Maybe I'm missing something but I'm pulling my hair out with the axis configuration for a lightrow. After a lot of fiddling (and reading the SDK) I've finally figured out that for some unknown reason the FS convention is XZ on the ground plane (instead of XY) and the Y axis is the vertical axis (instead of Z... why?)
Now I'm trying to orient my approach lights to be angled approximately 4.5 degrees up from horizontal, but for the life of me I cannot figure out what the rotation axes definitions are. I have tried everything, from 45 degree increments, flipping orientations by 180 degrees, but I cannot figure out how these axes are defined (specifically the rotational axes).
The convention I'm used to is X being left/right, Y being forward/backward, and Z being up/down. But even taking into account the interesting definition of axes in the SDK, where is 0/0/0 in direction even pointing? If I put in 0/0/90 my lightrow looks like this:
Makes sense so far. According to the SDK definition:
So now, you would assume if I set the Y to 180 and keep X 0 and Z at 90, the unidirectional light would face away from the camera. Nope:
What is going on here?! Am I really missing something? How is setting Y to 180 degrees not reversing the direction of these lights?