Leveraging Multi-Texture
•Store diffuse maps in lower resolution and use multitexture to save memory
•Four Full Res (256 x 256) 4-bit = 128kb
•Full Res Base + four 1/4 res lightmaps = 40kb
•Useful when you have lots of similar (yet unique) textures.

•Dynamic light maps
•Day/Night lighting cycles
•Fire or other dynamic light sources