I created a camera according to my 3DS Max's camera. Set the position and target of it and placed a model into the scene.
My cam has a vertical FOV of 30 degrees.
if I'm not mistaken, i should calculate 30 degrees to radiants like this:
30*0,01745 = 0,5235
This would give a FOV of about 0,5. But the model isn't where it should be. I mean, it is at the correct position in coord space, but it is placed somewhere else on the screen.
If this is true, then there is something wrong. Why?
If set the FOV to 2.15 I get the correct result.
2.15 * 57,29577 = 123,18
Strange...
So, my question is, how to calculate the correct FOV values according to 3DS MAx's camera FOVs?