| 184 |
|
return(my_default(ob, il, nm)); |
| 185 |
|
} |
| 186 |
|
/* set up sampling */ |
| 187 |
– |
if (il->sampdens <= 0) { |
| 188 |
– |
nalt = nazi = 1; /* diffuse assumption */ |
| 189 |
– |
} else { |
| 190 |
– |
n = PI * il->sampdens; |
| 191 |
– |
nalt = sqrt(n/PI) + .5; |
| 192 |
– |
nazi = PI*nalt + .5; |
| 193 |
– |
} |
| 187 |
|
if (il->sd != NULL) { |
| 188 |
|
if (!getBSDF_xfm(xfm, fa->norm, il->udir)) { |
| 189 |
|
objerror(ob, WARNING, "illegal up direction"); |
| 191 |
|
return(my_default(ob, il, nm)); |
| 192 |
|
} |
| 193 |
|
n = il->sd->ninc; |
| 194 |
< |
} else |
| 194 |
> |
} else { |
| 195 |
> |
if (il->sampdens <= 0) { |
| 196 |
> |
nalt = nazi = 1; /* diffuse assumption */ |
| 197 |
> |
} else { |
| 198 |
> |
n = PI * il->sampdens; |
| 199 |
> |
nalt = sqrt(n/PI) + .5; |
| 200 |
> |
nazi = PI*nalt + .5; |
| 201 |
> |
} |
| 202 |
|
n = nazi*nalt; |
| 203 |
+ |
} |
| 204 |
|
newdist(n); |
| 205 |
|
/* take first edge >= sqrt(area) */ |
| 206 |
|
for (j = fa->nv-1, i = 0; i < fa->nv; j = i++) { |
| 271 |
|
raysamp(dim[1], org, dir); |
| 272 |
|
} |
| 273 |
|
rayclean(); |
| 274 |
< |
if (il->sd != NULL) /* run distribution through BSDF */ |
| 274 |
> |
if (il->sd != NULL) { /* run distribution through BSDF */ |
| 275 |
> |
nalt = sqrt(il->sd->nout/PI) + .5; |
| 276 |
> |
nazi = PI*nalt + .5; |
| 277 |
|
redistribute(il->sd, nalt, nazi, u, v, fa->norm, xfm); |
| 278 |
+ |
} |
| 279 |
|
/* write out the face and its distribution */ |
| 280 |
|
if (average(il, distarr, n)) { |
| 281 |
|
if (il->sampdens > 0) |
| 378 |
|
/* get/check arguments */ |
| 379 |
|
co = getcone(ob, 0); |
| 380 |
|
/* set up sampling */ |
| 377 |
– |
if (il->sampdens <= 0) |
| 378 |
– |
nalt = nazi = 1; |
| 379 |
– |
else { |
| 380 |
– |
n = PI * il->sampdens; |
| 381 |
– |
nalt = sqrt(n/PI) + .5; |
| 382 |
– |
nazi = PI*nalt + .5; |
| 383 |
– |
} |
| 381 |
|
if (il->sd != NULL) { |
| 382 |
|
if (!getBSDF_xfm(xfm, co->ad, il->udir)) { |
| 383 |
|
objerror(ob, WARNING, "illegal up direction"); |
| 385 |
|
return(my_default(ob, il, nm)); |
| 386 |
|
} |
| 387 |
|
n = il->sd->ninc; |
| 388 |
< |
} else |
| 388 |
> |
} else { |
| 389 |
> |
if (il->sampdens <= 0) { |
| 390 |
> |
nalt = nazi = 1; /* diffuse assumption */ |
| 391 |
> |
} else { |
| 392 |
> |
n = PI * il->sampdens; |
| 393 |
> |
nalt = sqrt(n/PI) + .5; |
| 394 |
> |
nazi = PI*nalt + .5; |
| 395 |
> |
} |
| 396 |
|
n = nazi*nalt; |
| 397 |
+ |
} |
| 398 |
|
newdist(n); |
| 399 |
|
mkaxes(u, v, co->ad); |
| 400 |
|
dim[0] = random(); |
| 433 |
|
raysamp(dim[1], org, dir); |
| 434 |
|
} |
| 435 |
|
rayclean(); |
| 436 |
< |
if (il->sd != NULL) /* run distribution through BSDF */ |
| 436 |
> |
if (il->sd != NULL) { /* run distribution through BSDF */ |
| 437 |
> |
nalt = sqrt(il->sd->nout/PI) + .5; |
| 438 |
> |
nazi = PI*nalt + .5; |
| 439 |
|
redistribute(il->sd, nalt, nazi, u, v, co->ad, xfm); |
| 440 |
+ |
} |
| 441 |
|
/* write out the ring and its distribution */ |
| 442 |
|
if (average(il, distarr, n)) { |
| 443 |
|
if (il->sampdens > 0) |