GDC 2024 - Global Illumination With AMD FidelityFX™ Brixelizer, Plus AMD FidelityFX SDK Updates

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: gpuopen.com/gd...
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