Mouse delta input doesn't read null delta

Hello
I'm using input system 1.2.0 and I'm trying to read <Mouse>/delta as Vector2 through the player input in this way:




the action is then mapped to a unity event "onLook" that reads the value:

Code (CSharp):

1.    
2. public static void onLook(InputAction.CallbackContext context)
3. {
4.     rotateInput = context.ReadValue<Vector2>();
5. }
6.  

However, the event is not called when the mouse stops while I expect it to read (0,0) value.
It was working as expected with the 1.0.2 version.

Where am I wrong?

Thanks

 

I noticed the same issue, did you find a solution?

As a workaround I changed my script to call ReadValue every Update instead of using the event callbacks, this returns the correct 0,0 value. I hope the fix it in a new update.

 

I am using the same version of the input system and get the expected behavior.

Code (CSharp):

1. public void LookAction(InputAction.CallbackContext ctx)
2. {
3.         if (ctx.canceled)
4.         {
5.             Debug.Log($"Stopped {ctx.ReadValue<Vector2>()}");
6.         }
7. }

Console spits out Stopped (0.00, 0.00). when I stop moving the mouse.

This is using the PlayerInput component using the UnityEvent.

 

I checked again and even if I use the PlayerInput component it's the same behavior for me, which makes sense, because the PlayerInput class uses the same events internally.

I added more debug logs and the "canceled" event, which would return the 0 values, does not get called at all in my case, which is weird, because the input debugger shows the change and shows the correct 0 values.

I will make a new empty Unity project and send a bug report if it happens again. In the meantime I will continue with my ReadValue in Update workaround.

Seems to be a rare issue, because I only found this thread about the topic or maybe the other posts used different terms, not sure.