Making Custom Sky Cubes

This is an optional step. If you don't want to make your own custom sky, just use one of the existing skies that shipped with MCM 1.0. Your scene file references the name of the .cub file you want to appear in the game.

- To make your own skies you need to create 6 images that are 504x504 24-bit targa files.

- The six images must be named as follows:
f0010001.tga - north side of sky
f0020001.tga - west side of sky
f0030001.tga - south side of sky
f0040001.tga - east side of sky
f0050001.tga - looking straight up
f0060001.tga - looking straight down (image should be black - you never look down)

- The orientation of the up image is as follows: The bottom edge of the up image connects to the top edge of the north image.

- Do not edit the cube13.ini sample file. But you can rename the .ini to a new filename. When you build a cube file using MakeCub.exe, the output .cub file is the same base filename as the input .ini file.

- If you render your images in a 3D package, you MUST set the field of view of the camera to exactly 90 degrees. If you use a package like Bryce, it is IMPOSSIBLE to set the camera to exactly 90 degrees because they don't use real world units. They use "Bryce Units" which an abstract unit of measurement.

- Setup your camera to render 5 images in the following order: north, west, south, east, up. Down doesn't matter and can be a black image.

- You can render your images at any resolution as long as the aspect ratio of the image is 1:1. I usually render sky images at about 1000x1000 resolution then lay them all out in photoshop and ensure that they tile seemlessly before scaling them down to 504x504 and saving them as 24-bit targas.

- Place your 6 images in the same directory as your .ini file and run the MakeCub.exe utility to compile the images into a sky sub.

- Edit your scene (.scn) file to point to your custom sky cube file.

- The sky cube file MUST reside in the same directory as the other nationals or stunt quarry data.