Horizontal mouse wheel scrolling causes zooming in the 2D editor in 4.x (unlike 3.x)

[miv391]

Godot version

v4.0.3.rc2.official [2ac4e3b]

System information

Windows 10

Issue description

I have a Logitech G502 mouse. Scroll wheel is also the middle button. Scroll wheel can be toggled to two different modes. Scrolling is either done in steps or in a continuous "free" mode.

Pressing middle mouse button sometimes causes involuntary zooming in, if the middle mouse button is pressed just after zooming by scroll wheel.

It doesn't matter, which scroll mode (stepped/free) of this mouse is used.
The initial zooming direction by wheel doesn't matter, the involuntary zooming is always in.

This problem doesn't happen with v3.5.2.stable.official [170ba33]

Steps to reproduce

1. Open 2D view of any scene
2. Use mouse scroll wheel to zoom either in or out
3. Immediately after zoom in/out, press middle button (which is also the scroll wheel)
4. Problem: The view starts zooming in
5. Stop pressing the middle button, zooming in stops
6. Press middle button again
7. Problem: The view starts zooming in again

Minimal reproduction project

N/A

[miv391]

I configured the middle button click to another of this mouse's (Logitech G502) button. The problem doesn't occur when I click that button quickly after zooming. So the problem seems to occur only when the same physical button is used for zooming (scroll wheel) and panning (middle button).

[AThousandShips]

So then it's because you accidentally scroll when you click

[miv391]

It is possible, but then it also is impossible to avoid. I'm normally using stepped mode where the wheel noticeably clicks when you scroll in either direction. I tried a few online mouse wheel testers and they did not detect any scrolling when I just clicked the mouse wheel. Clicking the mouse wheel doesn't cause any scrolling for example in vscode either. It may be possible that when the scroll wheel is touched the mouse sends some tiny values of scrolling and applications, Godot 3.6 including, just ignore those small values. If that is the case, I would recommend adding similar filtering of small scrolling values also to Godot 4.

[Calinou]

If that is the case, I would recommend adding similar filtering of small scrolling values also to Godot 4.

Godot does not support high-precision scrolling on Windows. The issue is that you're accidentally triggering horizontal mouse wheel scrolling when clicking the middle mouse button, and the editor interprets this as vertical scrolling when no horizontal scrolling is available. I can confirm that pressing the left/right mouse wheel scroll buttons will cause the 2D editor to zoom in 4.0.2 but not in 3.5.2 on Linux (using a Logitech G903).

When testing this locally, remember that not all mice scroll wheels have horizontal buttons available. Modern superlight mice tend to lack support for horizontal scrolling entirely.

This erroneous behavior only occurs in the 2D editor viewport, not the 3D editor viewport, not the script editor, not other scrollable controls.

[miv391]

The issue is that you're accidentally triggering horizontal mouse wheel scrolling when clicking the middle mouse button, and the editor interprets this as vertical scrolling when no horizontal scrolling is available. I can confirm that pressing the left/right mouse wheel scroll buttons will cause the 2D editor to zoom in 4.0.2 but not in 3.5.2 on Linux (using a Logitech G903).

I can confirm that too. When I disabled horizontal scrolling from mouse wheel, the problem didn't occur anymore.

[p10tr3k]

I have encountered the same issue on MacOS. Very annoying, happens very often. I don't need scrolling with mouse wheel when Cmd button is pressed so adding just a setting to disable zooming in script editor with mouse would be enough.