P0-P-172: Part 48: Space Exploration Engine Terrain Textures

I have, with very little effort, succeeded in adding terrain textures to the Space Exploration Engine!

I was quite concerned about this, and in fact, I had almost decided to postpone it to MS2, since I thought it would be difficult, but in actual fact most of the support code is there already. The terrain is made using a vertex color shader in unity, and I just needed to change that to use a conventional material (all of this was done in the editor!) and I could add textures.

There are a few problems yet, such as the fact that I can only add one material to the entire terrain, and once I update that, the entire terrain changes at once. I believe I can fix this fairly easily by adding an array of materials to the terrain class where currently there is an array of colours.

The terrain texures also look quite poor up close, and I am having some issues getting normal maps, etc, to look good, but this may just require some better quality art, I am using the art that came with the standard assets package for the moment.