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TV and movies are full of CGI to create fantasy worlds with dragons and castles, futuristic intergalactic civilizations, or historically accurate cities of 18th century Japan, like in the TV series Shogun. But have you ever wondered how these CGI images are created? And why are these scenes so precise that they trick the eye into believing they are real? In this video, we dive into path tracing, a type of ray tracing algorithm. We'll take a closer look at how ray tracing is used to create accurate lighting and realistic scenes, and how it performs quadrillions of calculations. High-quality AI-controlled video translation from @BranchEducation Original video — • How does Ray Tracing Work in Video Ga... Contents: 00:00 - How does CGI work? 01:00 - Why Ray Tracing Is Incredibly Hard 02:41 - How a CGI Scene Is Created 05:48 - Rendering a Ray Traced Scene 09:09 - Lighting a Scene with Ray Tracing: Global Illumination 13:46 - Material Roughness and Ray Reflection 16:04 - Solving the Ray Tracing Problem 19:57 - Graphics Cards and Ray Tracing Cores 22:46 - We Love Ray Tracing in Blender 23:52 - Ray Tracing in Video Games 24:27 - Screen Space Ray Tracing