Huddy told us AMD has done a "great deal of work" with the Khronos Group, the stewards of the OpenGL spec, on OpenGL Next. AMD has given the organization unfettered access to Mantle and told them, in so many words, "This is how we do it. If you want to take the same approach, go ahead." Khronos is free to take as many pages as it wants out of the Mantle playbook, and AMD will impose no restrictions, nor will it charge any licensing fees.
Speaking of which, Huddy told us 75 developers are now working on Mantle titles in the consumer realm. Enthusiasm, he added, "seems unbridled." Some of those developers see Mantle as a stepping stone to DirectX 12, while others view the API as an "opportunity to differentiate themselves."
Huddy expects developers to keep using Mantle after DX12 arrives, too, for two reasons. First, AMD can add support for new GPU features very quickly—much quicker than Microsoft, which rolls out major DirectX updates only every 4-5 years. Second, Mantle has full support for Windows 7, which DX12 may not.
Full Article
http://techreport.com/news/26922/amd-hopes-to-put-a-little-mantle-in-opengl-next
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