A virtual fixture is an overlay of augmented sensory information upon a user's perception of a real environment in order to improve human performance in both direct and remotely manipulated tasks. Developed in the early 1990s by Louis Rosenberg at the U.S. Air Force Research Laboratory (AFRL), Virtual Fixtures was a pioneering platform in virtual reality and augmented reality technologies.
HINT:
In this Dossier
Virtual Fixture in the context of 3D user interaction
3D human–computer interaction is a form of human–computer interaction where users are able to move and perform interaction in 3D space. Both the user and the computer process information where the physical position of elements in 3D space is relevant. It largely encompasses virtual reality and augmented reality.
The 3D space used for interaction can be the real physical space, a virtual space representation simulated on the computer, or a combination of both. When the real physical space is used for data input, the human interacts with the machine performing actions using an input device that detects the 3D position of the human interaction, among other things. When it is used for data output, the simulated 3D virtual scene is projected onto the real environment through one output device.
View the full Wikipedia page for 3D user interaction