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#include "otypes.h" |
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#include "platform.h" |
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char *shm_boundary = NULL; /* boundary of shared memory */ |
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CUBE thescene; /* our scene */ |
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OBJECT nsceneobjs; /* number of objects in our scene */ |
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int do_irrad = 0; /* compute irradiance? */ |
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int rand_samp = 0; /* pure Monte Carlo sampling? */ |
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int rand_samp = 1; /* pure Monte Carlo sampling? */ |
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .03; /* shadow threshold */ |
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int backvis = 1; /* back face visibility */ |
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int maxdepth = 8; /* maximum recursion depth */ |
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double minweight = 5e-4; /* minimum ray weight */ |
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int maxdepth = -10; /* maximum recursion depth */ |
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double minweight = 2e-3; /* minimum ray weight */ |
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char *ambfile = NULL; /* ambient file name */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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int lastray = 0; /* last ray number sent */ |
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int lastdone = 0; /* last ray output */ |
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/* Close output stream and free record */ |
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static void |
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closestream(void *p) |
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{ |
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STREAMOUT *sop = (STREAMOUT *)p; |
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int status = 0; |
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if (sop->outpipe) |
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status = pclose(sop->ofp); |
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else if (sop->ofp != stdout) |
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status = fclose(sop->ofp); |
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if (status) |
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error(SYSTEM, "error closing output stream"); |
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free(p); |
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} |
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|
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LUTAB ofiletab = LU_SINIT(free,closestream); /* output file table */ |
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|
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#define OF_MODIFIER 01 |
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#define OF_BIN 02 |
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|
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static void mcfree(void *p) { epfree((*(MODCONT *)p).binv); free(p); } |
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LUTAB modconttab = LU_SINIT(NULL,mcfree); /* modifier lookup table */ |
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if (nproc > MAXPROCESS) |
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sprintf(errmsg, "too many processes requested -- reducing to %d", |
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nproc = MAXPROCESS); |
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|
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if (nproc > 1) { |
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preload_objs(); /* preload auxiliary data */ |
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/* set shared memory boundary */ |
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shm_boundary = strcpy((char *)malloc(16), "SHM_BOUNDARY"); |
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} |
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if ((nproc > 1) & (accumulate <= 0)) |
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zero_record(0); /* prime our queue to accumulate */ |
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put_zero_record(0); /* prime our queue to accumulate */ |
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|
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if (recover) { /* recover previous output? */ |
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if (accumulate <= 0) { |
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reload_output(); |
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if ((nproc > 1) & (accumulate <= 0)) |
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if (nproc > 1) |
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queue_modifiers(); |
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} else |
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recover_output(); |
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static int ignore_warning_given = 0; |
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FVECT orig, direc; |
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double d; |
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/* initialize & fork */ |
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/* initialize (& fork more of us) */ |
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rcinit(); |
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/* load rays from stdin & process */ |
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#ifdef getc_unlocked |
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flockfile(stdin); /* avoid lock/unlock overhead */ |
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flockfile(stdin); /* avoid mutex overhead */ |
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#endif |
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while (getvec(orig) == 0 && getvec(direc) == 0) { |
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d = normalize(direc); |