Foundations of Ray Tracing in CGI

Have you ever wondered how modern video games and animated films achieve breathtaking, lifelike lighting and reflections? Ray tracing is the fundamental technology that simulates physical light behavior to generate stunningly realistic images. This text-only introductory course breaks down the complex mathematics and physics behind ray tracing into clear, accessible concepts. You will transition from a curious beginner to someone who understands how light rays interact with virtual environments to produce realistic shadows, reflections, and refractions. What you'll learn: 1. Understand the fundamental physics of light, including reflection, refraction, and absorption. 2. Learn the core mathematics behind ray-sphere intersection and vector operations in 3D space. 3. Master the primary differences between ray casting, recursive ray tracing, and path tracing. 4. Explore how modern rendering systems calculate shadows, specular highlights, and global illumination. 5. Analyze structured pseudocode used to build a basic ray tracer from scratch. 6. Discover current industry trends, including real-time ray tracing and denoising techniques. We begin with foundational terminology and the basic physics of light, then gradually build up to vector math, ray-object intersections, and rendering algorithms through step-by-step written explanations. This course is designed for absolute beginners in computer graphics, game development, or 3D art, with no prior rendering experience required. Start reading today to unlock the secrets of photorealistic rendering.