Virtual Grasping Animation Taking into Account Affordance Information

Abstract

The recent spread of head-mounted displays and hand-tracking controllers allows to create Virtual Reality (VR) games with virtual grasping. To realize a realistic sense of firm grasping, such VR games require many grasp animations that make fingertips precisely touch the target objects. However, each and every grasp animation is only adequate for an individual object, and cannot be reused. This article presents an animation technique taking into account affordance information to reduce the production cost. The proposed method enables to grasp target objects in a variety of postures, by interpolating grasp poses acquired from affordance information. For that reason, this method is applicable to the currently prevalent hand tracking controllers which cannot sufficiently capture the user’s finger movements.