How to Enable and Disable the Metal HUD on macOS
The Metal HUD is a macOS overlay that displays real-time GPU metrics: FPS, video memory usage, frame time. It appears directly on top of any Metal app. Useful for monitoring performance in games and graphics applications. Enable /bin/launchctl setenv MTL_HUD_ENABLED 1 Open (or reopen) the app after running the command. The HUD appears in the corner of the screen. Disable /bin/launchctl unsetenv MTL_HUD_ENABLED Close and reopen the app for the HUD to disappear. ...