I'd been thinking about it, and I added another paragraph above. I get a feeling they've been targeting Vulkan 1.3 with dynamic rendering from the beginning, so

I'd been thinking about it, and I added another paragraph above. I get a feeling they've been targeting Vulkan 1.3 with dynamic rendering from the beginning, so porting to D3D12 would be roughly as complex as rewriting to target older Vulkan.