Using pre-baked noise textures instead of real-time computing them will make your shaders cheaper, and you could sample more of them at the same time, for less cost. It's intended to replace the "noise material node" in your materials. Ideal use cases include volumetric clouds, volumetric fog, custom ray marchers, procedural texturing, particle effects and more. The pack also includes tools and a guide for making your own volume textures.