Nice tutorial.
The away3d library has some handy tools when it comes to skybox creation.
But, I was facing a little problem the other day.
I’m developing a web simulator based on a previous simulator called TFX (90′s).
The skybox effect I’m seeking is this one:

http://www.abandonia.com/files/games/752/Tactical%20Fighter%20eXperiment%20(aka%20TFX)_3.png

But, if I render a box with the six faces according to the above horizon I’ll get a distortion right next to the right and left sides of my stage.
In other words, my horizon should look horizontal, but it distorts because the skybox is mapped into a box and the away3d camera distorts the face’s content.

Do you have any idea how to maybe change the camera or the skybox to make something that looks like the sky in the old simulator screen from the link?

Thank you so much!

Gustavo