How to make a sky using 3dsmax7

This simple tutorial will I hope explain how to create a sky for Urban Terror or other games which use a cubic skybox.

A skybox is basically a collection of 6 images which when applied to brushes in your map will draw as a wrapped sky.

For the purpose of this tutorial I'll create a simple sky with a few simple elements to show the technique.

In my example, I've created 4 basic materials, one for the sky which is a simple blend between 2 blues and 3 other simple reflective materials for the geometry inside the box.