期刊名称：International Journal of Computer Information Systems and Industrial Management Applications
印刷版ISSN：2150-7988
电子版ISSN：2150-7988
出版年度：2011
卷号：3
页码：568-577
出版社：Machine Intelligence Research Labs (MIR Labs)
摘要：In a virtual sculpture project, we w ould like to sculpt in real-time 3D objects sampled in volume elements (voxels). The drawback of this kind of representation is that a very huge number of voxels is required to represent large and detailed objects. Consequently, the memory cost will be very large and the user/object interaction will be slow ed down. We proposed a multiresolution representation of 3D objects thanks to a 3D w avelet transform, in order to reduce the memory cost and to adapt the processing and display times with a desired level of detail. In order to allow real-time performance during the sculpting process, w e propose in this paper a repartition structure, w hich is an octree w hose each node contains maximal and minimal density for each area of the 3D object. Moreover, we combine this structure with a multiresolution collision detection, to accelerate the sculpting process during the addition and subtraction of matter into the 3D object thanks to a tool, both with the same multiresolution representation.
