We first created a texture sheet that had windows and walls etc from a photo of a building. Below is the building I chose, which was an interesting task as I had to do a lot of photo editing as the texture sheet couldn't have shadows on it.
Once the texture sheet was made we then used a grid set up to align all the textures which we then repeated using the same grid technique through 3DS Max and UDK so that everything aligned perfectly.
|Extruded Texture Map in 3DS Max|
Although it was done terribly as it is very obvious that they are modular assets and the same static meshes were copy and pasted everywhere I still thoroughly enjoyed using this technique as it was very quick and easy to create a more complicated structure.
Part of the reason why the finished building didn't look so great was due to the fact that I didn't successfully align the static meshes together so there is either texture overlapping or else gaps between the models which is something I now know to avoid.
Overall I was very happy with what I learnt and I thoroughly look forward to creating some more modular assets using a better texture sheet and aligning things properly.