Joining different UVmaps from different objects I have 7 separated objects with different UV maps, but since i want to export to unity i would like to join all the UV in order to reduce draw calls keeping the objects separated. Is it possible?
You can't combine the UV maps of multipe objects in Blender. Officialy the the TextureAtlas plugin only supports lightmaps (the link could be outdated).

But wait Gleb Alexandrov made a promising tutorial:


  John Carmack from id Software used megatexture. You use megatexture.


game-level-texturing-texture-atlas

Related Unity Links:


Draw Call Minimizer
whats-the-best-way-to-reduce-draw-calls