منابع مشابه
Revisiting Adaptively Sampled Distance Fields
Introduction Implicit surfaces are a powerful shape description for many applications in computer graphics. An implicit surface is defined by a function f :R → R as the set of points satisfying f(p) = 0. Implicit representation becomes more effective when f is a signed distance function, i.e., when |f | gives the distance to the closest point on the surface and f is negative inside the object a...
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Many models used in real-time graphics applications are generated automatically using techniques such as laser-range scanning. The resultant meshes typically contain one or more orders of magnitude more polygons than can be displayed by today’s graphics hardware. Numerous methods have been proposed for automatically creating level-of-detail (LOD) meshes from large input meshes. These techniques...
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In this paper we present an efficient method to compute the signed distance field for a large triangle mesh, which can run interactively with GPU accelerated. Restricted by absence of flexible pointer addressing on GPU, we design a novel multi-layer hash table to organize the voxel/triangle overlap pairs as two-tuples, such strategy provides an efficient way to store and access. Based on the ge...
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We present a method for sampling, structuring and reconstructing progressively re ned images e ectively. This has direct applications to progressive re nement of the result of slow renderers, such as ray tracers, and to the progressive transmission of images on slow media, as in world wide web browsers. Sampling images adaptively with respect to frequency at the back end provides a more compact...
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ژورنال
عنوان ژورنال: ACM Transactions on Graphics
سال: 2007
ISSN: 0730-0301,1557-7368
DOI: 10.1145/1276377.1276437