This talk briefly discusses how the AMD FidelityFX™ Brixelizer works, then explores how diffuse and specular global illumination is implemented with sparse distance fields in Brix GI. This provides a step-by-step breakdown of the algorithm and provide some of the solutions to problems such as populating the radiance cache and handling static and dynamic geometry. The talk also features image quality comparisons to ground truth ray-traced global illumination and some initial performance numbers to provide the audience with an idea of what to expect from Brix GI. It also showcases the Brix GI API and how it integrates into an existing Brixelizer integration. This talk also includes a preview of new samples releasing with the new version of the FidelityFX SDK, as well as an update on the changes made to existing samples. Download the slides: https://gpuopen.com/gdc-presentations/2024/GDC2024_GI_with_AMD_FidelityFX_Brixelizer.pdf *** Visit our website: https://gpuopen.com/ Follow us on X: https://x.com/GPUOpen *** Subscribe: https://bit.ly/Subscribe_to_AMD Join the AMD Red Team Community: https://www.amd.com/en/gaming/community Join the AMD Red Team Discord Server: https://discord.gg/amd-red-team Like us on Facebook: https://bit.ly/AMD_on_Facebook Follow us on Twitter: https://bit.ly/AMD_On_Twitter Follow us on Twitch: https://Twitch.tv/AMD Follow us on LinkedIn: https://bit.ly/AMD_on_Linkedin Follow us on Instagram: https://bit.ly/AMD_on_Instagram ©2024 Advanced Micro Devices, Inc. AMD, the AMD Arrow Logo, and combinations thereof are trademarks of Advanced Micro Devices, Inc. in the United States and other jurisdictions. Other names are for informational purposes only and may be trademarks of their respective owners.