Re: [w3c/uievents] Needs alternative WheelEvent.deltaMode, WheelEvent.delta(X|Y|Z) (#181)

deltaX/Y/Z and related properties are radically different not only across browsers, but across operating systems.

Is there something specs can do to fix this so that we can get a value that is consistent across all browser and OS combinations?

Uses cases where this it is problematic is when building custom interaction using mouse and touchpad scroll, for example zoom controls for a 3D scene using canvas (webgl/webgpu) for custom rendering. It is nearly impossible to make the behavior of a custom interaction behave the same in all browser/OS combos, so much so that most people just pick a sensitivity value that is good enough across all browsers (a little slow in some, a little fast in some, but overall acceptable across all).

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