https://learn.microsoft.com/en-us/windows/win32/api/d3d12/nf-d3d12-id3d12graphicscommandlist-omsetblendfactor
ID3D12GraphicsCommandList::OMSetBlendFactor (d3d12.h) - Win32 apps | Microsoft Learn
Sets the blend factor that modulate values for a pixel shader, render target, or both.
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