Shaders are programs for the GPU

• Like any program, they need to be compiled
• Compile both vertex and fragment shaders separately
• Combine them into a shader program
  • GPU’s way of storing a graphics pipeline

Compiling shaders is uncomfortable

• We have a library function initShaders()
  • makes the process simple
• We’ll call it in our init() function
  • call it for every combination of shaders required