| 254 |
|
double or, d; |
| 255 |
|
int infront; |
| 256 |
|
int ssn; |
| 257 |
< |
int nhit; |
| 257 |
> |
int nhit, nok; |
| 258 |
|
register int i, n; |
| 259 |
|
/* return if pretesting disabled */ |
| 260 |
|
if (vspretest <= 0) |
| 280 |
|
/* sample */ |
| 281 |
|
or = sqrt(or2); |
| 282 |
|
ssn = 25*n; |
| 283 |
< |
nhit = 0; |
| 283 |
> |
nhit = nok = 0; |
| 284 |
|
while (n-- > 0) { |
| 285 |
|
/* get sample point */ |
| 286 |
|
do { |
| 316 |
|
rayvalue(&sr); |
| 317 |
|
if (bright(sr.rcol) <= FTINY) |
| 318 |
|
continue; |
| 319 |
+ |
nok++; |
| 320 |
|
/* check against obstructions */ |
| 321 |
|
srcray(&sr, NULL, sn); |
| 322 |
|
rayvalue(&sr); |
| 323 |
< |
if (bright(sr.rcol) <= FTINY) { |
| 324 |
< |
if (nhit > 0) { |
| 323 |
> |
if (bright(sr.rcol) > FTINY) |
| 324 |
> |
nhit++; |
| 325 |
> |
if (nhit > 0 && nhit < nok) { |
| 326 |
|
#ifdef DEBUG |
| 327 |
< |
fprintf(stderr, "\tpartially occluded\n"); |
| 327 |
> |
fprintf(stderr, "\tpartially occluded\n"); |
| 328 |
|
#endif |
| 329 |
< |
return(f); /* need to shadow test */ |
| 330 |
< |
} |
| 329 |
< |
} else |
| 330 |
< |
nhit++; |
| 329 |
> |
return(f); /* need to shadow test */ |
| 330 |
> |
} |
| 331 |
|
} |
| 332 |
|
if (nhit == 0) { |
| 333 |
|
#ifdef DEBUG |
