This video discusses normal vectors, how they work, how to calculate them, and a variety of uses in computer graphics including baking normals on a plane to fool the lighting system into thinking there is more complicated geometry on the 3D model.

For the demonstrations we utilize Blender, a free open source 3D modeling and animation program: https://www.blender.org/

I also have another YouTube channel where I do beginner tutorials for Blender: ‪@howtuts6591‬