FauxThrow: Exploring the Effects of Incorrect Point of Release in Throwing Motions

TL;DR

This study investigates how the timing of the Point of Release in throwing animations affects perception, revealing that errors are more noticeable depending on throw type and viewing conditions, which can inform animation improvements.

Contribution

It provides new insights into how PoR timing influences perceived realism in throwing animations, aiding the development of more convincing virtual motion representations.

Findings

Late PoR errors are more detectable in overarm throws

Early PoR errors are more detectable in underarm throws

Viewpoint and ball travel distance affect perceived realism

Abstract

Our aim is to develop a better understanding of how the Point of Release (PoR) of a ball affects the perception of animated throwing motions. We present the results of a perceptual study where participants viewed animations of a virtual human throwing a ball, in which the point of release was modified to be early or late. We found that errors in overarm throws with a late PoR are detected more easily than an early PoR, while the opposite is true for underarm throws. The viewpoint and the distance the ball travels also have an effect on perceived realism. The results of this research can help improve the plausibility of throwing animations in interactive applications such as games or VR.