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Soft-Touch Haptics Modeling of Dynamic Surfaces

Soft-Touch Haptics Modeling of Dynamic Surfaces
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Author(s): Hanqiu Sun (The Chinese University of Hong Kong, Hong Kong) and Hui Chen (Chinese Academy of Sciences and The Chinese University of Hong Kong, China)
Copyright: 2011
Pages: 23
Source title: Gaming and Simulations: Concepts, Methodologies, Tools and Applications
Source Author(s)/Editor(s): Information Resources Management Association (USA)
DOI: 10.4018/978-1-60960-195-9.ch417

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Abstract

Virtual Reality applications strive to simulate real or imaginary scenes with which users can interact and perceive the effects of their actions in real time. Adding haptic information such as vibration, tactile array, and force feedback enhances the sense of presence in virtual environments. Haptics interfaces present new challenges in the situation where it is crucial for the operators to touch, grasp and manipulate rigid/soft objects in the immersive virtual worlds. Soft-touch haptics modeling is the core component in feeling and manipulating dynamic objects within the virtual environments. For adding the haptic sensations with interactive soft objects, the authors first present multiple force-reflecting dynamics in Loop subdivision surfaces, and further the haptic freeform deformation of soft objects through mass-spring Bezier volume lattice. The haptic constraint modeling based on metaballs is experimented to intuitively control the interactive force distribution within the dynamically constructed constraint, making the soft-touch simulation of objects simple to manipulate with enhanced realism.

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