Total Baker is the first Texture Baking System ever made as Unity plugin. It will help artists to create detailed texture maps for their low-poly models starting from a high-poly model.
>>> Asset Store Link <<<
>>> Online manual and tutorials <<<
Why texture baking?
First, it might be difficult to create precise texture maps (normal, AO, height, etc.) for lowpoly models, even with the most advanced image editors. Then, the various tools to create maps from photos (like CrazyBump) are very easy to use but often don't produce good maps since they try to reconstruct the surface details from a simple image. The only way to get the desired results is to create a detailed high-poly model and to transfer (bake) its surface details to texture maps using a texture baking tool, like Total Baker.