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Bootstrap AMD FSR2 Vulkan permutations cross-platform

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Kelsi 2026-03-08 21:45:25 -07:00
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third_party/fsr2_vk_permutations/README.md vendored Normal file
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## AMD FSR2 Vulkan Permutation Snapshot
This directory contains pre-generated Vulkan permutation headers used by the AMD FSR2 SDK Vulkan backend.
Why this exists:
- Recent upstream `GPUOpen-Effects/FidelityFX-FSR2` checkouts may not include generated `*_permutations.h` files.
- WoWee uses these vendored headers to bootstrap AMD FSR2 builds consistently on Linux, macOS, and Windows without requiring Wine.
Source SDK commit used for this snapshot:
- `1680d1e` (from local `extern/FidelityFX-FSR2` checkout when snapshot was generated)
Refresh process:
1. Regenerate Vulkan permutation headers in `extern/FidelityFX-FSR2/src/ffx-fsr2-api/vk/shaders`.
2. Copy `ffx_fsr2_*pass*.h` files into this directory.
3. Commit the updated snapshot together with any AMD FSR2 integration changes.