Скачать или смотреть Unity3D Tool Material Converter

Unity 3D Material Converter in Unity Assetstore
http://u3d.as/publisher/kento-studios...

CPU optimization can be achieved by reducing Draw Calls count by Draw Call Batching. But Draw Call batching only possible with objects sharing same material. Material Converter helps you to prepare a shared material from two or more identical materials which differ only in textures and colors. It combines different textures into a texture atlus that can be used by shared material. It auto remaps mesh's uv into texture atlus.

Features:
1.0 Merge multiple textures into single shared texture.
2.0 Records different material colors into shared texture.
3.0 Auto generates UV map for shared texture.
4.0 Texture atlus has texture tiles with padded border.
5.0 One click shared material generation.
6.0 Editor integration of Material Converter.

http://u3d.as/publisher/kento-studios...