passiveMotionCB :: IORef Camera -> MotionCallback
passiveMotionCB cameraRef position = cameraRef $~! cameraOnMouse position
passiveMotionCB :: IORef Camera -> MotionCallback
passiveMotionCB cameraRef position = cameraRef $~! cameraOnMouse position
passiveMotionCB cameraRef position = cameraRef $~! cameraOnMouse position