flowchart LR
    game["Windows game<br/>(D3D12, DXIL shaders)"] --> wine["Wine"]
    wine --> A["A: my D3D12 layer<br/>directly on Metal 4"]
    wine --> B["B: vkd3d-proton<br/>on Vulkan"]
    wine --> C["C: my D3D12 layer +<br/>open shader translators"]
    A --> metal["Metal 4 on Apple Silicon"]
    B --> vk["MoltenVK / KosmicKrisp<br/>(Vulkan on Metal)"] --> metal
    C --> metal
    A -.- rA["spike A: 1M-entry descriptor heap,<br/>0 mismatches in 4.2M reads ✔"]
    B -.- rB["spike B: no device,<br/>transform feedback missing ✘"]
    C -.- rC["spike C: 596/760 shaders<br/>accepted by Metal ✔"]