> OpenGL has one global state. As far as I know, it doesn't, it's actually thread-local state; you can have multiple states, and you use glXMakeCurrent/eglMake

> OpenGL has one global state. As far as I know, it doesn't, it's actually thread-local state; you can have multiple states, and you use glXMakeCurrent/eglMakeCurrent to choose which one is active for the current thread. And the protocol which can be considered the successor of OpenGL (Vulkan) replaced the thread-local state with an explicit reference to the state. > A database connection is a global. The product I develop at work uses multiple database connections, to several different databases, which can be added and removed at runtime. They most definitely aren't global.