Push your game's graphical quality to the limit with Shader Sandwich!
Shader Sandwich is a layer based shader editor for Unity that allows you to create in an intuitive yet powerful environment, designed for artists rather than programmers.
It comes with example shaders and detailed documentation including a quick reference and in-depth beginner tutorials. Not that you'd need them however, as Shader Sandwich is designed to let you explore and fiddle as much as possible, in an iterative flow.
