Summary
As you’ve explored in this chapter, there’s a lot of mathematics involved in creating shaders, although the basics still focus on the vectors that explain the direction of a surface with respect to the position of the light and the location of the viewer. With the addition of a few extra PBR parameters of metallicness, roughness, and AO, we are now also able to define how a surface scatters light and use that to improve a final render.
Your Python/OpenGL project is now at the point that you can continue to independently research graphics and shader techniques and experiment with them in the base that you have. You will now have a firm foundation of knowledge in this area that you can apply in the future to games and other applications alike.
The domain of mathematics involved in computer games and graphics is enormous. Unfortunately, books have page limits and authors have limited writing time. To cover everything in this field would require a set of encyclopedic...
