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  • Virtual Sculpting with Haptic Displacement Maps

Proceedings: GI 2002

Virtual Sculpting with Haptic Displacement Maps

Robert Jagnow, Julie Dorsey

Proceedings of Graphics Interface 2002: Calgary, Alberta, Canada, 27 - 29 May 2002, 125-132

DOIhttps://doi.org/10.20380/GI2002.15
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  • BibTeX

    @inproceedings@inproceedings{Jagnow:VSH:2002,
     title = {Virtual Sculpting with Haptic Displacement Maps},
     author = {Robert Jagnow and Julie Dorsey},
     booktitle = (Proceedings of the Graphics Interface 2002 Conference, May 27-29, 2002, Calgary, Alberta, Canada},
     url = {http://graphicsinterface.org/wp-content/uploads/gi2002-15.pdf},
     year = {2002},
     month = {May},
     location = {Calgary, Alberta},
     pages = {125--132}
    }
    

Abstract

This paper presents an efficient data structure that facilitates high-speed haptic (force feedback) interaction with detailed digital models. Models are partitioned into coarse slabs, which collectively define a piecewise continuous vector field over a thick volumetric region surrounding the surface of the model. Within each slab, the surface is represented as a displacement map, which uses the vector field to define a relationship between points in space and corresponding points on the model's surface. This representation facilitates efficient haptic interaction without compromising the visual complexity of the scene. Furthermore, the data structure provides a basis for interactive local editing of a model's color and geometry using the haptic interface. We describe implementation details and demonstrate the use of the data structure with a variety of digital models.

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