In this tutorial I will explain how quickly and easily convert spherical panoramas into cubic ones which can be used in AM via the Cubic Panorama plugin. There are multiple ways to achieve this. But for now I will just list the first method. First, create a spherical panorama rendered in whatever program you prefer. In this case I used sweet home 3d, which can be seen here: LINK
Next, download and extract this zip archive. Open "Panorama Converter.exe", when it opens, it will ask you if you want to run an external program, select "yes". Once that program opens, go to the menu bar File -> Open select your spherical image. After that, Picture -> Panorama -> Transform. A dialog comes up. Set the input format to Latitude/Longitude. Set the output format to Cubic. Click OK, then File -> Save As. Now that you are done with HDR Shop, close it. Here is what the image HDR Shop Pro generated should look like: LINK
Back to the main converter program, open your cubic image from the Open File Dialog. A portion of the image should then appear on the main window, click anywhere on the window to display a different portion of the cubic image, do this until all of the portions have been clicked on, which automatically generates 6 image files which may be combined into one image using the program that comes with the Cubic Panorama Plugin. Then it may be used in your game, just that simple. There is an even easier way to do this but I'll post it some other time it's midnight where I am and I need sleep.
Cheers!
TKG