High-Performance Graphics 2022
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Browsing High-Performance Graphics 2022 by Author "Dupuy, Jonathan"
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Item Htex: Per-Halfedge Texturing for Arbitrary Mesh Topologies(ACM Association for Computing Machinery, 2022) Barbier, Wilhem; Dupuy, Jonathan; Josef Spjut; Marc Stamminger; Victor ZordanWe introduce per-halfedge texturing (Htex) a GPU-friendly method for texturing arbitrary polygon-meshes without an explicit parameterization. Htex builds upon the insight that halfedges encode an intrinsic triangulation for polygon meshes, where each halfedge spans a unique triangle with direct adjacency information. Rather than storing a separate texture per face of the input mesh as is done by previous parameterization-free texturing methods, Htex stores a square texture for each halfedge and its twin.We show that this simple change from face to halfedge induces two important properties for high performance parameterization-free texturing. First, Htex natively supports arbitrary polygons without requiring dedicated code for, e.g, non-quad faces. Second, Htex leads to a straightforward and efficient GPU implementation that uses only three texture-fetches per halfedge to produce continuous texturing across the entire mesh. We demonstrate the effectiveness of Htex by rendering production assets in real time.