Making Connections: Real-Time Path-Traced Light Transport in Game Engines
254Path traced effects in games have been a dream of many since the early days of real-time rendering. The advent of hardware accelerated ray tracing and recent advances in algorithms derived from Reservoir-based Spatio-Temporal Importance Sampling (ReSTIR) have turned those dreams into reality. In this 2024 Advanced Graphics Summit talk, Evan and Adam discuss the theoretical and practical elements necessary to add real-time path–traced lighting to an advanced, modern game engine (Unreal Engine 5).
GDC returns to San Francisco in March 2025! For more information, be sure to visit our website and follow the #GDC2025 hashtag on social media.
Subscribe to the GDC newsletter and get regular updates via Facebook, Twitter, LinkedIn, or RSS.
Join the GDC mailing list: http://www.gdconf.com/subscribe
Follow GDC on Twitter: https://twitter.com/Official_GDC
GDC talks cover a range of developmental topics including game design, programming, audio, visual arts, business management, production, online games, and much more. We post a fresh GDC video every day. Subscribe to the channel to stay on top of regular updates, and check out GDC Vault for thousands of more in-depth talks from our archives.