Handle a scroll wheel event. Ctrl/Meta+scroll is left unhandled (ceded to
the upstream FOV handler). Plain scroll uses the sign of deltaY for
forward/backward motion; Shift+scroll falls back to deltaX when the
browser swaps the wheel axis, then uses that sign for roll. Inertial mode
adds an angular/linear velocity impulse, non-inertial mode applies the
rotation or translation directly. Dispatches change; no-op while disabled
or when the selected delta is zero.
Handle a scroll wheel event. Ctrl/Meta+scroll is left unhandled (ceded to the upstream FOV handler). Plain scroll uses the sign of
deltaYfor forward/backward motion; Shift+scroll falls back todeltaXwhen the browser swaps the wheel axis, then uses that sign for roll. Inertial mode adds an angular/linear velocity impulse, non-inertial mode applies the rotation or translation directly. Dispatcheschange; no-op while disabled or when the selected delta is zero.