| 202 |
|
{ |
| 203 |
|
miga[0] = miga[1] = miga[2] = NULL; |
| 204 |
|
if (single_plane_incident) { /* isotropic BSDF? */ |
| 205 |
< |
RBFNODE *rbf; /* find edge we're on */ |
| 206 |
< |
for (rbf = dsf_list; rbf != NULL; rbf = rbf->next) { |
| 207 |
< |
if (input_orient*rbf->invec[2] < input_orient*invec[2]) |
| 208 |
< |
break; |
| 209 |
< |
if (rbf->next != NULL && |
| 210 |
< |
input_orient*rbf->next->invec[2] < |
| 205 |
> |
RBFNODE *rbf; /* find edge we're on */ |
| 206 |
> |
for (rbf = dsf_list; rbf != NULL; rbf = rbf->next) { |
| 207 |
> |
if (input_orient*rbf->invec[2] < input_orient*invec[2]) |
| 208 |
> |
break; |
| 209 |
> |
if (rbf->next != NULL && input_orient*rbf->next->invec[2] < |
| 210 |
|
input_orient*invec[2]) { |
| 211 |
< |
for (miga[0] = rbf->ejl; miga[0] != NULL; |
| 212 |
< |
miga[0] = nextedge(rbf,miga[0])) |
| 213 |
< |
if (opp_rbf(rbf,miga[0]) == rbf->next) { |
| 214 |
< |
double nf = 1.-rbf->invec[2]*rbf->invec[2]; |
| 215 |
< |
if (nf > FTINY) { |
| 216 |
< |
nf = sqrt((1.-invec[2]*invec[2])/nf); |
| 217 |
< |
invec[0] = nf*rbf->invec[0]; |
| 218 |
< |
invec[1] = nf*rbf->invec[1]; |
| 219 |
< |
} |
| 220 |
< |
return(0); |
| 222 |
< |
} |
| 223 |
< |
break; |
| 211 |
> |
for (miga[0] = rbf->ejl; miga[0] != NULL; |
| 212 |
> |
miga[0] = nextedge(rbf,miga[0])) |
| 213 |
> |
if (opp_rbf(rbf,miga[0]) == rbf->next) { |
| 214 |
> |
double nf = 1. - rbf->invec[2]*rbf->invec[2]; |
| 215 |
> |
if (nf > FTINY) { /* rotate to match */ |
| 216 |
> |
nf = sqrt((1.-invec[2]*invec[2])/nf); |
| 217 |
> |
invec[0] = nf*rbf->invec[0]; |
| 218 |
> |
invec[1] = nf*rbf->invec[1]; |
| 219 |
> |
} |
| 220 |
> |
return(0); |
| 221 |
|
} |
| 222 |
+ |
break; |
| 223 |
|
} |
| 224 |
< |
return(-1); /* outside range! */ |
| 224 |
> |
} |
| 225 |
> |
return(-1); /* outside range! */ |
| 226 |
|
} |
| 227 |
|
{ /* else use triangle mesh */ |
| 228 |
|
int sym = use_symmetry(invec); |
