When the renderer is set to OpenGL and mouselook is enabled, all pixels that are supposed to be transparent are rendered as opaque. <img width="1080" height="603" alt="Image" src="https://github.com/user-attachments/assets/8a1c94a7-1975-4b31-aaeb-19f675ef1e23" /> (And yes, I know I'm a heathen for playing Doom with mouselook)