| 148 |
|
surface therefore does not affect the light transport and simply acts as an |
| 149 |
|
invisible photon receiver. This is useful when photon irradiance is to be |
| 150 |
|
evaluated at points which do not lie on regular geometry, e.g. at workplane |
| 151 |
< |
height with \firtrace\fR's \fB-I\fR option. Without this workaround, |
| 151 |
> |
height with \fIrtrace\fR's \fB-I\fR option. Without this workaround, |
| 152 |
|
photons would be collected from parallel but distant planes, leading to |
| 153 |
|
underestimation. Note that photons are only deposited when incident from |
| 154 |
|
the front side of the sensor surface, i.e. when entering the |
