Abstract. We present a novel method for texture synthesis on surfaces from examples. We consider a very general type of textures, including color, transparency and displacements. Our method synthesizes the texture directly on the surface, rather than synthesizing a texture image and then mapping it to the surface. The synthesized textures have the same qualitative visual appearance as the example texture, and cover the surfaces without the distortion or seams of conventional texture-mapping. We describe two synthesis methods, based on the work of Wei and Levoy and Ashikhmin; our techniques produce similar results, but directly on surfaces.
Cutting and pasting to combine different elements into a common structure are widely used operations that have been successfully adapted to many media types. Surface design could also benefit from the availability of a general, robust, and efficient cut-andpaste tool, especially during the initial stages of design when a large space of alternatives needs to be explored. Techniques to support cut-and-paste operations for surfaces have been proposed in the past, but have been of limited usefulness due to constraints on the type of shapes supported and the lack of real-time interaction. In this paper, we describe a set of algorithms based on multiresolution subdivision surfaces that perform at interactive rates and enable intuitive cut-and-paste operations.
In this paper we describe a method for computing approximate results of boolean operations (union, intersection, difference) applied to free-form solids bounded by multiresolution subdivision surfaces.We present algorithms for generating a control mesh for a multiresolution surface approximating the result, optimizing the parameterization of the new surface with respect to the original surfaces, and fitting the new surface to the geometry of the original surfaces. Our algorithms aim to minimize the size and optimize the quality of the new control mesh. The original control meshes are modified only in a neighborhood of the intersection.While the main goal is to obtain approximate results, highaccuracy approximations are also possible at additional computational expense, if the topology of the intersection curve is resolved correctly.
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