| 149 |
|
h[0] = ldir[0] - np->prdir[0]; |
| 150 |
|
h[1] = ldir[1] - np->prdir[1]; |
| 151 |
|
h[2] = ldir[2] - np->prdir[2]; |
| 152 |
< |
dtmp = DOT(h,np->pnorm); |
| 153 |
< |
dtmp = DOT(h,h) - dtmp*dtmp; |
| 152 |
> |
dtmp = DOT(h,h); |
| 153 |
|
if (dtmp > FTINY*FTINY) { |
| 154 |
< |
dtmp1 = DOT(h,np->u); |
| 155 |
< |
dtmp1 = dtmp1*dtmp1 / (au2*dtmp); |
| 156 |
< |
dtmp2 = DOT(h,np->v); |
| 157 |
< |
dtmp2 = dtmp2*dtmp2 / (av2*dtmp); |
| 158 |
< |
dtmp = 2. - 2.*DOT(ldir,np->prdir); |
| 159 |
< |
dtmp *= dtmp1 + dtmp2; |
| 154 |
> |
dtmp1 = DOT(h,np->pnorm); |
| 155 |
> |
dtmp = 1.0 - dtmp1*dtmp1/dtmp; |
| 156 |
> |
if (dtmp > FTINY*FTINY) { |
| 157 |
> |
dtmp1 = DOT(h,np->u); |
| 158 |
> |
dtmp1 = dtmp1*dtmp1 / au2; |
| 159 |
> |
dtmp2 = DOT(h,np->v); |
| 160 |
> |
dtmp2 = dtmp2*dtmp2 / av2; |
| 161 |
> |
dtmp = (dtmp1 + dtmp2) / dtmp; |
| 162 |
> |
} |
| 163 |
|
} else |
| 164 |
|
dtmp = 0.0; |
| 165 |
|
/* gaussian */ |