Building skyboxes within the Reach profile

What would a world, virtual or otherwise, be without a sky?

In this section, we'll be adding a sky to our scene with the rather simplistic method of wrapping the world in a box, and "painting" the inside of the box to make it look like the world around us, as demonstrated in the following screenshot:

Getting ready

This recipe requires a skybox texture, as shown in the following:

The exact orientation and position of the panels for each direction isn't important, although you will need to adjust the coordinates specified in step 4 of the following recipe to match your particular skybox texture.

How to do it...

To render a skybox within the Reach profile:

1. 1. Add a collection of helper methods to convert the given corner of a texture coordinate measured in pixels into the ratio, from zero to one, that the graphics infrastructure prefers to deal with:

   private static Vector2 ScaledLeft(
   Rectangle portion, Rectangle whole)
   {
   return Vector2.UnitX * portion...