Constrained curve surface deformation model based on metaball

被引：0
作者：
State Key Laboratory of CAD and CG, Zhejiang University, Hangzhou 310027, China [1 ]
机构：
[1] State Key Laboratory of CAD and CG, Zhejiang University
来源：
Jisuanji Yanjiu yu Fazhan | 2006年 / 4卷 / 688-694期
关键词：
Convolution; Curve surface deformation; Field function; Metaball; Skeleton;
D O I：
10.1360/crad20060418
中图分类号：
学科分类号：
摘要：
Combining the curve surface deformation technique and the metaball method, a metaball based curve surface constrained deformation model is presented. The field function of metaball expresses the restriction of curve surface deformation that is applied on the surface. Regulation of the parameters of the field function can master the desired deformation result. The parameters include the field function type, the center, the effect radius and the displacement of metaball. Convolution from skeleton achieves smooth surface. Some issues concerning curve surface deformation are discussed in this paper, such as relationship between constraints, the effect of single constraint, to control the influence of other constraint, etc. Several samples illustrate the mechanism and application in the curve surface modeling and soft surface simulating of the model.
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页码：688 / 694
页数：6
相关论文
共 12 条
  • [1] Terzopoulos D., Qin H., Dynamic NURBS with geometric constraints for interactive sculpture, ACM Trans. Graphics, 13, 2, pp. 103-136, (1994)
  • [2] Terzopoulos D., Artificial life for computer graphics, Communication of the ACM, 42, 8, pp. 32-42, (1999)
  • [3] Faloutsos P., van de Panne M., Terzopoulos D., Dynamic free-form deformations for animation synthesis, IEEE Trans. Visualization and Computer Graphics, 3, 3, pp. 201-214, (1997)
  • [4] Nishita T., Nakamae E., A method for displaying metaballs by using Bezier clipping, Computer Graphics Forum, 13, 3, pp. 271-280, (1994)
  • [5] Dobashi Y., Kaneda K., Yamashita H., A simple, efficient method for Realistic Animation of Clouds, Proc. SIGGRAPH2000, pp. 19-28, (2000)
  • [6] Wyvill B., Guy A., Galin E., Extending the CSG tree: Warping, blending and Boolean operations in an implicit surface modeling systems, Computer Graphics Forum, 18, 2, pp. 128-136, (1999)
  • [7] Sealy G., Wyvill G., Smoothing of three dimensional models by convolution, Computer Graphics International'96, (1996)
  • [8] Wyvill B., Overveld K., Polygonization of implicit surfaces with constructive solid geometry, Journal of Shape Modeling, 2, 4, pp. 257-273, (1997)
  • [9] Jin X., Tai C.-L., Analytical methods for polynomial weighted convolution surfaces with various kernels, Computers and Graphics, 26, 3, pp. 437-447, (2002)
  • [10] Jin X., Peng Q., General constrained deformation based on generalized metaballs, Journal of Software, 9, 9, pp. 677-682, (1998)
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