| 27 |
|
short nt, np; /* number of theta and phi directions */ |
| 28 |
|
} AMBHEMI; /* ambient sample hemisphere */ |
| 29 |
|
|
| 30 |
– |
extern double sin(), cos(), sqrt(); |
| 30 |
|
|
| 32 |
– |
|
| 31 |
|
static int |
| 32 |
|
ambcmp(d1, d2) /* decreasing order */ |
| 33 |
|
AMBSAMP *d1, *d2; |
| 146 |
|
arad += dp->r; |
| 147 |
|
} |
| 148 |
|
} |
| 149 |
< |
if (ns > 0) { /* perform super-sampling */ |
| 149 |
> |
if (ns > 0 && arad > FTINY && ndivs/arad < minarad) |
| 150 |
> |
ns = 0; /* close enough */ |
| 151 |
> |
else if (ns > 0) { /* else perform super-sampling */ |
| 152 |
|
comperrs(div, &hemi); /* compute errors */ |
| 153 |
|
qsort(div, ndivs, sizeof(AMBSAMP), ambcmp); /* sort divs */ |
| 154 |
|
/* super-sample */ |
| 207 |
|
scalecolor(acol, b); |
| 208 |
|
if (arad <= FTINY) |
| 209 |
|
arad = maxarad; |
| 210 |
< |
else { |
| 210 |
> |
else |
| 211 |
|
arad = (ndivs+ns)/arad; |
| 212 |
– |
if (arad > maxarad) |
| 213 |
– |
arad = maxarad; |
| 214 |
– |
} |
| 212 |
|
if (pg != NULL) { /* reduce radius if gradient large */ |
| 213 |
|
d = DOT(pg,pg); |
| 214 |
|
if (d*arad*arad > 1.0) |
| 222 |
|
pg[i] *= d; |
| 223 |
|
} |
| 224 |
|
} |
| 225 |
< |
return(arad/sqrt(wt)); |
| 225 |
> |
if ((arad /= sqrt(wt)) > maxarad) |
| 226 |
> |
arad = maxarad; |
| 227 |
> |
return(arad); |
| 228 |
|
oopsy: |
| 229 |
|
if (div != NULL) |
| 230 |
|
free((char *)div); |
