Patch Decomposition for Efficient Mesh Contours Extraction

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dc.contributor.authorTsiapkolis, Panagiotisen_US
dc.contributor.authorBénard, Pierreen_US
dc.contributor.editorGarces, Elenaen_US
dc.contributor.editorHaines, Ericen_US
dc.date.accessioned2024-06-25T10:20:06Z
dc.date.available2024-06-25T10:20:06Z
dc.date.issued2024
dc.description.abstractObject-space occluding contours of triangular meshes (a.k.a. mesh contours) are at the core of many methods in computer graphics and computational geometry. A number of hierarchical data-structures have been proposed to accelerate their computation on the CPU, but they do not map well to the GPU for real-time applications, such as video games. We show that a simple, flat data-structure composed of patches bounded by a normal cone and a bounding sphere may reach this goal, provided it is constructed to maximize the probability for a patch to be culled over all viewpoints. We derive a heuristic metric to efficiently estimate this probability, and present a greedy, bottom-up algorithm that constructs patches by grouping mesh edges according to this metric. In addition, we propose an effective way of computing their bounding sphere. We demonstrate through extensive experiments that this data-structure achieves similar performance as the state-of-the-art on the CPU but is also perfectly adapted to the GPU, leading to up to ×5 speedups.en_US
dc.description.number4
dc.description.sectionheadersStylization
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume43
dc.identifier.doi10.1111/cgf.15154
dc.identifier.issn1467-8659
dc.identifier.pages11 pages
dc.identifier.urihttps://doi.org/10.1111/cgf.15154
dc.identifier.urihttps://diglib.eg.org/handle/10.1111/cgf15154
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectCCS Concepts: Computing methodologies → Rendering; Visibility
dc.subjectComputing methodologies → Rendering
dc.subjectVisibility
dc.titlePatch Decomposition for Efficient Mesh Contours Extractionen_US
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