29 |
|
#define RC_INTERR (-4) |
30 |
|
#define RC_MEMERR (-5) |
31 |
|
|
32 |
< |
#define MAXLATS 46 /* maximum number of latitudes */ |
33 |
< |
|
34 |
< |
/* BSDF angle specification */ |
35 |
< |
typedef struct { |
36 |
< |
char name[64]; /* basis name */ |
37 |
< |
int nangles; /* total number of directions */ |
38 |
< |
struct { |
39 |
< |
float tmin; /* starting theta */ |
40 |
< |
int nphis; /* number of phis (0 term) */ |
41 |
< |
} lat[MAXLATS+1]; /* latitudes */ |
42 |
< |
} ANGLE_BASIS; |
43 |
< |
|
44 |
< |
#define MAXABASES 7 /* limit on defined bases */ |
45 |
< |
|
46 |
< |
static ANGLE_BASIS abase_list[MAXABASES] = { |
32 |
> |
ANGLE_BASIS abase_list[MAXABASES] = { |
33 |
|
{ |
34 |
|
"LBNL/Klems Full", 145, |
35 |
< |
{ {-5., 1}, |
35 |
> |
{ {0., 1}, |
36 |
|
{5., 8}, |
37 |
|
{15., 16}, |
38 |
|
{25., 20}, |
44 |
|
{90., 0} } |
45 |
|
}, { |
46 |
|
"LBNL/Klems Half", 73, |
47 |
< |
{ {-6.5, 1}, |
47 |
> |
{ {0., 1}, |
48 |
|
{6.5, 8}, |
49 |
|
{19.5, 12}, |
50 |
|
{32.5, 16}, |
54 |
|
{90., 0} } |
55 |
|
}, { |
56 |
|
"LBNL/Klems Quarter", 41, |
57 |
< |
{ {-9., 1}, |
57 |
> |
{ {0., 1}, |
58 |
|
{9., 8}, |
59 |
|
{27., 12}, |
60 |
|
{46., 12}, |
63 |
|
} |
64 |
|
}; |
65 |
|
|
66 |
< |
static int nabases = 3; /* current number of defined bases */ |
66 |
> |
int nabases = 3; /* current number of defined bases */ |
67 |
|
|
68 |
|
static int |
69 |
|
fequal(double a, double b) |
132 |
|
/* Free a BSDF matrix */ |
133 |
|
#define SDfreeMatrix free |
134 |
|
|
135 |
< |
/* get vector for this angle basis index (front exiting) */ |
136 |
< |
static int |
135 |
> |
/* Get vector for this angle basis index (front exiting) */ |
136 |
> |
int |
137 |
|
fo_getvec(FVECT v, double ndxr, void *p) |
138 |
|
{ |
139 |
|
ANGLE_BASIS *ab = (ANGLE_BASIS *)p; |
158 |
|
return RC_GOOD; |
159 |
|
} |
160 |
|
|
161 |
< |
/* get index corresponding to the given vector (front exiting) */ |
162 |
< |
static int |
161 |
> |
/* Get index corresponding to the given vector (front exiting) */ |
162 |
> |
int |
163 |
|
fo_getndx(const FVECT v, void *p) |
164 |
|
{ |
165 |
|
ANGLE_BASIS *ab = (ANGLE_BASIS *)p; |
170 |
|
return -1; |
171 |
|
if ((v[2] < 0) | (v[2] > 1.)) |
172 |
|
return -1; |
173 |
< |
pol = 180.0/M_PI*acos(v[2]); |
173 |
> |
pol = 180.0/M_PI*Acos(v[2]); |
174 |
|
azi = 180.0/M_PI*atan2(v[1], v[0]); |
175 |
|
if (azi < 0.0) azi += 360.0; |
176 |
|
for (li = 1; ab->lat[li].tmin <= pol; li++) |
187 |
|
/* compute square of real value */ |
188 |
|
static double sq(double x) { return x*x; } |
189 |
|
|
190 |
< |
/* get projected solid angle for this angle basis index (universal) */ |
191 |
< |
static double |
190 |
> |
/* Get projected solid angle for this angle basis index (universal) */ |
191 |
> |
double |
192 |
|
io_getohm(int ndx, void *p) |
193 |
|
{ |
194 |
|
static int last_li = -1; |
210 |
|
(double)ab->lat[li].nphis; |
211 |
|
} |
212 |
|
|
213 |
< |
/* get vector for this angle basis index (back incident) */ |
214 |
< |
static int |
213 |
> |
/* Get vector for this angle basis index (back incident) */ |
214 |
> |
int |
215 |
|
bi_getvec(FVECT v, double ndxr, void *p) |
216 |
|
{ |
217 |
|
if (!fo_getvec(v, ndxr, p)) |
224 |
|
return RC_GOOD; |
225 |
|
} |
226 |
|
|
227 |
< |
/* get index corresponding to the vector (back incident) */ |
228 |
< |
static int |
227 |
> |
/* Get index corresponding to the vector (back incident) */ |
228 |
> |
int |
229 |
|
bi_getndx(const FVECT v, void *p) |
230 |
|
{ |
231 |
|
FVECT v2; |
237 |
|
return fo_getndx(v2, p); |
238 |
|
} |
239 |
|
|
240 |
< |
/* get vector for this angle basis index (back exiting) */ |
241 |
< |
static int |
240 |
> |
/* Get vector for this angle basis index (back exiting) */ |
241 |
> |
int |
242 |
|
bo_getvec(FVECT v, double ndxr, void *p) |
243 |
|
{ |
244 |
|
if (!fo_getvec(v, ndxr, p)) |
249 |
|
return RC_GOOD; |
250 |
|
} |
251 |
|
|
252 |
< |
/* get index corresponding to the vector (back exiting) */ |
253 |
< |
static int |
252 |
> |
/* Get index corresponding to the vector (back exiting) */ |
253 |
> |
int |
254 |
|
bo_getndx(const FVECT v, void *p) |
255 |
|
{ |
256 |
|
FVECT v2; |
262 |
|
return fo_getndx(v2, p); |
263 |
|
} |
264 |
|
|
265 |
< |
/* get vector for this angle basis index (front incident) */ |
266 |
< |
static int |
265 |
> |
/* Get vector for this angle basis index (front incident) */ |
266 |
> |
int |
267 |
|
fi_getvec(FVECT v, double ndxr, void *p) |
268 |
|
{ |
269 |
|
if (!fo_getvec(v, ndxr, p)) |
275 |
|
return RC_GOOD; |
276 |
|
} |
277 |
|
|
278 |
< |
/* get index corresponding to the vector (front incident) */ |
279 |
< |
static int |
278 |
> |
/* Get index corresponding to the vector (front incident) */ |
279 |
> |
int |
280 |
|
fi_getndx(const FVECT v, void *p) |
281 |
|
{ |
282 |
|
FVECT v2; |
385 |
|
SDSpectralDF *df; |
386 |
|
SDMat *dp; |
387 |
|
char *sdata; |
402 |
– |
int tfront; |
388 |
|
int inbi, outbi; |
389 |
|
int i; |
390 |
|
/* allocate BSDF component */ |
393 |
|
return RC_FAIL; |
394 |
|
/* |
395 |
|
* Remember that front and back are reversed from WINDOW 6 orientations |
411 |
– |
* Favor their "Front" (incoming light) since that's more often valid |
396 |
|
*/ |
397 |
< |
tfront = !strcasecmp(sdata, "Transmission Back"); |
398 |
< |
if (!strcasecmp(sdata, "Transmission Front") || |
399 |
< |
tfront & (sd->tf == NULL)) { |
397 |
> |
if (!strcasecmp(sdata, "Transmission Front")) { |
398 |
> |
if (sd->tb != NULL) |
399 |
> |
SDfreeSpectralDF(sd->tb); |
400 |
> |
if ((sd->tb = SDnewSpectralDF(1)) == NULL) |
401 |
> |
return RC_MEMERR; |
402 |
> |
df = sd->tb; |
403 |
> |
} else if (!strcasecmp(sdata, "Transmission Back")) { |
404 |
|
if (sd->tf != NULL) |
405 |
|
SDfreeSpectralDF(sd->tf); |
406 |
|
if ((sd->tf = SDnewSpectralDF(1)) == NULL) |
407 |
|
return RC_MEMERR; |
408 |
|
df = sd->tf; |
409 |
|
} else if (!strcasecmp(sdata, "Reflection Front")) { |
410 |
< |
if (sd->rb != NULL) /* note back-front reversal */ |
410 |
> |
if (sd->rb != NULL) |
411 |
|
SDfreeSpectralDF(sd->rb); |
412 |
|
if ((sd->rb = SDnewSpectralDF(1)) == NULL) |
413 |
|
return RC_MEMERR; |
414 |
|
df = sd->rb; |
415 |
|
} else if (!strcasecmp(sdata, "Reflection Back")) { |
416 |
< |
if (sd->rf != NULL) /* note front-back reversal */ |
416 |
> |
if (sd->rf != NULL) |
417 |
|
SDfreeSpectralDF(sd->rf); |
418 |
|
if ((sd->rf = SDnewSpectralDF(1)) == NULL) |
419 |
|
return RC_MEMERR; |
455 |
|
dp->ib_priv = &abase_list[inbi]; |
456 |
|
dp->ob_priv = &abase_list[outbi]; |
457 |
|
if (df == sd->tf) { |
458 |
< |
if (tfront) { |
459 |
< |
dp->ib_vec = &fi_getvec; |
460 |
< |
dp->ib_ndx = &fi_getndx; |
461 |
< |
dp->ob_vec = &bo_getvec; |
462 |
< |
dp->ob_ndx = &bo_getndx; |
463 |
< |
} else { |
464 |
< |
dp->ib_vec = &bi_getvec; |
465 |
< |
dp->ib_ndx = &bi_getndx; |
466 |
< |
dp->ob_vec = &fo_getvec; |
479 |
< |
dp->ob_ndx = &fo_getndx; |
480 |
< |
} |
458 |
> |
dp->ib_vec = &fi_getvec; |
459 |
> |
dp->ib_ndx = &fi_getndx; |
460 |
> |
dp->ob_vec = &bo_getvec; |
461 |
> |
dp->ob_ndx = &bo_getndx; |
462 |
> |
} else if (df == sd->tb) { |
463 |
> |
dp->ib_vec = &bi_getvec; |
464 |
> |
dp->ib_ndx = &bi_getndx; |
465 |
> |
dp->ob_vec = &fo_getvec; |
466 |
> |
dp->ob_ndx = &fo_getndx; |
467 |
|
} else if (df == sd->rf) { |
468 |
|
dp->ib_vec = &fi_getvec; |
469 |
|
dp->ib_ndx = &fi_getndx; |
602 |
|
/* separate diffuse components */ |
603 |
|
extract_diffuse(&sd->rLambFront, sd->rf); |
604 |
|
extract_diffuse(&sd->rLambBack, sd->rb); |
605 |
< |
extract_diffuse(&sd->tLamb, sd->tf); |
605 |
> |
if (sd->tf != NULL) |
606 |
> |
extract_diffuse(&sd->tLamb, sd->tf); |
607 |
> |
if (sd->tb != NULL) |
608 |
> |
extract_diffuse(&sd->tLamb, sd->tb); |
609 |
|
/* return success */ |
610 |
|
return SDEnone; |
611 |
|
} |