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#include "source.h" |
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#include "otypes.h" |
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#include "resolu.h" |
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#include "random.h" |
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|
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CUBE thescene; /* our scene */ |
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OBJECT nsceneobjs; /* number of objects in our scene */ |
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|
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int do_irrad = 0; /* compute irradiance? */ |
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|
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int rand_samp = 0; /* pure Monte Carlo sampling? */ |
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|
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void (*trace)() = NULL; /* trace call */ |
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|
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char *tralist[128]; /* list of modifers to trace (or no) */ |
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int traincl = -1; /* include == 1, exclude == 0 */ |
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#define MAXTSET 511 /* maximum number in trace set */ |
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#ifndef MAXTSET |
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#define MAXTSET 1024 /* maximum number in trace set */ |
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#endif |
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OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
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|
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int hresolu = 0; /* horizontal (scan) size */ |
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|
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int backvis = 1; /* back face visibility */ |
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|
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int maxdepth = 8; /* maximum recursion depth */ |
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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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|
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char *ambfile = NULL; /* ambient file name */ |
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static putf_t puta, putd, putf; |
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|
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typedef void oputf_t(RAY *r); |
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static oputf_t oputo, oputd, oputv, oputl, oputL, oputc, |
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oputp, oputn, oputN, oputs, oputw, oputm; |
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static oputf_t oputo, oputd, oputv, oputl, oputL, oputc, oputp, |
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oputn, oputN, oputs, oputw, oputW, oputm, oputM, oputtilde; |
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|
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static void setoutput(char *vs); |
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static void tranotify(OBJECT obj); |
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char *fname |
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) |
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{ |
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< |
long vcount = hresolu>1 ? hresolu*vresolu : vresolu; |
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> |
unsigned long vcount = (hresolu > 1) ? (unsigned long)hresolu*vresolu |
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> |
: vresolu; |
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long nextflush = hresolu; |
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FILE *fp; |
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double d; |
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sprintf(errmsg, "cannot open input file \"%s\"", fname); |
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error(SYSTEM, errmsg); |
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} |
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#ifdef _WIN32 |
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if (inform != 'a') |
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SET_FILE_BINARY(fp); |
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#endif |
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/* set up output */ |
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setoutput(outvals); |
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switch (outform) { |
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d = normalize(direc); |
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if (d == 0.0) { /* zero ==> flush */ |
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bogusray(); |
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< |
if (--nextflush <= 0 || vcount <= 0) { |
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> |
if (--nextflush <= 0 || !vcount) { |
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fflush(stdout); |
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nextflush = hresolu; |
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} |
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} else { |
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< |
samplendx++; |
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> |
samplendx = rand_samp ? random() : samplendx+1; |
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/* compute and print */ |
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if (imm_irrad) |
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irrad(orig, direc); |
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else |
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rad(orig, direc, lim_dist ? d : 0.0); |
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/* flush if time */ |
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< |
if (--nextflush == 0) { |
208 |
> |
if (!--nextflush) { |
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fflush(stdout); |
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nextflush = hresolu; |
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} |
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} |
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if (ferror(stdout)) |
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error(SYSTEM, "write error"); |
215 |
< |
if (--vcount == 0) /* check for end */ |
215 |
> |
if (vcount && !--vcount) /* check for end */ |
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break; |
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} |
218 |
< |
fflush(stdout); |
219 |
< |
if (vcount > 0) |
220 |
< |
error(USER, "read error"); |
218 |
> |
if (fflush(stdout) < 0) |
219 |
> |
error(SYSTEM, "write error"); |
220 |
> |
if (vcount) |
221 |
> |
error(USER, "unexpected EOF on input"); |
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if (fname != NULL) |
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fclose(fp); |
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} |
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|
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|
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static void |
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trace_sources(void) /* trace rays to light sources, also */ |
229 |
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{ |
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int sn; |
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+ |
|
232 |
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for (sn = 0; sn < nsources; sn++) |
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+ |
source[sn].sflags |= SFOLLOW; |
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} |
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|
236 |
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|
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static void |
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setoutput( /* set up output tables */ |
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register char *vs |
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) |
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castonly = 1; |
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while (*vs) |
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switch (*vs++) { |
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+ |
case 'T': /* trace sources */ |
248 |
+ |
if (!*vs) break; |
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+ |
trace_sources(); |
250 |
+ |
/* fall through */ |
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case 't': /* trace */ |
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+ |
if (!*vs) break; |
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*table = NULL; |
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table = every_out; |
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trace = ourtrace; |
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case 'w': /* weight */ |
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*table++ = oputw; |
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break; |
294 |
+ |
case 'W': /* coefficient */ |
295 |
+ |
*table++ = oputW; |
296 |
+ |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
297 |
+ |
error(WARNING, |
298 |
+ |
"-otW accuracy depends on -aa 0 -as 0"); |
299 |
+ |
break; |
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case 'm': /* modifier */ |
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*table++ = oputm; |
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break; |
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+ |
case 'M': /* material */ |
304 |
+ |
*table++ = oputM; |
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+ |
break; |
306 |
+ |
case '~': /* tilde */ |
307 |
+ |
*table++ = oputtilde; |
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+ |
break; |
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} |
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*table = NULL; |
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} |
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{ |
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thisray.rorg[0] = thisray.rorg[1] = thisray.rorg[2] = |
318 |
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thisray.rdir[0] = thisray.rdir[1] = thisray.rdir[2] = 0.0; |
319 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
319 |
> |
thisray.rmax = 0.0; |
320 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
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printvals(&thisray); |
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} |
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|
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VCOPY(thisray.rorg, org); |
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VCOPY(thisray.rdir, dir); |
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thisray.rmax = dmax; |
335 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
335 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
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if (castonly) { |
337 |
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if (!localhit(&thisray, &thescene)) { |
338 |
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if (thisray.ro == &Aftplane) { /* clipped */ |
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thisray.rorg[i] = org[i] + dir[i]; |
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thisray.rdir[i] = -dir[i]; |
361 |
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} |
362 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
362 |
> |
thisray.rmax = 0.0; |
363 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
364 |
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/* pretend we hit surface */ |
365 |
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thisray.rot = 1.0-1e-4; |
366 |
|
thisray.rod = 1.0; |
473 |
|
tabin(r); |
474 |
|
for (tp = every_out; *tp != NULL; tp++) |
475 |
|
(**tp)(r); |
476 |
< |
putchar('\n'); |
476 |
> |
if (outform == 'a') |
477 |
> |
putchar('\n'); |
478 |
|
} |
479 |
|
|
480 |
|
|
483 |
|
RAY *r |
484 |
|
) |
485 |
|
{ |
486 |
< |
register RAY *rp; |
486 |
> |
const RAY *rp; |
487 |
|
|
488 |
|
for (rp = r->parent; rp != NULL; rp = rp->parent) |
489 |
|
putchar('\t'); |
517 |
|
RAY *r |
518 |
|
) |
519 |
|
{ |
485 |
– |
COLR cout; |
486 |
– |
|
520 |
|
if (outform == 'c') { |
521 |
+ |
COLR cout; |
522 |
|
setcolr(cout, colval(r->rcol,RED), |
523 |
|
colval(r->rcol,GRN), |
524 |
|
colval(r->rcol,BLU)); |
636 |
|
|
637 |
|
|
638 |
|
static void |
639 |
+ |
oputW( /* print contribution */ |
640 |
+ |
RAY *r |
641 |
+ |
) |
642 |
+ |
{ |
643 |
+ |
double contr[3]; |
644 |
+ |
|
645 |
+ |
raycontrib(contr, r, PRIMARY); |
646 |
+ |
(*putreal)(contr[RED]); |
647 |
+ |
(*putreal)(contr[GRN]); |
648 |
+ |
(*putreal)(contr[BLU]); |
649 |
+ |
} |
650 |
+ |
|
651 |
+ |
|
652 |
+ |
static void |
653 |
|
oputm( /* print modifier */ |
654 |
|
RAY *r |
655 |
|
) |
662 |
|
else |
663 |
|
putchar('*'); |
664 |
|
putchar('\t'); |
665 |
+ |
} |
666 |
+ |
|
667 |
+ |
|
668 |
+ |
static void |
669 |
+ |
oputM( /* print material */ |
670 |
+ |
RAY *r |
671 |
+ |
) |
672 |
+ |
{ |
673 |
+ |
OBJREC *mat; |
674 |
+ |
|
675 |
+ |
if (r->ro != NULL) { |
676 |
+ |
if ((mat = findmaterial(r->ro)) != NULL) |
677 |
+ |
fputs(mat->oname, stdout); |
678 |
+ |
else |
679 |
+ |
fputs(VOIDID, stdout); |
680 |
+ |
} else |
681 |
+ |
putchar('*'); |
682 |
+ |
putchar('\t'); |
683 |
+ |
} |
684 |
+ |
|
685 |
+ |
|
686 |
+ |
static void |
687 |
+ |
oputtilde( /* output tilde (spacer) */ |
688 |
+ |
RAY *r |
689 |
+ |
) |
690 |
+ |
{ |
691 |
+ |
fputs("~\t", stdout); |
692 |
|
} |
693 |
|
|
694 |
|
|