I would like to know whether Unity 3D can detect Hand Movements using a web camera. If Unity 3D can’t do this by it self, then any other 3rd party library or something which we can attach with Unity 3D? I need to make a game which I can play with my hand movements, rather than pressing keys on keyboard.
It can’t. But there is a lot of stuff out there on the internet. Just googled “webcam hand gesture recognition library” and got tons of results…
This one has some interesting looking links.
Emgu CV looks interesting too.
And of course there’s kinect, but you need the 3d sensor.
The LeapMotion Sensor could be something you’re interested in: https://www.leapmotion.com/ They have an API for Unity too.