You are simply wrong again,. GLnext was in development long before mantle came to being, but the develop,net was in design ideas,architectures, features, philosophy, paradigm, theory and minimal code. Opengl ARB is a slow beast, that is the main criticism of opengl. The idea of Glbext was soe thing akin to mantle, not an evolution of OGL, that is why they called it GLnext, and not gl5.0., and why they changed the name to Volkan and not OGLnext. Everyone wanted a fresh start, everyone wanted to drop legacy support. Everyone one a modern future looking API. Everyone wanted multi threading and efficiency at its core. Everyone wanted to reduce overhead. That was the whole philosophy of the project long befor AMD contributed any code. The design goals was something akin to mantle but cross hardware, cross vendor, compatible, open,
And developed and maintained by a consortium and not a single interested party, e.g. AMD. That matter part is a. Very critical point and is why neither intro nor nvidia or anything else like Samsung, Apple, Qualcomm etc. touched mantle with a barge pole.
Eventually AMD gave up on on Mantle and rather than waste all that development they gave it to the Kronos group to learn from and take advantage of. That is great, I really applauded AMD for doing that and I really doubt nvidia would have done the same so quickly. But Manlte was a hardware and vendor specific bets I eolentation of some of the ideas of GLnext that had already been widely developed upon. This made a useful code base to start building open, and nvidia admit to this the selves. But what Khronos clearly states that the code had radii ally developed and changed to bring in line with what glNext's vision was and allow it to be cross hardware and architecture agnostic, this is like the Greek ship myth, if you replace every Olank of wood, the sail, the mast, the keel, the rudder, etc, is it still the same ship, even although know instead of a sail it has a twin V12 10liter Diesel engine.
The Vice President of nvidia is the president of. The Khronos group. Don't under estimate how invested in Vulcan voids is, how much support they give, and how much they have contributed.
Your whip at OGL is patently worms. OGL never got mainstream windows use because of Microsoft not Supporting it in favor of its own DX as a competitive advantage against Apple and Linux. Nvidia's extension exist because of the nature of the library that permits vendors to extend the base functionality rather than waiting for a new version. You have to realize many of Nvida's extension were simply rename to become part of the next core, they had a huge influence in adding functionality. AMD just never had the same interet because they don't have the same profesional graphics market any more. Jus look at the sorry state of Linux OGL drivers in the last 20 years. Nvidia dominate here and have done since I was a spotty teenager. AMD were on the opengl ARB, which is now called the Khronos BoD, that is the exact same damn thing. They contributed, just less, they cared less, had worse drivers even in windows
I repay this agin, the president of the Khronos group is the Vice President of nvidia. That should tell you just how involved nvidia is with Volkan. Volkan is the successor of opengl, of which nvidia was a much bigger supporter.