Touchpad gesture for brush size should be relative

[feiss]

Not absolute, like it is now. This would improve usability and support with Oculus thumbstick.

[dmarcos]

Just as a note: The controls can be completely different for touch and vice. We could make brush size absolute in Vive and relative in Touch.

[avrljk]

@dmarcos wrote:

controls can be completely different for touch and vice. We could make brush size absolute in Vive and relative in Touch.

Or both for both ;) with consistent mappings by using "asymmetric controls" hinted at in #214.

An action on the non-painting hand controller (people mostly paint one-handed), could toggle brush resizing between absolute and relative.

A quasi-modal action similar to the Shift key on a keyboard, would be preferable to a modal action like the Caps Lock key. People seldom forget to release the Shift key. People who actually use the Caps Lock key frequently forget it's on.

For relative brush size adjustments, maybe use the signed projection of the current touch position onto either the Y (existing control axis), or X axis ( #214 ) as input to a carefully chosen function, so holding one position resizes the brush at a rate that is both convenient and comfortable.