Sculpting Polygonal Models using Virtual Tools
نویسنده
چکیده
We describe a sculpting system for designing free-form polygonal models using virtual sculpting tools and mesh refinement operations. Virtual tools are geometric objects with shapes described by superquadric equations. The user controls a virtual tool to sculpt a free-form polygonal model starting from a mesh. The vertices of the mesh respond to a tool in a semi-realistic manner, allowing the user to push, pull , and deform the mesh in a variety of ways. Mesh refinement operations allow the user to control refinement levels and create smooth objects. Interactive shadows and a virtual trackball considerably enhance the intuitive manipulation and sculpting of models . The strength of the system has been demonstrated by sculpting freeform surfaces such as a dog, a fish, a banana slug, and a dinosaur, all with widely varying levels of detail.
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