[READY] Fix stretched model textures

This may cause the textures to be misaligned ~7px with the height maps, but I don't think that matters too much.

Please check and merge.

![Giddeyup](http://24.media.tumblr.com/fd4acc2768c447aa02189e228648b501/tumblr_n1u9swxw6k1qdlh1io1_400.gif)