How does Ray Tracing Work in Video Games and Movies?
TV and Movies have a ton of Computer Generated Images [CGI] to create fantasy worlds with dragons and castles, futuristic intergalactic civilizations, or historically accurate cities of 1700s Japan, such as in the recent TV show Shogun. But have you ever wondered how these CGI / Computer Generated Images are made? And how are these scenes so accurate that they fool the eye into thinking they are real. In this video, we're diving into Path Tracing, a type of Ray Tracing algorithm. We'll explore exactly how Ray Tracing is used to create accurate lighting and realistic scenes and how it uses quadrillions of calculations.
Thank you to Cem Yuksel, a professor at the School of Computer at the University of Utah. He helped to proofread the script for inaccuracies, and his only course on computer graphics and interactive graphics was incredibly useful in researching this video.
Scanlands by Piotr Krynski
Agent 327 Barbershop by Blender Animation Studios
The Junk Shop by Alex Trevino. Original Concept by Anais Maamar
Thank you to the Blender Dev Team!
Table of Contents:
00:00 - How does CGI Computer Generated Images Work?
01:00 - How is Ray Tracing an Incredibly Difficult Problem to Solve
02:41 - How to Create a CGI Scene
05:48 - Rendering a Scene with Ray Tracing
09:09 - Lighting a Scene with Ray Tracing: Global Illumination
13:46 - Material Roughness and Bouncing Rays
16:04 - Solving Ray Tracing
19:57 - Graphics Cards and Ray Tracing Cores
22:31 - Brilliant Sponsorship
24:20 - We Love Ray Tracing in Blender
25:27 - Ray Tracing in Video Games
26:23 - Screen Space Ray Tracing
