Quote: "I believe it must be multi-textured and not one atlas texture"
Actually we don't encourage multi-textures, they have a big hit on performance. Until recently we didn't even offer multi-texture support and advise against using anything other than a single altas texture except in a couple of very rare circumstances.
Remember for each texture, a draw call is required, so if a model has 5 textures, it will take 5 time longer to render.
SC
i7-4770s 3.10ghz - Geforce GTX 650ti
