Learning shaders when AI can write them for you

This is the prologue of a course on shaders, presenting a planet drawn by one vertex shader and one fragment shader that you can spin by dragging the canvas. The course breaks the planet down into data, vertices, rasterization, fragments and output, and in the last lesson you rewrite it yourself. It notes the shading appears in bands rather than a smooth gradient, and says you can start from any chapter in the contents.