| 263 |
|
int sn; |
| 264 |
|
RREAL sp[MAXVERT][2]; |
| 265 |
|
{ |
| 266 |
< |
static char cubeord[8][6] = {{1,3,2,6,4,5},{0,4,5,7,3,2}, |
| 266 |
> |
static short cubeord[8][6] = {{1,3,2,6,4,5},{0,4,5,7,3,2}, |
| 267 |
|
{0,1,3,7,6,4},{0,1,5,7,6,2}, |
| 268 |
|
{0,2,6,7,5,1},{0,4,6,7,3,1}, |
| 269 |
|
{0,2,3,7,5,4},{1,5,4,6,2,3}}; |
| 285 |
|
for (j = 0; j < 4; j++) { /* four corners */ |
| 286 |
|
for (i = 0; i < 3; i++) { |
| 287 |
|
ap[i] = s->sloc[i]; |
| 288 |
< |
if (j==1|j==2) ap[i] += s->ss[SU][i]; |
| 288 |
> |
if ((j==1)|(j==2)) ap[i] += s->ss[SU][i]; |
| 289 |
|
else ap[i] -= s->ss[SU][i]; |
| 290 |
< |
if (j==2|j==3) ap[i] += s->ss[SV][i]; |
| 290 |
> |
if ((j==2)|(j==3)) ap[i] += s->ss[SV][i]; |
| 291 |
|
else ap[i] -= s->ss[SV][i]; |
| 292 |
|
if (s->sflags & SDISTANT) { |
| 293 |
|
ap[i] *= 1. + ourview.vfore; |
| 409 |
|
if (source[sp->sn].sflags & SSPOT && |
| 410 |
|
spotout(&sr, source[sp->sn].sl.s)) |
| 411 |
|
continue; /* outside spot */ |
| 412 |
< |
rayorigin(&sr, NULL, SHADOW, 1.0); |
| 413 |
< |
sr.rsrc = sp->sn; |
| 412 |
> |
w = poly_area(ppoly, npv) * hres * vres; |
| 413 |
> |
if (w < .95) { /* subpixel source */ |
| 414 |
> |
rayorigin(&sr, NULL, SHADOW, 1.0); |
| 415 |
> |
sr.rsrc = sp->sn; |
| 416 |
> |
} else |
| 417 |
> |
rayorigin(&sr, NULL, PRIMARY, 1.0); |
| 418 |
|
rayvalue(&sr); /* compute value */ |
| 419 |
|
if (bright(sr.rcol) <= FTINY) |
| 420 |
|
continue; /* missed/blocked */ |
| 421 |
|
/* modify pixel */ |
| 422 |
|
if (zbf[y-y0] != NULL && |
| 423 |
< |
sr.rt < 0.999*zbf[y-y0][x-x0]) |
| 423 |
> |
sr.rt < 0.99*zbf[y-y0][x-x0]) |
| 424 |
|
zbf[y-y0][x-x0] = sr.rt; |
| 425 |
|
else if (!bigdiff(sr.rcol, pic[y-y0][x-x0], |
| 426 |
< |
0.001)) /* source sample */ |
| 426 |
> |
0.01)) /* source sample */ |
| 427 |
|
setcolor(pic[y-y0][x-x0], 0., 0., 0.); |
| 424 |
– |
w = poly_area(ppoly, npv) * hres * vres; |
| 428 |
|
scalecolor(sr.rcol, w); |
| 429 |
|
scalecolor(pic[y-y0][x-x0], 1.-w); |
| 430 |
|
addcolor(pic[y-y0][x-x0], sr.rcol); |
