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/* Copyright (c) 1991 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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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Make illum sources for optimizing rendering process |
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*/ |
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#include "mkillum.h" |
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#include <signal.h> |
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#include <ctype.h> |
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#include <stdio.h> |
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#include "standard.h" |
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#include "platform.h" |
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#include "mkillum.h" |
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|
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/* default parameters */ |
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#define SAMPDENS 48 /* points per projected steradian */ |
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#define NSAMPS 32 /* samples per point */ |
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#define S_ALL 3 /* select all */ |
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/* rtrace command and defaults */ |
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char *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-di+", |
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char *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-dv-", |
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"-ab", "2", "-ad", "256", "-as", "128", "-aa", ".15", }; |
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int rtargc = 14; |
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/* overriding rtrace options */ |
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char *myrtopts[] = { "-I-", "-i-", "-ov", "-h-", "-fff", NULL }; |
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char *myrtopts[] = { "-I-", "-i-", "-ld-", "-ov", "-h-", |
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"-fff", "-y", "0", NULL }; |
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struct rtproc rt; /* our rtrace process */ |
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int warnings = 1; /* print warnings? */ |
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extern char *fgetline(), *fgetword(), *sskip(), |
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*atos(), *iskip(), *fskip(), *strcpy(); |
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extern FILE *popen(); |
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main(argc, argv) /* compute illum distributions using rtrace */ |
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int argc; |
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char *argv[]; |
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{ |
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extern char *getenv(), *getpath(); |
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char *rtpath; |
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FILE *fp; |
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register int i; |
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gargv = argv; |
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/* set up rtrace command */ |
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for (i = 1; i < argc; i++) { |
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if (argv[i][0] == '<' && !argv[i][1]) |
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if (argv[i][0] == '<' && argv[i][1] == '\0') |
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break; |
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rtargv[rtargc++] = argv[i]; |
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if (argv[i][0] == '-' && argv[i][1] == 'w') |
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warnings = !warnings; |
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switch (argv[i][2]) { |
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case '\0': |
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warnings = !warnings; |
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break; |
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case '+': |
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case 'T': case 't': |
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case 'Y': case 'y': |
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case '1': |
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warnings = 1; |
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break; |
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case '-': |
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case 'F': case 'f': |
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case 'N': case 'n': |
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case '0': |
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warnings = 0; |
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break; |
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} |
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} |
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if ((gargc = i) < 2) |
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error(USER, "too few arguments"); |
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gargc = i; |
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rtargc--; |
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for (i = 0; myrtopts[i] != NULL; i++) |
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rtargv[rtargc++] = myrtopts[i]; |
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perror(rtpath); |
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exit(1); |
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} |
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if (gargc < 2 || argv[gargc-1][0] == '-') |
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error(USER, "missing octree argument"); |
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/* else initialize and run our calculation */ |
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init(); |
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if (gargc+1 < argc) |
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} |
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void |
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quit(status) /* exit with status */ |
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int status; |
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{ |
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int rtstat; |
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rtstat = close_process(rt.pd); |
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rtstat = close_process(&(rt.pd)); |
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if (status == 0) |
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if (rtstat < 0) |
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error(WARNING, |
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ofun[OBJ_SPHERE].funp = o_sphere; |
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ofun[OBJ_RING].funp = o_ring; |
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/* set up signal handling */ |
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#ifdef SIGPIPE /* not present on Windows */ |
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signal(SIGPIPE, quit); |
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#endif |
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/* start rtrace process */ |
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errno = 0; |
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maxbytes = open_process(rt.pd, rtargv); |
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maxbytes = open_process(&(rt.pd), rtargv); |
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if (maxbytes == 0) { |
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eputs(rtargv[0]); |
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eputs(": command not found\n"); |
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error(SYSTEM, "out of memory in init"); |
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rt.nrays = 0; |
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/* set up urand */ |
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initurand(2048); |
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initurand(16384); |
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} |
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void |
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eputs(s) /* put string to stderr */ |
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register char *s; |
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{ |
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} |
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void |
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wputs(s) /* print warning if enabled */ |
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char *s; |
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{ |
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case ' ': |
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case '\t': |
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case '\n': |
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case '\r': |
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case '\f': |
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cp++; |
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continue; |
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case 'm': /* material name */ |
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if (*++cp != '=') |
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break; |
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if (!*++cp) |
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if (!*++cp || isspace(*cp)) |
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break; |
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atos(thisillum.matname, MAXSTR, cp); |
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cp = sskip(cp); |
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case 'f': /* data file name */ |
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if (*++cp != '=') |
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break; |
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if (!*++cp) { |
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if (!*++cp || isspace(*cp)) { |
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strcpy(thisillum.datafile,thisillum.matname); |
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thisillum.dfnum = 0; |
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thisillum.flags &= ~IL_DATCLB; |
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case 'd': /* point sample density */ |
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if (*++cp != '=') |
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break; |
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if (!isintd(++cp, " \t\n")) |
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if (!isintd(++cp, " \t\n\r")) |
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break; |
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thisillum.sampdens = atoi(cp); |
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cp = sskip(cp); |
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case 's': /* point super-samples */ |
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if (*++cp != '=') |
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break; |
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if (!isintd(++cp, " \t\n")) |
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if (!isintd(++cp, " \t\n\r")) |
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break; |
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thisillum.nsamps = atoi(cp); |
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cp = sskip(cp); |
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case 'b': /* brightness */ |
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if (*++cp != '=') |
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break; |
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if (!isfltd(++cp, " \t\n")) |
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if (!isfltd(++cp, " \t\n\r")) |
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break; |
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thisillum.minbrt = atof(cp); |
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if (thisillum.minbrt < 0.) |
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case 'o': /* output file */ |
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if (*++cp != '=') |
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break; |
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if (!*++cp) |
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if (!*++cp || isspace(*cp)) |
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break; |
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atos(buf, sizeof(buf), cp); |
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cp = sskip(cp); |
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return; |
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} |
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opterr: /* skip faulty option */ |
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cp = sskip(cp); |
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while (*cp && !isspace(*cp)) |
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cp++; |
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nerrs++; |
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} |
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/* print header? */ |
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{ |
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printf("m=%-15s\t\t# material name\n", thisillum.matname); |
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printf("f=%-15s\t\t# data file name\n", thisillum.datafile); |
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printf("c=n\t\t\t\t# color none\n"); |
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if (thisillum.flags & IL_COLAVG) |
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if (thisillum.flags & IL_COLDST) |
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printf("c=d\t\t\t\t# color distribution\n"); |
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else |
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printf("c=a\t\t\t\t# color average\n"); |
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else |
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printf("c=n\t\t\t\t# color none\n"); |
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if (thisillum.flags & IL_LIGHT) |
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printf("l+\t\t\t\t# light type on\n"); |
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else |
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printf("l-\t\t\t\t# light type off\n"); |
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printf("d=%d\t\t\t\t# density of points\n", thisillum.sampdens); |
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printf("s=%d\t\t\t\t# samples per point\n", thisillum.nsamps); |
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printf("b=%f\t\t\t# minimum average brightness\n", thisillum.minbrt); |
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if (fgetword(str, MAXSTR, fp) == NULL) |
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goto readerr; |
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/* is it an alias? */ |
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if (!strcmp(str, ALIASID)) { |
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if (!strcmp(str, ALIASKEY)) { |
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if (fgetword(str, MAXSTR, fp) == NULL) |
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goto readerr; |
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printf("\n%s %s %s", thisillum.altmat, ALIASID, str); |
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printf("\n%s %s %s", thisillum.altmat, ALIASKEY, str); |
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if (fgetword(str, MAXSTR, fp) == NULL) |
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goto readerr; |
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printf("\t%s\n", str); |