Geometric manipulation of tensor product surfaces
I3D '92 Proceedings of the 1992 symposium on Interactive 3D graphics
Curves and surfaces for computer aided geometric design (3rd ed.): a practical guide
Curves and surfaces for computer aided geometric design (3rd ed.): a practical guide
Proceedings of the conference on Graphics interface '97
Hierarchical B-spline refinement
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
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Surface pasting allows the insertion of local detail to a tensor product surface without challenging the structure of the underlying surface. It works by applying feature surfaces on top of a base surface to create a composite surface. Previous modeling systems for pasted surfaces only allowed users to translate, rotate, and resize pasted features, and did not support direct manipulation. In this paper, we describe a method for the direct manipulation of pasted surfaces that allows the user to edit a surface at any level in the pasting hierarchy.