**************\n*** PID %5d: ", |
| 350 |
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getpid()); |
| 351 |
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printargs(argc, argv, stderr); |
| 352 |
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fputs("\n", stderr); |
| 353 |
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fflush(stderr); |
| 354 |
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} |
| 355 |
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#ifdef NICE |
| 356 |
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nice(NICE); /* lower priority */ |
| 357 |
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#endif |
| 358 |
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#if RVIEW |
| 359 |
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loadflags &= ~IO_INFO; |
| 360 |
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#endif |
| 361 |
|
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#if RPICT |
| 362 |
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if (i == argc) |
| 363 |
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readoct(NULL, loadflags, &thescene, NULL); |
| 364 |
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else |
| 365 |
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#endif |
| 366 |
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if (i == argc-1) |
| 367 |
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readoct(argv[i], loadflags, &thescene, NULL); |
| 368 |
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else |
| 369 |
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error(USER, "single octree required"); |
| 370 |
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| 371 |
|
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if (loadflags & IO_INFO) { /* print header */ |
| 372 |
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printargs(i, argv, stdout); |
| 373 |
|
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#if RPICT |
| 374 |
|
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if (gotvfile) { |
| 375 |
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printf(VIEWSTR); |
| 376 |
|
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fprintview(&ourview, stdout); |
| 377 |
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printf("\n"); |
| 378 |
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} |
| 379 |
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#endif |
| 380 |
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printf("\n"); |
| 381 |
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} |
| 382 |
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| 383 |
|
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marksources(); /* find and mark sources */ |
| 384 |
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| 385 |
|
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*amblp = NULL; /* initialize ambient calculation */ |
| 386 |
|
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setambient(ambfile); |
| 387 |
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| 388 |
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#if RPICT |
| 389 |
|
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if (ralrm > 0) /* report init time */ |
| 390 |
|
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report(); |
| 391 |
|
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render(recover); /* render the scene */ |
| 392 |
|
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#endif |
| 393 |
|
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#if RTRACE |
| 394 |
|
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rtrace(NULL); /* trace rays from stdin */ |
| 395 |
|
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#endif |
| 396 |
|
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#if RVIEW |
| 397 |
|
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rview(); /* go */ |
| 398 |
|
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#endif |
| 399 |
|
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quit(0); |
| 400 |
|
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} |
| 401 |
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| 402 |
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| 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 |
|
|
} |
