44 |
|
|
45 |
|
#define AMBFLUSH (BUFSIZ/AMBVALSIZ) |
46 |
|
|
47 |
< |
#define newambval() (AMBVAL *)malloc(sizeof(AMBVAL)) |
47 |
> |
#define AVSIZE (sizeof(AMBVAL)-sizeof(SCOLOR)+sizeof(COLORV)*NCSAMP) |
48 |
> |
#define newambval() (AMBVAL *)malloc(AVSIZE) |
49 |
|
|
50 |
< |
#define tfunc(lwr, x, upr) (((x)-(lwr))/((upr)-(lwr))) |
50 |
> |
#define tfunc(x0, x, x1) (((x)-(x0))/((x1)-(x0))) |
51 |
|
|
52 |
< |
static void initambfile(int creat); |
52 |
> |
static void initambfile(int cre8); |
53 |
|
static void avsave(AMBVAL *av); |
54 |
|
static AMBVAL *avstore(AMBVAL *aval); |
55 |
|
static AMBTREE *newambtree(void); |
63 |
|
static void sortambvals(void); |
64 |
|
|
65 |
|
static int plugaleak(RAY *r, AMBVAL *ap, FVECT anorm, double ang); |
66 |
< |
static double sumambient(COLOR acol, RAY *r, FVECT rn, int al, |
66 |
> |
static double sumambient(SCOLOR acol, RAY *r, FVECT rn, int al, |
67 |
|
AMBTREE *at, FVECT c0, double s); |
68 |
< |
static int makeambient(COLOR acol, RAY *r, FVECT rn, int al); |
69 |
< |
static int extambient(COLOR cr, AMBVAL *ap, FVECT pv, FVECT nv, |
68 |
> |
static int makeambient(SCOLOR acol, RAY *r, FVECT rn, int al); |
69 |
> |
static int extambient(SCOLOR cr, AMBVAL *ap, FVECT pv, FVECT nv, |
70 |
|
FVECT uvw[3]); |
71 |
|
|
72 |
|
#ifdef F_SETLKW |
230 |
|
|
231 |
|
void |
232 |
|
multambient( /* compute ambient component & multiply by coef. */ |
233 |
< |
COLOR aval, |
233 |
> |
SCOLOR aval, |
234 |
|
RAY *r, |
235 |
|
FVECT nrm |
236 |
|
) |
237 |
|
{ |
238 |
|
static double logAvgAbsorp = 1; |
239 |
|
static int rdepth = 0; /* ambient recursion */ |
240 |
< |
COLOR acol, caustic; |
240 |
> |
SCOLOR acol, caustic; |
241 |
|
int i, ok; |
242 |
|
double d, l; |
243 |
|
|
253 |
|
/* PMAP: Factor in specular-diffuse ambient (caustics) from photon |
254 |
|
* map, if enabled and ray is primary, else caustic is zero. Continue |
255 |
|
* with RADIANCE ambient calculation */ |
256 |
< |
copycolor(caustic, aval); |
257 |
< |
ambPmapCaustic(caustic, r, rdepth); |
258 |
< |
|
256 |
> |
{/* XXX TEMPORARY */ |
257 |
> |
COLOR pmc; |
258 |
> |
scolor_color(pmc, aval); |
259 |
> |
ambPmapCaustic(pmc, r, rdepth); |
260 |
> |
setscolor(caustic, colval(pmc,RED), colval(pmc,GRN), colval(pmc,BLU)); |
261 |
> |
} |
262 |
|
if (ambdiv <= 0) /* no ambient calculation */ |
263 |
|
goto dumbamb; |
264 |
|
/* check number of bounces */ |
275 |
|
|
276 |
|
if (nrm != r->ron && DOT(nrm,r->ron) < 0.9999) |
277 |
|
dgp = dgrad; /* compute rotational grad. */ |
278 |
< |
copycolor(acol, aval); |
278 |
> |
copyscolor(acol, aval); |
279 |
|
rdepth++; |
280 |
|
ok = doambient(acol, r, r->rweight, |
281 |
|
uvd, NULL, NULL, dgp, NULL); |
289 |
|
for (i = 3; i--; ) |
290 |
|
d += v1[i] * (dgp[0]*uvd[0][i] + dgp[1]*uvd[1][i]); |
291 |
|
if (d >= 0.05) |
292 |
< |
scalecolor(acol, d); |
292 |
> |
scalescolor(acol, d); |
293 |
|
} |
294 |
< |
copycolor(aval, acol); |
294 |
> |
copyscolor(aval, acol); |
295 |
|
|
296 |
|
/* PMAP: add in caustic */ |
297 |
< |
addcolor(aval, caustic); |
297 |
> |
saddscolor(aval, caustic); |
298 |
|
return; |
299 |
|
} |
300 |
|
/* interpolate ambient value */ |
301 |
< |
setcolor(acol, 0.0, 0.0, 0.0); |
301 |
> |
scolorblack(acol); |
302 |
|
d = sumambient(acol, r, nrm, rdepth, |
303 |
|
&atrunk, thescene.cuorg, thescene.cusize); |
304 |
|
|
305 |
|
if (d > FTINY) { |
306 |
< |
d = 1.0/d; |
307 |
< |
scalecolor(acol, d); |
304 |
< |
multcolor(aval, acol); |
306 |
> |
scalescolor(acol, 1.0/d); |
307 |
> |
smultscolor(aval, acol); |
308 |
|
|
309 |
|
/* PMAP: add in caustic */ |
310 |
< |
addcolor(aval, caustic); |
310 |
> |
saddscolor(aval, caustic); |
311 |
|
return; |
312 |
|
} |
313 |
|
|
316 |
|
rdepth--; |
317 |
|
|
318 |
|
if (ok) { |
319 |
< |
multcolor(aval, acol); /* computed new value */ |
319 |
> |
smultscolor(aval, acol); /* computed new value */ |
320 |
|
|
321 |
|
/* PMAP: add in caustic */ |
322 |
< |
addcolor(aval, caustic); |
322 |
> |
saddscolor(aval, caustic); |
323 |
|
return; |
324 |
|
} |
325 |
|
|
326 |
|
dumbamb: /* return global value */ |
327 |
|
if ((ambvwt <= 0) | (navsum == 0)) { |
328 |
< |
multcolor(aval, ambval); |
328 |
> |
smultcolor(aval, ambval); |
329 |
|
|
330 |
|
/* PMAP: add in caustic */ |
331 |
< |
addcolor(aval, caustic); |
331 |
> |
saddscolor(aval, caustic); |
332 |
|
return; |
333 |
|
} |
334 |
|
|
337 |
|
d = (log(l)*(double)ambvwt + avsum + logAvgAbsorp*navsum) / |
338 |
|
(double)(ambvwt + navsum); |
339 |
|
d = exp(d) / l; |
340 |
< |
scalecolor(aval, d); |
341 |
< |
multcolor(aval, ambval); /* apply color of ambval */ |
340 |
> |
scalescolor(aval, d); |
341 |
> |
smultcolor(aval, ambval); /* apply color of ambval */ |
342 |
|
} else { |
343 |
|
d = exp( avsum/(double)navsum + logAvgAbsorp ); |
344 |
< |
scalecolor(aval, d); /* neutral color */ |
344 |
> |
scalescolor(aval, d); /* neutral color */ |
345 |
|
} |
346 |
|
} |
347 |
|
|
394 |
|
|
395 |
|
static double |
396 |
|
sumambient( /* get interpolated ambient value */ |
397 |
< |
COLOR acol, |
397 |
> |
SCOLOR acol, |
398 |
|
RAY *r, |
399 |
|
FVECT rn, |
400 |
|
int al, |
427 |
|
at->kid+i, ck0, s); |
428 |
|
} |
429 |
|
/* good enough? */ |
430 |
< |
if (wsum >= 0.05 && s > minarad*10.0) |
430 |
> |
if ((wsum >= 0.05) & (s*ambacc > minarad)) |
431 |
|
return(wsum); |
432 |
|
} |
433 |
|
/* adjust maximum angle */ |
436 |
|
/* sum this node */ |
437 |
|
for (av = at->alist; av != NULL; av = av->next) { |
438 |
|
double u, v, d, delta_r2, delta_t2; |
439 |
< |
COLOR ct; |
439 |
> |
SCOLOR sct; |
440 |
|
FVECT uvw[3]; |
441 |
|
/* |
442 |
|
* Ambient level test |
459 |
|
*/ |
460 |
|
VSUB(ck0, r->rop, av->pos); |
461 |
|
d = DOT(ck0, uvw[2]); |
462 |
< |
if (d < -minarad*ambacc-.001) |
462 |
> |
if (d < -minarad*ambacc) |
463 |
|
continue; |
464 |
|
d /= av->rad[0]; |
465 |
|
delta_t2 = d*d; |
484 |
|
/* |
485 |
|
* Extrapolate value and compute final weight (hat function) |
486 |
|
*/ |
487 |
< |
if (!extambient(ct, av, r->rop, rn, uvw)) |
487 |
> |
if (!extambient(sct, av, r->rop, rn, uvw)) |
488 |
|
continue; |
489 |
|
d = tfunc(maxangle, sqrt(delta_r2), 0.0) * |
490 |
|
tfunc(ambacc, sqrt(delta_t2), 0.0); |
491 |
< |
scalecolor(ct, d); |
492 |
< |
addcolor(acol, ct); |
491 |
> |
scalescolor(sct, d); |
492 |
> |
saddscolor(acol, sct); |
493 |
|
wsum += d; |
494 |
|
} |
495 |
|
return(wsum); |
498 |
|
|
499 |
|
static int |
500 |
|
makeambient( /* make a new ambient value for storage */ |
501 |
< |
COLOR acol, |
501 |
> |
SCOLOR acol, |
502 |
|
RAY *r, |
503 |
|
FVECT rn, |
504 |
|
int al |
513 |
|
amb.weight *= AVGREFL; |
514 |
|
if (r->rweight < 0.1*amb.weight) /* heuristic override */ |
515 |
|
amb.weight = 1.25*r->rweight; |
516 |
< |
setcolor(acol, AVGREFL, AVGREFL, AVGREFL); |
516 |
> |
setscolor(acol, AVGREFL, AVGREFL, AVGREFL); |
517 |
|
/* compute ambient */ |
518 |
|
i = doambient(acol, r, amb.weight, |
519 |
|
uvw, amb.rad, amb.gpos, amb.gdir, &amb.corral); |
520 |
< |
scalecolor(acol, 1./AVGREFL); /* undo assumed reflectance */ |
520 |
> |
scalescolor(acol, 1./AVGREFL); /* undo assumed reflectance */ |
521 |
|
if (i <= 0 || amb.rad[0] <= FTINY) /* no Hessian or zero radius */ |
522 |
|
return(i); |
523 |
|
/* store value */ |
525 |
|
amb.ndir = encodedir(r->ron); |
526 |
|
amb.udir = encodedir(uvw[0]); |
527 |
|
amb.lvl = al; |
528 |
< |
copycolor(amb.val, acol); |
528 |
> |
copyscolor(amb.val, acol); |
529 |
|
/* insert into tree */ |
530 |
|
avsave(&amb); /* and save to file */ |
531 |
|
if (rn != r->ron) { /* texture */ |
538 |
|
|
539 |
|
static int |
540 |
|
extambient( /* extrapolate value at pv, nv */ |
541 |
< |
COLOR cr, |
541 |
> |
SCOLOR scr, |
542 |
|
AMBVAL *ap, |
543 |
|
FVECT pv, |
544 |
|
FVECT nv, |
570 |
|
d = min_d; |
571 |
|
else if (d > max_d) |
572 |
|
d = max_d; |
573 |
< |
copycolor(cr, ap->val); |
574 |
< |
scalecolor(cr, d); |
573 |
> |
copyscolor(scr, ap->val); |
574 |
> |
scalescolor(scr, d); |
575 |
|
return(d > min_d); |
576 |
|
} |
577 |
|
|
642 |
|
ambvwt, ambounce, ambacc); |
643 |
|
fprintf(ambfp, "-ad %d -as %d -ar %d ", |
644 |
|
ambdiv, ambssamp, ambres); |
645 |
+ |
fprintf(ambfp, "-dr %d -ds %g -dt %g -dc %g ", directrelay, |
646 |
+ |
srcsizerat, shadthresh, shadcert); |
647 |
+ |
fprintf(ambfp, "-ss %g -st %g -lr %d -lw %g ", specjitter, |
648 |
+ |
specthresh, maxdepth, minweight); |
649 |
+ |
fprintf(ambfp, "-cw %g %g -cs %d ", WLPART[3], WLPART[0], NCSAMP); |
650 |
|
if (octname != NULL) |
651 |
|
fputs(octname, ambfp); |
652 |
|
fputc('\n', ambfp); |
653 |
|
fprintf(ambfp, "SOFTWARE= %s\n", VersionID); |
654 |
|
fputnow(ambfp); |
655 |
+ |
fputwlsplit(WLPART, ambfp); |
656 |
+ |
fputncomp(NCSAMP, ambfp); |
657 |
|
fputformat(AMBFMT, ambfp); |
658 |
|
fputc('\n', ambfp); |
659 |
|
putambmagic(ambfp); |
660 |
< |
} else if (checkheader(ambfp, AMBFMT, NULL) < 0 || !hasambmagic(ambfp)) |
661 |
< |
error(USER, "bad ambient file"); |
660 |
> |
} else if (getheader(ambfp, amb_headline, NULL) < 0 || !hasambmagic(ambfp)) |
661 |
> |
error(USER, "bad/incompatible ambient file"); |
662 |
> |
|
663 |
> |
if ((AMB_CNDX != CNDX) | (AMB_WLPART != WLPART)) { |
664 |
> |
if (setspectrsamp(AMB_CNDX, AMB_WLPART) < 0) |
665 |
> |
error(USER, "bad wavelength sampling in ambient file"); |
666 |
> |
if (AMB_CNDX[3] == CNDX[3] && FABSEQ(AMB_WLPART[0],WLPART[0]) && |
667 |
> |
FABSEQ(AMB_WLPART[3],WLPART[3])) { |
668 |
> |
AMB_CNDX = CNDX; |
669 |
> |
AMB_WLPART = WLPART; /* just the same */ |
670 |
> |
} else |
671 |
> |
error(WARNING, "different ambient file wavelength sampling"); |
672 |
> |
} |
673 |
|
} |
674 |
|
|
675 |
|
|
702 |
|
|
703 |
|
if ((av = newambval()) == NULL) |
704 |
|
error(SYSTEM, "out of memory in avstore"); |
705 |
< |
*av = *aval; |
705 |
> |
memcpy(av, aval, AVSIZE); /* AVSIZE <= sizeof(AMBVAL) */ |
706 |
|
av->next = NULL; |
707 |
|
nambvals++; |
708 |
< |
d = bright(av->val); |
708 |
> |
d = pbright(av->val); |
709 |
|
if (d > FTINY) { /* add to log sum for averaging */ |
710 |
|
avsum += log(d); |
711 |
|
navsum++; |