The idea here is that each fragment shader is completely self contained, providing all the functions in the file to achieve the desired pattern.

• Fragment shader inputs from vertex shader.
• Fragment shader output. Typically just the pixel colour.
• Any expected uniforms that should be set outside the fragment shader. (If any present, likely required to be filled for shader to work as expected)
• Defines.
• Functions used from other peoples work with credit given.
• General purpose functions (Likely found across multiple files)
• Pattern specific functions
• The main, demonstrating each of the pattern functions.