Windows used to secretly use green screens to render videos, which is how you could trick MS Paint into becoming a video player

Video playback on old computers was a whole lot of smoke and mirrors. If you opened up the ol' Windows Media player back in ...
IEEE

Metrics for 3D Object Pointing and Manipulation in Virtual Reality: The Introduction and Validation of a Novel Approach in Measuring Human Performance

Abstract: Assessing the performance of human movements during teleoperation and virtual reality (VR) is a challenging problem, particularly in 3D space, due to complex settings. Despite the presence ...