| 311 |
|
/* compute image polygon for source */ |
| 312 |
|
if (!(nsv = sourcepoly(vw, sn, spoly))) |
| 313 |
|
continue; |
| 314 |
+ |
/* big enough for standard sampling? */ |
| 315 |
+ |
if (minw2(spoly, nsv, vw->vn2/vw->hn2) > (double)rad*rad/xr/xr) |
| 316 |
+ |
continue; |
| 317 |
|
/* clip source poly to subimage */ |
| 318 |
|
nsv = box_clip_poly(spoly, nsv, |
| 319 |
|
(double)x0/xr, (double)(x0+xsiz)/xr, |
| 320 |
|
(double)y0/yr, (double)(y0+ysiz)/yr, spoly); |
| 321 |
|
if (!nsv) |
| 322 |
|
continue; |
| 320 |
– |
/* is it big so sampling found it? */ |
| 321 |
– |
if (minw2(spoly, nsv, vw->vn2/vw->hn2) > (double)rad*rad/xr/xr) |
| 322 |
– |
continue; |
| 323 |
|
/* find common subimage (BBox) */ |
| 324 |
|
xmin = x0 + xsiz; xmax = x0; |
| 325 |
|
ymin = y0 + ysiz; ymax = y0; |
| 347 |
|
cxy[0], cxy[1])) < -FTINY) |
| 348 |
|
continue; /* not in view */ |
| 349 |
|
if (source[sn].sflags & SSPOT && |
| 350 |
< |
spotout(sr, source[sn].sl.s)) |
| 350 |
> |
spotout(&sr, source[sn].sl.s)) |
| 351 |
|
continue; /* outside spot */ |
| 352 |
|
rayorigin(&sr, NULL, SHADOW, 1.0); |
| 353 |
|
sr.rsrc = sn; |
