| 403 |
|
$kcal = ' |
| 404 |
|
DEGREE : PI/180; |
| 405 |
|
abs(x) : if(x, x, -x); |
| 406 |
< |
Acos(x) : 1/DEGREE * if(x-1, 0, if(-1-x, 0, acos(x))); |
| 406 |
> |
Acos(x) : if(x-1, 0, if(-1-x, PI, acos(x))) / DEGREE; |
| 407 |
|
posangle(a) : if(-a, a + 2*PI, a); |
| 408 |
< |
Atan2(y,x) : 1/DEGREE * posangle(atan2(y,x)); |
| 408 |
> |
Atan2(y,x) : posangle(atan2(y,x)) / DEGREE; |
| 409 |
|
kpola(r) : select(r, 5, 15, 25, 35, 45, 55, 65, 75, 90); |
| 410 |
|
knaz(r) : select(r, 1, 8, 16, 20, 24, 24, 24, 16, 12); |
| 411 |
|
kaccum(r) : if(r-.5, knaz(r) + kaccum(r-1), 0); |
| 584 |
|
<ScatteringDataType>BRDF</ScatteringDataType> |
| 585 |
|
<ScatteringData> |
| 586 |
|
'; |
| 587 |
< |
# Output front reflection (reciprocity averaging) |
| 587 |
> |
# Output front reflection (transposed order) |
| 588 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 589 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 590 |
< |
print .5*($rfarr[$ndiv*$id + $od] + $rfarr[$ndiv*$od + $id]), ",\n"; |
| 590 |
> |
print $rfarr[$ndiv*$id + $od], ",\n"; |
| 591 |
|
} |
| 592 |
|
print "\n"; |
| 593 |
|
} |
| 637 |
|
# Output back reflection (reciprocity averaging) |
| 638 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 639 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 640 |
< |
print .5*($rbarr[$ndiv*$id + $od] + $rbarr[$ndiv*$od + $id]), ",\n"; |
| 640 |
> |
print $rbarr[$ndiv*$id + $od], ",\n"; |
| 641 |
|
} |
| 642 |
|
print "\n"; |
| 643 |
|
} |
