Speed of built in lights v.s. custom lights
Quick question: if you are writing a custom shader for lighting, it is still useful (faster) to use the build in lights from openGL, or might I just as wel use my own array of lights? I don't expect that many object will be lit by more than 8 lights OFTEN but I would really prefer that it would just work with 9 or more lights as well. So is there still a good reason to use the built in lights from opengl when you write your own shader??