Interactive Specification of 3D Displacement Vectors using Arcball
نویسندگان
چکیده
Direct interactive manipulation of 3D objects is very important in Computer Graphics. The user interface to deal with this problem poses a difficult problem because of the high number of degrees of freedom involved, associated with the loss of depth in the viewing projection. This paper introduces a new technique to specify displacement vectors in the three-dimensional space. The technique is built on top of the arcball interface introduced in [7]. In fact, it constitutes a novel use of the arcball. We also discuss an implementation of the proposed technique in an interactive interface to specify displacement vectors in a widget for surface warping in 3D space. Category: Human Computer Interface.
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