Foliage in AMD FidelityFX™ Brixelizer GI

Originally posted: July 17, 2024

Last updated: July 22, 2024

Foliage in AMD FidelityFX™ Brixelizer GI

AMD FidelityFX Brixelizer GI is a dynamic global illumination solution available for DirectX®12 and Vulkan® as part of the AMD FidelityFX SDK. It leverages the Brixelizer sparse distance field backend to deliver GI that does not require hardware-accelerated ray tracing.

Currently, Brixelizer GI does not support foliage. Foliage here refers to transparent alpha-clipped geometry. In this two-part blog series, we will investigate Brixelizer GI to pinpoint the problems faced with foliage-heavy scenes.

The second part will explore and extend the Brixelizer GI algorithm to add support for foliage. The blog will also briefly touch on animated foliage.

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