Computer Graphics Forum
Volume22, Issue 3 (September 2003)

Field Functions for Blending Range Controls on Soft Objects

Authors:

P. C. Hsu
1Department of Computer Science and Engineering, National Sun-Yat-Sun University, Kaohsiung, Taiwan.

C. Lee
1Department of Computer Science and Engineering, National Sun-Yat-Sun University, Kaohsiung, Taiwan.

Summary:

This paper proposes new field functions that have adjustable inner radius and outer radius of influence. Incorporatingthe proposed field functions with soft object modeling, soft blending, Ricci's super-ellipsoid blends, Perlin'sset operations, and R-functions, etc. can have blending range controls by adjusting the inner and the outer radiiof influence of given field functions. As a result, the sizes of the resulting blending surfaces on soft objects willnot be restricted by the sizes of the blended primitive soft objects and can be enlarged and shrunk freely withoutdeforming the overall shapes of blended primitive soft objects. In addition, a small soft object can have a largeblending region, and a large one can have a small blending region

Categories and Subject Descriptors (according to ACM CCS): I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling - Curve, surface, solid and object representations

Keywords:
Implicit surfaces, Soft objects, Field functions

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