specialKeyboardCB :: IORef Camera -> SpecialCallback
specialKeyboardCB cameraRef key _ = cameraRef $~! cameraOnKeyboard key
specialKeyboardCB :: IORef Camera -> SpecialCallback
specialKeyboardCB cameraRef key _ = cameraRef $~! cameraOnKeyboard key
specialKeyboardCB cameraRef key _ = cameraRef $~! cameraOnKeyboard key