Hi, i have a big scene where i need to bake lightmaps . My question is , can i bake lightmaps on different pc ? and then just put them into my scene ? thanks
Yes you can. In fact, you can even bake lightmaps in other programs (e.g. 3DS Max) and import them into Unity - you just need the EXR files that are created.
http://forum.unity3d.com/threads/baking-lightmaps-with-vray-and-3d-studio-max-a-tentative-guide.97877/