In the past few months, we have covered LEAP Motion’s Orion a bunch of times here. It is a hand tracking system with low latency and long range that lets you get more into VR environments. With add-on modules, you can do even more with this software. The Attachments module makes it easy to attach game objects to a hand.
These add-ons are built on top of the Unity Core Assets for Orion. This particular hand model covers palm, finger tips, and arm actions. These scripts simply make it easier to detect what a user’s hand is doing. More information is available here.