Using the Texture Atlas Addon
Gleb Alexandrov revisits the Texture Atlas addon in this quick CG Cookie tutorial.
In this video Gleb Alexandrov showcases a brilliant Blender addon called “Texture Atlas“. It’s the perfect tool for artists that want to maintain objects’ individuality while consolidated their UV coordinates. Watch Gleb demonstrate a practical example of multi-object map baking.
One of those addons I know is there, but I overlook a lot.
i’ve used this with BI a number of times, and i’m assuming since it’s just manipulating UVs there’s no reason it shouldn’t work with cycles baking too, right? the other tutorial i’d love to see is how light maps can be used outside of blender in something like unity. most info online just pushes users towards beast, but i’d much prefer using blender’s tools for lighting my scene if at all possible!
Have you tried anything from here?
http://forum.unity3d.com/threads/using-externally-baked-lightmaps-in-unity-3-5.146055/