| 199 |
|
if (source[sn].sflags & SFLAT) { /* behind source? */ |
| 200 |
|
multv3(nsnorm, source[sn].snorm, pm); |
| 201 |
|
normalize(nsnorm); |
| 202 |
< |
if (!checkspot(&ourspot, nsnorm)) |
| 202 |
> |
if (nsflags & SSPOT && !checkspot(&ourspot, nsnorm)) |
| 203 |
|
return(-1); |
| 204 |
|
} |
| 205 |
|
} |
| 291 |
|
} else { |
| 292 |
|
for (i = 0; i < 3; i++) |
| 293 |
|
offsdir[i] = source[sn].sloc[i] - oc[i]; |
| 294 |
< |
n = or2/DOT(offsdir,offsdir)*vspretest + .5; |
| 294 |
> |
d = DOT(offsdir,offsdir); |
| 295 |
> |
if (d <= FTINY) |
| 296 |
> |
n = 2.*PI * vspretest + .5; |
| 297 |
> |
else |
| 298 |
> |
n = 2.*PI * (1.-sqrt(1./(1.+or2/d)))*vspretest + .5; |
| 299 |
|
infront = DOT(onorm, offsdir) > 0.; |
| 300 |
|
} |
| 301 |
|
if (n < MINSAMPLES) n = MINSAMPLES; |
