Three-dimensional morphing using computer graphics
Techniques that transform one object shape into another object shape have been used extensively in two dimensional graphics by animators in entertainment, education, and communication. These techniques have used image processing algorithms to complete the two dimensional transformation. Recently, however, these techniques have been modified or enhanced to transform or "morph" pairs of three dimensional objects as opposed to the images of the objects. This three dimensional extension gives the ability to view the transformation from different points of view as well as the ability to animate the objects independently of the transformation. As opposed to image processing techniques, these three dimensional techniques typically employ three dimensional image generation algorithms using computer graphics. This paper describes a method to use a computer image generator to support the three dimensional transformation of two unrelated polyhedral models. This algorithm employs both the topology (vertex/edge/face network) and geometry from the original models in establishing vertex, edge, and face correspondences between the models. At conclusion, the two unrelated models have been merged into a common topology that can be used to transform the object from one shape to the other through the interpolation of the vertex positions. Since the original topologies are a major factor in creating the merged topology, the transformation maintains its connectivity at all the intermediate steps of the transformation.
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Master of Science (M.S.)
College of Engineering
Length of Campus-only Access
Masters Thesis (Open Access)
Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic
Mang, Michael Andrew, "Three-dimensional morphing using computer graphics" (1994). Retrospective Theses and Dissertations. 3482.