Non-Realistic Haptic Feedback for Virtual Sculpture
نویسندگان
چکیده
The sense of feeling can effectively be used to enforce virtual artistic activities like virtual sculpting or modeling. In this paper, we describe how a virtual sculpture system has been extended with haptical feedback. In practice, we use the scalar field defining the implicit surface being modeled to efficiently compute several type of force feedback. We present a method for combining these forces differently depending whether the user is just touching his artwork or editing it by adding virtual matter. This technique enforces the interactivity of the task and leads to an enhanced non-tactorealistic feedback that increases the usability of the sculpture tool. The well-known problem of stability of the haptic feedback is also addressed in the particular case of implicit surface, in a new, simple and efficient manner. Key-words: virtual sculpture, haptic interaction, non-realistic haptic feedback Ce travail a été effectué au sein de l’ancien projet iMAGIS, projet commun CNRS, INRIA, Institut National Polytechnique de Grenoble et Université Joseph Fourier, dont les projets EVASION et ARTIS sont issus. ∗ Laboratoire de Recherche en Informatique & INRIA Futurs – projet InSitu, Pôle Commun de Recherche en Informatique du plateau de saclay, CNRS, École Polytechnique, INRIA, Université Paris-Sud. † Digisens SA http://www.digisens.fr ‡ projet EVASION, INRIA Rhone-Alpes et Laboratoire GRAVIR/IMAG, laboratoire commun CNRS, Institut National Polytechnique de Grenoble, INRIA et Université Joseph Fourier. § projet ARTIS, INRIA Rhone-Alpes et Laboratoire GRAVIR/IMAG, laboratoire commun CNRS, Institut National Polytechnique de Grenoble, INRIA et Université Joseph Fourier. Rendu haptique non-réaliste pour la sculpture virtuelle Résumé : L’utilisation du sens du toucher permet de faciliter les activités artistiques virtuelles comme la sculpture ou le modelage virtuel. Dans ce rapport, nous décrivons comment un système de sculpture virtuelle a été augmenté grâce au rendu haptique. En pratique, nous utilisons le champs de potentiel scalaire définissant la surface implicite modelée pour calculer différents types de forces. Nous présentons une méthode qui permet de combiner ces forces de manières différentes suivant que l’artiste ne fait que toucher sa création ou qu’il la modifie en ajoutant de la matière virtuelle. Cette technique renforce l’interactivité de la tâche et crée un rendu haptique non-réaliste qui améliore l’utilisabilité de l’outil de sculpture. Le problème classique de la stabilité du rendu haptique est résolu dans le cas particulier des surfaces implicites d’une manière nouvelle, simple et efficace. Mots-clés : sculpture virtuelle, interaction haptique, rendu haptique non-réaliste Non-Realistic Haptic Feedback for Virtual Sculpture 3
منابع مشابه
The Visualisation and Making of Sculpture and its Potential Implications for Computer Interfaces and Three-dimensional Modelling
The deep tacit knowledge of material, tool and creative process, developed over many years of professional practice as a sculptor or applied artist is examined and outlines of an analysis of ‘sensory feedback loops’ present in a specific making process are described. The significance and role of the sense of touch within the development of ‘making’ skill is discussed in relation to ‘embodiment’...
متن کاملA Movement Based Method for Haptic Interaction
An abundance of haptic rendering schemes have been developed to help further presence and immersion in virtual environments. Increasing realism is the main driving force behind this development. Schemes have progressed from simple one-dimensional springs to six degree of freedom particle models, with a wealth of surface and material properties. Because of their relative unimportance, haptic ren...
متن کاملHaptic Exploration of Virtual Buildings Using Non-realistic Haptic Rendering
This paper argues that the goal of reducing the differences between features within a 3D model and the use of 3D haptic space of the force feedback device is not necessarily desirable. We present the idea of a non-realistic haptic rendering system. We examine in detail the mapping of 3D data structures onto 3D haptic space and show the use of information layers which are based on a logical deco...
متن کاملRealistic Haptics Interaction in Complex Virtual Environments
Simulating interactive behavior of objects such as soft tissues in surgical simulation or in control engine of VR applications has been extensively studied. Adding haptic information such as vibration, tactile array, force feedback simulation enhances the sense of presence in virtual environments. Recreating the realistic contact forces the user would perceive when interacting the virtual objec...
متن کاملVirSculpt: a virtual sculpting environment
We describe a virtual sculpture environment suited to the needs of artists. In this approach, the user is immersed in a virtual environment by the use of haptic devices and immersive display. The project is focused around four main research topics: the sculpture model, the tools and their actions on the model, the display of the sculpture, and the interface between the artist and its virtual wo...
متن کامل