Computer graphics magazine CG World has a special feature on Final Fantasy XIII. The February 2010 issue contains a detailed look at Final Fantasy XIII’s models and textures.
The article also has a look at Final Fantasy XIII’s development schedule. Production began back in 2005 on the PlayStation 2. After the Final Fantasy VII PS3 demo Square Enix switched platforms and officially made Final Fantasy XIII a PlayStation 3 game.
At that time Final Fantasy XIII was being developed with the White Engine, which evolved into the multi-platform Crystal Tools and finally created a custom engine just for Final Fantasy XIII.