How far a pointer may travel between press and release and still produce a
click, in NDC units.
0.02 NDC is 1% of the surface's width (NDC spans 2 units edge to edge) —
about 8 px on an 800 px-wide canvas, which is the order of magnitude the
platforms use for their own click/drag discrimination. It is expressed in NDC
rather than pixels so the pointer source needs no notion of device pixel
ratio, and it is anisotropic on a non-square surface (1% of the width
horizontally, 1% of the height vertically) — deliberately, since that is what
"a small fraction of the viewport" means on each axis.
How far a pointer may travel between press and release and still produce a
click, in NDC units.0.02NDC is 1% of the surface's width (NDC spans 2 units edge to edge) — about 8 px on an 800 px-wide canvas, which is the order of magnitude the platforms use for their own click/drag discrimination. It is expressed in NDC rather than pixels so the pointer source needs no notion of device pixel ratio, and it is anisotropic on a non-square surface (1% of the width horizontally, 1% of the height vertically) — deliberately, since that is what "a small fraction of the viewport" means on each axis.Override it per input with PointerInputOptions.clickMoveThreshold.