You will need to pitch the camera up.

Beau

Beau,

Imagine you sit with the aircraft in front of a large building and tilt the camera upwards. That will misalign previously vertical structures in it's position. So I'm afraid, just simply pitching the camera ups isn't good enough.

The horizon is where it in inside our 3D world. It can't be moved, but you can move the camera so that it spears higher or lower. If you raise the camera high enough, you can lower the horizon without tilting, but it would require a large offset to change the view angle since the horizon is so far away. Pitching the camera will make aligning view much more complex. You could also modify the horizon position by altering the vertical field of view but that would also distort your image. I would suggest playing with the position and orientation offset until you get something you like best. If what you want is the the same 3d scene, object orientation to the camera, etc, but with a lower horizon, that may simply not be possible.

Multi-channel gives you more options regarding the fov and frustum settings and will likely help you get closer to what you want, but you still won't be able to change the orientation of the horizon without also changing the orientation of all other objects in the world.

Quote from robert@hickcox.org on January 5, 2013, 20:35
I am exploring the same need. I am building a cockpit with separate displays for instruments, etc. So I would like to eliminate the interior from the main screen view, an move the horizon from the center (top to bottom) to the bottom of my main screen. I have commented out the interior, but have had little luck with moving the horizon lower. I am guessing that the viewing frustum definition adjustment would be the answer to this need. Is there any documentation of the viewing frustum definition?

This can be achieved in Multi-Channel (SimIG.xml) by utilising the 'ScreenCenterFromEye' parameter

jim