| 61 |
|
|
| 62 |
|
static int nabases = 3; /* current number of defined bases */ |
| 63 |
|
|
| 64 |
< |
#define FEQ(a,b) ((a)-(b) <= 1e-7 && (b)-(a) <= 1e-7) |
| 64 |
> |
#define FEQ(a,b) ((a)-(b) <= 1e-6 && (b)-(a) <= 1e-6) |
| 65 |
|
|
| 66 |
+ |
static int |
| 67 |
+ |
fequal(double a, double b) |
| 68 |
+ |
{ |
| 69 |
+ |
if (b != .0) |
| 70 |
+ |
a = a/b - 1.; |
| 71 |
+ |
return((a <= 1e-6) & (a >= -1e-6)); |
| 72 |
+ |
} |
| 73 |
+ |
|
| 74 |
|
// returns the name of the given tag |
| 75 |
|
#ifdef ezxml_name |
| 76 |
|
#undef ezxml_name |
| 235 |
|
if (!i) |
| 236 |
|
abase_list[nabases].lat[i].tmin = |
| 237 |
|
-abase_list[nabases].lat[i+1].tmin; |
| 238 |
< |
else if (!FEQ(atof(ezxml_txt(ezxml_child(ezxml_child(wbb, |
| 238 |
> |
else if (!fequal(atof(ezxml_txt(ezxml_child(ezxml_child(wbb, |
| 239 |
|
"ThetaBounds"), "LowerTheta"))), |
| 240 |
|
abase_list[nabases].lat[i].tmin)) |
| 241 |
|
error(WARNING, "theta values disagree in custom basis"); |
| 257 |
|
if (!strcasecmp(unit, "Foot")) return(.3048); |
| 258 |
|
if (!strcasecmp(unit, "Inch")) return(.0254); |
| 259 |
|
if (!strcasecmp(unit, "Centimeter")) return(.01); |
| 260 |
+ |
if (!strcasecmp(unit, "Millimeter")) return(.001); |
| 261 |
|
sprintf(errmsg, "unknown dimensional unit '%s'", unit); |
| 262 |
|
error(USER, errmsg); |
| 263 |
|
} |
| 385 |
|
) |
| 386 |
|
{ |
| 387 |
|
double *omega_iarr, *omega_oarr; |
| 388 |
< |
double dom, contrib, hemi_total; |
| 388 |
> |
double dom, contrib, hemi_total, full_total; |
| 389 |
|
int nneg; |
| 390 |
|
FVECT v; |
| 391 |
|
int i, o; |
| 454 |
|
BSDF_value(dp,i,o) = .0f; |
| 455 |
|
} |
| 456 |
|
} |
| 457 |
< |
if (hemi_total > 1.02) { |
| 457 |
> |
if (hemi_total > 1.01) { |
| 458 |
|
sprintf(errmsg, |
| 459 |
|
"incoming BSDF direction %d passes %.1f%% of light", |
| 460 |
|
i, 100.*hemi_total); |
| 465 |
|
sprintf(errmsg, "%d negative BSDF values (ignored)", nneg); |
| 466 |
|
error(WARNING, errmsg); |
| 467 |
|
} |
| 468 |
< |
/* reverse roles and check again */ |
| 468 |
> |
full_total = .0; /* reverse roles and check again */ |
| 469 |
|
for (o = 0; o < dp->nout; o++) { |
| 470 |
|
hemi_total = .0; |
| 471 |
|
for (i = dp->ninc; i--; ) |
| 472 |
|
hemi_total += BSDF_value(dp,i,o) * omega_iarr[i]; |
| 473 |
|
|
| 474 |
< |
if (hemi_total > 1.02) { |
| 474 |
> |
if (hemi_total > 1.01) { |
| 475 |
|
sprintf(errmsg, |
| 476 |
|
"outgoing BSDF direction %d collects %.1f%% of light", |
| 477 |
|
o, 100.*hemi_total); |
| 478 |
|
error(WARNING, errmsg); |
| 479 |
|
} |
| 480 |
+ |
full_total += hemi_total*omega_oarr[o]; |
| 481 |
|
} |
| 482 |
+ |
full_total /= PI; |
| 483 |
+ |
if (full_total > 1.00001) { |
| 484 |
+ |
sprintf(errmsg, "BSDF transfers %.4f%% of light", |
| 485 |
+ |
100.*full_total); |
| 486 |
+ |
error(WARNING, errmsg); |
| 487 |
+ |
} |
| 488 |
|
free(omega_iarr); free(omega_oarr); |
| 489 |
|
return(1); |
| 490 |
|
} |
| 526 |
|
return(NULL); |
| 527 |
|
} |
| 528 |
|
wtl = ezxml_child(ezxml_child(fl, "Optical"), "Layer"); |
| 529 |
+ |
if (strcasecmp(ezxml_txt(ezxml_child(ezxml_child(wtl, |
| 530 |
+ |
"DataDefinition"), "IncidentDataStructure")), |
| 531 |
+ |
"Columns")) { |
| 532 |
+ |
sprintf(errmsg, |
| 533 |
+ |
"BSDF \"%s\": unsupported IncidentDataStructure", |
| 534 |
+ |
path); |
| 535 |
+ |
error(WARNING, errmsg); |
| 536 |
+ |
ezxml_free(fl); |
| 537 |
+ |
return(NULL); |
| 538 |
+ |
} |
| 539 |
|
load_angle_basis(ezxml_child(ezxml_child(wtl, |
| 540 |
|
"DataDefinition"), "AngleBasis")); |
| 541 |
|
dp = (struct BSDF_data *)calloc(1, sizeof(struct BSDF_data)); |