While you'll keep repeating unfounded vague claims, and I'm talking for your original claim that DX12 influenced Vulcan/Mantle I'll keep posting links that prove the exact opposite.
> We’ve spoken to several sources with additional information on the topic who have told us that Microsoft’s interest in developing a new API is a recent phenomenon, and that the new DirectX (likely DirectX 12) will substantially duplicate the capabilities of AMD’s Mantle.
> We’ve spoken to several sources with additional information on the topic who have told us that Microsoft’s interest in developing a new API is a recent phenomenon, and that the new DirectX (likely DirectX 12) will substantially duplicate the capabilities of AMD’s Mantle.
https://www.extremetech.com/gaming/177407-microsoft-hints-th...