i miss a more sophisticated hittest for touch and mouse input.
in vvvv we have this hittest(quad) which takes a spread(array) of rectangle transforms and tests if a spread (array) of touchinputs is within the rectangle. testing multiple touches is an edge case, we most use a single touch with an array of buttons(rectangles).
what could be incorporated is transforming rectangles from 3d space to 2d space to test in 2d. (eg. Flags glued to a 3d product which is moved by orbitcontrols)