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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 "platform.h" |
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#include "mkillum.h" |
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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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"-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", "-y", "0", 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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} |
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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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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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#ifndef _WIN32 /* XXX what do we use instead? */ |
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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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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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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); |