Zoom not working on mobile

Vacation time: I will be on vacation from October 3rd to October 15th, please expect a delay in my support. Thank you for your understanding.

Janna

Hi, I am trying out Perspective_And_TopDown_Demo scene. It works as expected in my Windows and Mac editor but when I deploy in ios I can't get the zoom or pan working but the rotation is working. And in the debug I can see message: NullReferenceException: Object reference not set to an instance of an object at Exoa.Common.BaseTouchInput.GetMouseWheelAxis in Exoa.CameraPersBase.Update().

Janna

Janna Also I just tried Free Camera and I can't get any controls to work getting similar error regarding GetMouseWheelAxis but in Cameras.CameraFree.Update

Anthony

Janna Thanks for reporting, probably because InputSystem.Mouse.current is null on mobile with the new input system. I will fix this upcoming weekend and keep you posted.

You can try to replace the code inside BaseTouchInput.GetMouseWheelAxis() by:

        public static float GetMouseWheelAxis()
        {
#if ENABLE_INPUT_SYSTEM
            return UnityEngine.InputSystem.Mouse.current != null && UnityEngine.InputSystem.Mouse.current.scroll != null ? UnityEngine.InputSystem.Mouse.current.scroll.ReadValue().normalized.y * .1f : 0.0f;
#else
            return Input.GetAxis("Mouse ScrollWheel");
#endif
        }
            return Input.GetAxis("Mouse ScrollWheel");
#endif
       }

Same with GetMouseWheelDelta()

        public static float GetMouseWheelDelta()
        {
#if ENABLE_INPUT_SYSTEM
            return UnityEngine.InputSystem.Mouse.current != null && UnityEngine.InputSystem.Mouse.current.scroll != null ? UnityEngine.InputSystem.Mouse.current.scroll.ReadValue().y : 0.0f;
#else
            return UnityEngine.Input.mouseScrollDelta.y;
#endif
        }

Janna

I have debugged this issue by returning 1 in public static float GetScroll() commenting out the code return 1 - (BaseTouchInput.GetMouseWheelAxis()); after this I can use the controls on mobile and the exception goes away. Wonder what is the proper fix to this issue?

Janna

Thanks!