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| 139 |
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static void setPhotonPortNormal (EmissionMap* emap) |
| 140 |
< |
/* Set normal for current photon port partition based on its orientation */ |
| 140 |
> |
/* Set normal for current photon port partition (if defined) based on its |
| 141 |
> |
* orientation */ |
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{ |
| 142 |
– |
/* Extract photon port orientation flags, set surface normal as follows: |
| 143 |
– |
-- Port oriented forwards --> flip surface normal to point |
| 144 |
– |
outwards, since normal points inwards per mkillum convention) |
| 145 |
– |
-- Port oriented backwards --> surface normal is NOT flipped, |
| 146 |
– |
since it already points inwards. |
| 147 |
– |
-- Port is bidirectionally/bilaterally oriented --> flip normal based |
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– |
on the parity of the current partition emap -> partitionCnt. |
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– |
In this case, photon emission alternates between port front/back |
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– |
faces for consecutive partitions. |
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– |
*/ |
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– |
int i, portFlags = PMAP_GETPORTFLAGS(emap -> port -> sflags); |
| 143 |
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|
| 144 |
< |
if ( |
| 145 |
< |
portFlags == PMAP_PORTFWD || |
| 146 |
< |
portFlags == PMAP_PORTBI && !(emap -> partitionCnt & 1) |
| 147 |
< |
) |
| 148 |
< |
for (i = 0; i < 3; i++) |
| 149 |
< |
emap -> ws [i] = -emap -> ws [i]; |
| 144 |
> |
int i, portFlags; |
| 145 |
> |
|
| 146 |
> |
if (emap -> port) { |
| 147 |
> |
/* Extract photon port orientation flags, set surface normal as follows: |
| 148 |
> |
-- Port oriented forwards --> flip surface normal to point outwards, |
| 149 |
> |
since normal points inwards per mkillum convention) |
| 150 |
> |
-- Port oriented backwards --> surface normal is NOT flipped, since |
| 151 |
> |
it already points inwards. |
| 152 |
> |
-- Port is bidirectionally/bilaterally oriented --> flip normal based |
| 153 |
> |
on the parity of the current partition emap -> partitionCnt. In |
| 154 |
> |
this case, photon emission alternates between port front/back |
| 155 |
> |
faces for consecutive partitions. |
| 156 |
> |
*/ |
| 157 |
> |
portFlags = PMAP_GETPORTFLAGS(emap -> port -> sflags); |
| 158 |
> |
|
| 159 |
> |
if ( |
| 160 |
> |
portFlags == PMAP_PORTFWD || |
| 161 |
> |
portFlags == PMAP_PORTBI && !(emap -> partitionCnt & 1) |
| 162 |
> |
) |
| 163 |
> |
for (i = 0; i < 3; i++) |
| 164 |
> |
emap -> ws [i] = -emap -> ws [i]; |
| 165 |
> |
} |
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} |
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