AMD FidelityFX™ Brixelizer/GI
AMD FidelityFX™ Brixelizer GI is compute-based real-time dynamic global illumination solution built upon sparse distance fields.
The ShadowFX library provides a scalable and GCN-optimized solution for deferred shadow filtering.
Currently the library supports uniform and contact hardening shadow (CHS) kernels.
Version 2.0 of the library now supports both DirectX® 11 and DirectX® 12. The ShadowFX API is unified across D3D11 and D3D12, allowing an easy transition to D3D12. Samples are provided for both D3D11 and D3D12 versions.
The library supports a range of different options:

The ShadowFX library can also serve as a sandbox for experiments with other shadow filtering techniques.