Texturing
A Cloaking Device that comes with a range of sample textures for different transition effects.
A closer look at Crunch, the public-domain compression library that can drastically reduce the size of your textures.
A guide to using Unity's compression tools to reduce the size of your textures without compromising their graphical fidelity.
Unreal Engine provides a wide range of texture compression settings which can reduce texture size with minimum impact on visual fidelity.