| 444 |
|
if (source[sp->sn].sflags & SSPOT && |
| 445 |
|
spotout(&sr, source[sp->sn].sl.s)) |
| 446 |
|
continue; /* outside spot */ |
| 447 |
< |
w = poly_area(ppoly, npv) * hres * vres; |
| 448 |
< |
if (w < .95) { /* subpixel source */ |
| 449 |
< |
rayorigin(&sr, NULL, SHADOW, 1.0); |
| 450 |
< |
sr.rsrc = sp->sn; |
| 451 |
< |
} else |
| 452 |
< |
rayorigin(&sr, NULL, PRIMARY, 1.0); |
| 447 |
> |
rayorigin(&sr, NULL, PRIMARY, 1.0); |
| 448 |
|
rayvalue(&sr); /* compute value */ |
| 449 |
|
if (bright(sr.rcol) <= FTINY) |
| 450 |
|
continue; /* missed/blocked */ |
| 451 |
|
/* modify pixel */ |
| 452 |
+ |
w = poly_area(ppoly, npv) * hres * vres; |
| 453 |
|
if (zbf[y-y0] != NULL && |
| 454 |
< |
sr.rt < 0.99*zbf[y-y0][x-x0]) |
| 454 |
> |
sr.rt < 0.99*zbf[y-y0][x-x0]) { |
| 455 |
|
zbf[y-y0][x-x0] = sr.rt; |
| 456 |
< |
else if (!bigdiff(sr.rcol, pic[y-y0][x-x0], |
| 457 |
< |
0.01)) /* source sample */ |
| 456 |
> |
} else if (!bigdiff(sr.rcol, pic[y-y0][x-x0], |
| 457 |
> |
0.01)) { /* source sample */ |
| 458 |
|
scalecolor(pic[y-y0][x-x0], w); |
| 459 |
< |
else { |
| 464 |
< |
scalecolor(sr.rcol, w); |
| 465 |
< |
scalecolor(pic[y-y0][x-x0], 1.-w); |
| 466 |
< |
addcolor(pic[y-y0][x-x0], sr.rcol); |
| 459 |
> |
continue; |
| 460 |
|
} |
| 461 |
+ |
scalecolor(sr.rcol, w); |
| 462 |
+ |
scalecolor(pic[y-y0][x-x0], 1.-w); |
| 463 |
+ |
addcolor(pic[y-y0][x-x0], sr.rcol); |
| 464 |
|
} |
| 465 |
|
} |
| 466 |
|
} |
