157 |
|
/* Free a BSDF matrix */ |
158 |
|
#define SDfreeMatrix free |
159 |
|
|
160 |
< |
/* get vector for this angle basis index */ |
160 |
> |
/* get vector for this angle basis index (front exiting) */ |
161 |
|
static int |
162 |
< |
ab_getvec(FVECT v, int ndx, double randX, void *p) |
162 |
> |
fo_getvec(FVECT v, int ndx, double randX, void *p) |
163 |
|
{ |
164 |
|
ANGLE_BASIS *ab = (ANGLE_BASIS *)p; |
165 |
|
double rx[2]; |
181 |
|
return RC_GOOD; |
182 |
|
} |
183 |
|
|
184 |
< |
/* get index corresponding to the given vector */ |
184 |
> |
/* get index corresponding to the given vector (front exiting) */ |
185 |
|
static int |
186 |
< |
ab_getndx(const FVECT v, void *p) |
186 |
> |
fo_getndx(const FVECT v, void *p) |
187 |
|
{ |
188 |
|
ANGLE_BASIS *ab = (ANGLE_BASIS *)p; |
189 |
|
int li, ndx; |
210 |
|
/* compute square of real value */ |
211 |
|
static double sq(double x) { return x*x; } |
212 |
|
|
213 |
< |
/* get projected solid angle for this angle basis index */ |
213 |
> |
/* get projected solid angle for this angle basis index (universal) */ |
214 |
|
static double |
215 |
< |
ab_getohm(int ndx, void *p) |
215 |
> |
io_getohm(int ndx, void *p) |
216 |
|
{ |
217 |
|
static int last_li = -1; |
218 |
|
static double last_ohm; |
235 |
|
(double)ab->lat[li].nphis; |
236 |
|
} |
237 |
|
|
238 |
< |
/* get reverse vector for this angle basis index */ |
238 |
> |
/* get vector for this angle basis index (back incident) */ |
239 |
|
static int |
240 |
< |
ab_getvecR(FVECT v, int ndx, double randX, void *p) |
240 |
> |
bi_getvec(FVECT v, int ndx, double randX, void *p) |
241 |
|
{ |
242 |
< |
int na = (*(ANGLE_BASIS *)p).nangles; |
243 |
< |
|
244 |
< |
if (!ab_getvec(v, ndx, randX, p)) |
242 |
> |
if (!fo_getvec(v, ndx, randX, p)) |
243 |
|
return RC_FAIL; |
244 |
|
|
245 |
|
v[0] = -v[0]; |
249 |
|
return RC_GOOD; |
250 |
|
} |
251 |
|
|
252 |
< |
/* get index corresponding to the reverse vector */ |
252 |
> |
/* get index corresponding to the vector (back incident) */ |
253 |
|
static int |
254 |
< |
ab_getndxR(const FVECT v, void *p) |
254 |
> |
bi_getndx(const FVECT v, void *p) |
255 |
|
{ |
256 |
|
FVECT v2; |
257 |
|
|
259 |
|
v2[1] = -v[1]; |
260 |
|
v2[2] = -v[2]; |
261 |
|
|
262 |
< |
return ab_getndx(v2, p); |
262 |
> |
return fo_getndx(v2, p); |
263 |
|
} |
264 |
|
|
265 |
+ |
/* get vector for this angle basis index (back exiting) */ |
266 |
+ |
static int |
267 |
+ |
bo_getvec(FVECT v, int ndx, double randX, void *p) |
268 |
+ |
{ |
269 |
+ |
if (!fo_getvec(v, ndx, randX, p)) |
270 |
+ |
return RC_FAIL; |
271 |
+ |
|
272 |
+ |
v[2] = -v[2]; |
273 |
+ |
|
274 |
+ |
return RC_GOOD; |
275 |
+ |
} |
276 |
+ |
|
277 |
+ |
/* get index corresponding to the vector (back exiting) */ |
278 |
+ |
static int |
279 |
+ |
bo_getndx(const FVECT v, void *p) |
280 |
+ |
{ |
281 |
+ |
FVECT v2; |
282 |
+ |
|
283 |
+ |
v2[0] = v[0]; |
284 |
+ |
v2[1] = v[1]; |
285 |
+ |
v2[2] = -v[2]; |
286 |
+ |
|
287 |
+ |
return fo_getndx(v2, p); |
288 |
+ |
} |
289 |
+ |
|
290 |
+ |
/* get vector for this angle basis index (front incident) */ |
291 |
+ |
static int |
292 |
+ |
fi_getvec(FVECT v, int ndx, double randX, void *p) |
293 |
+ |
{ |
294 |
+ |
if (!fo_getvec(v, ndx, randX, p)) |
295 |
+ |
return RC_FAIL; |
296 |
+ |
|
297 |
+ |
v[0] = -v[0]; |
298 |
+ |
v[1] = -v[1]; |
299 |
+ |
|
300 |
+ |
return RC_GOOD; |
301 |
+ |
} |
302 |
+ |
|
303 |
+ |
/* get index corresponding to the vector (front incident) */ |
304 |
+ |
static int |
305 |
+ |
fi_getndx(const FVECT v, void *p) |
306 |
+ |
{ |
307 |
+ |
FVECT v2; |
308 |
+ |
|
309 |
+ |
v2[0] = -v[0]; |
310 |
+ |
v2[1] = -v[1]; |
311 |
+ |
v2[2] = v[2]; |
312 |
+ |
|
313 |
+ |
return fo_getndx(v2, p); |
314 |
+ |
} |
315 |
+ |
|
316 |
|
/* load custom BSDF angle basis */ |
317 |
|
static int |
318 |
|
load_angle_basis(ezxml_t wab) |
411 |
|
SDSpectralDF *df; |
412 |
|
SDMat *dp; |
413 |
|
char *sdata; |
414 |
< |
int tback; |
414 |
> |
int tfront; |
415 |
|
int inbi, outbi; |
416 |
|
int i; |
417 |
|
/* allocate BSDF component */ |
418 |
|
sdata = ezxml_txt(ezxml_child(wdb, "WavelengthDataDirection")); |
419 |
< |
if ((tback = !strcasecmp(sdata, "Transmission Back")) || |
419 |
> |
/* |
420 |
> |
* Remember that front and back are reversed from WINDOW 6 orientations |
421 |
> |
*/ |
422 |
> |
if ((tfront = !strcasecmp(sdata, "Transmission Back")) || |
423 |
|
(sd->tf == NULL && |
424 |
|
!strcasecmp(sdata, "Transmission Front"))) { |
425 |
|
if (sd->tf != NULL) |
476 |
|
dp->ib_priv = &abase_list[inbi]; |
477 |
|
dp->ob_priv = &abase_list[outbi]; |
478 |
|
if (df == sd->tf) { |
479 |
< |
if (tback) { |
480 |
< |
dp->ib_vec = &ab_getvecR; |
481 |
< |
dp->ib_ndx = &ab_getndxR; |
482 |
< |
dp->ob_vec = &ab_getvec; |
483 |
< |
dp->ob_ndx = &ab_getndx; |
479 |
> |
if (tfront) { |
480 |
> |
dp->ib_vec = &fi_getvec; |
481 |
> |
dp->ib_ndx = &fi_getndx; |
482 |
> |
dp->ob_vec = &bo_getvec; |
483 |
> |
dp->ob_ndx = &bo_getndx; |
484 |
|
} else { |
485 |
< |
dp->ib_vec = &ab_getvec; |
486 |
< |
dp->ib_ndx = &ab_getndx; |
487 |
< |
dp->ob_vec = &ab_getvecR; |
488 |
< |
dp->ob_ndx = &ab_getndxR; |
485 |
> |
dp->ib_vec = &bi_getvec; |
486 |
> |
dp->ib_ndx = &bi_getndx; |
487 |
> |
dp->ob_vec = &fo_getvec; |
488 |
> |
dp->ob_ndx = &fo_getndx; |
489 |
|
} |
490 |
|
} else if (df == sd->rf) { |
491 |
< |
dp->ib_vec = &ab_getvec; |
492 |
< |
dp->ib_ndx = &ab_getndx; |
493 |
< |
dp->ob_vec = &ab_getvec; |
494 |
< |
dp->ob_ndx = &ab_getndx; |
491 |
> |
dp->ib_vec = &fi_getvec; |
492 |
> |
dp->ib_ndx = &fi_getndx; |
493 |
> |
dp->ob_vec = &fo_getvec; |
494 |
> |
dp->ob_ndx = &fo_getndx; |
495 |
|
} else /* df == sd->rb */ { |
496 |
< |
dp->ib_vec = &ab_getvecR; |
497 |
< |
dp->ib_ndx = &ab_getndxR; |
498 |
< |
dp->ob_vec = &ab_getvecR; |
499 |
< |
dp->ob_ndx = &ab_getndxR; |
496 |
> |
dp->ib_vec = &bi_getvec; |
497 |
> |
dp->ib_ndx = &bi_getndx; |
498 |
> |
dp->ob_vec = &bo_getvec; |
499 |
> |
dp->ob_ndx = &bo_getndx; |
500 |
|
} |
501 |
< |
dp->ib_ohm = &ab_getohm; |
502 |
< |
dp->ob_ohm = &ab_getohm; |
501 |
> |
dp->ib_ohm = &io_getohm; |
502 |
> |
dp->ob_ohm = &io_getohm; |
503 |
|
df->comp[0].cspec[0] = c_dfcolor; /* XXX monochrome for now */ |
504 |
|
df->comp[0].dist = dp; |
505 |
|
df->comp[0].func = &SDhandleMtx; |