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I am not sure it is easy to change opengl to run parallelly given it all shares a global state. How do you not mess up anything when render two scene at same ti

I am not sure it is easy to change opengl to run parallelly given it all shares a global state. How do you not mess up anything when render two scene at same time if two pipeline shares the same variable but you want to fill it with different value? And if you really want to change it so hard to give pipelines standalone context. Why not use the webgpu? It seems just designed in a stateless way that I just described.

skocznymroczny 6y ago
OpenGL wasn't designed with multithreading/parallel execution in mind. Before running any OpenGL call, you have to bind the application-wide context to a specific thread. Vulkan, DX12 work differently - they allow you to create command lists from separate threads, but in exchange you have to work on the synchronization yourself via semaphores and fences.