A bit of inspection in the full game’s files. There are lots of stadiums which contain very detailed exterior data. And when i am talking about detailed i mean that there are A LOT of meshes dedicated to the exteriors. Maybe 1/3 or 1/4 of the full stadium model file size. Here are some of the stadiums:
Fifa 15 has indtoduced some changes to all model textures.
The most important one is that all textures have doubled their sizes.
Face textures are now 1024×1024, ball textures 1024×1024 and boot textures 512×512
The second one that i noticed is that they introduced a new compression for the normal maps. From now and on the normal maps will be compressed with -BC5 compression. This is fairly new type which is probably optimized for normal maps and with the latest versions of DirectX.
One of the most important features of the upcoming version. General model file overwriting. That means that exactly what happens with the head and hair models, is available with ALL other models. You can import them, alter them to your will and export them. Of course that contains uv maps, color maps vertex positions, scalings rotations everything. Alongside with that texture export will be also available in the overwriter.