> NVIDIA RTX Remix [...] is a platform for remastering fixed function pipeline DirectX 8 and 9 games, such as [...] Half-life²<p>I'm confused by what they define as `fixed function pipeline`. Those games totally have a lot of custom shaders rendering all kinds of complex of lighting. As someone with OpenGL but no DirectX experience, I understand the "legacy" way of the intermediate mode functions and the "semi-modern" way of binding vertex buffers and drawing them via shaders. Those games fall in the latter category, so what makes them fixed function pipeline games?