Explore the fundamentals of open-source graphics in this comprehensive talk by Boris Brezillon from Collabora. Gain insights into GPU architecture, including pipeline stages, shaders, and massively parallel computing concepts. Learn about graphics APIs like OpenGL, Vulkan, and DirectX, and discover how they interface with GPUs. Delve into the open-source Mesa stack, understanding its role in providing API support. Examine the differences between kernel and userspace drivers, and explore Mesa's state tracking approaches. Acquire knowledge on GPU internals, command streams, and the challenges of parallelization. Perfect for those transitioning from CPU-centric development or seeking to understand the complexities of modern graphics systems.