I actually got tipped off about Rich Geldreich leaving Valve in early May, but refrained from saying anything until he stated it publicly, and that has now happened.
In his last blog post he said this, titled "DirectX Creator Says Apple’s Metal Heralds the End of OpenGL" he notes another dig at OpenGL:
Alex St. JohnNearly twenty years later OpenGL still sucks for games, OpenGL drivers are STILL consistently broken across devices, OpenGL is still driven by CAD applications
So, it seems Rich is completely hung-up on OpenGL vs everything else to include that quote above in his own blog post.
To me it just sounds like more warmongering from Apple fans, but I haven't heard much on Apple's Metal API to properly comment on it. Although it's targetting iOS, and not the desktop. So I utterly fail to see how it will damage OpenGL.
The same kind of thing was said about DirectX 12 that it will blow OpenGL away. Even though a developer from the studio "Naughty Dog" (A big AAA studio) said:
Cort Stratton, Naughty DogThat session was pure marketing hyperbole
Rich signs off the blog with an actual comment himself:
Rich Geldreich, Ex-ValveBTW - I'm no longer at Valve or working on vogl. And no, I'm not being paid by, nor do I know anyone still at Apple, lol.
After his heated blog posts on the state of OpenGL and driver support it's a shame he has left Valve, as he was doing such great work on the VOGL OpenGL debugger which developers have wanted.
I have reached out to Rich for a chat to see if we can find out anything more.
Tell us what you think in the comments folks.