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In Proceedings of Graphics Interface

Sheared Polygonal Texture Filtering

Guowei Lu, Jerry Guo, Petr Kellnhofer, and Elmar Eisemann

Our Sheared Polygonal Texture Filtering (SPTF) demonstrates superior filtering accuracy compared to hardware- accelerated Anisotropic filtering (ANISO16) at a lower computational cost in comparison to Elliptical Weighted Average (EWA).

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Efficient and precise texture filtering is essential in various applications. However, there is often a trade-off between coarse real-time approximations and accurate computationally expensive supersampling. We introduce a novel efficient texture-filtering method over arbitrary quadrilateral footprints, achieving high accuracy at a low computational cost. We achieve this by pre-computing integration tables that sparsely sample the space of possible footprints. Finally, we compare the qualitative and computational performance of our method to commonly used techniques and demonstrate various applications for high-quality real-time image synthesis, including normal filtering, soft shadow mapping, and glint rendering.

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Citation

Guowei Lu, Jerry Guo, Petr Kellnhofer, and Elmar Eisemann, Sheared Polygonal Texture Filtering, In Proceedings of Graphics Interface, pp. 19:1–19:7, 2024.

BibTex 

@inproceedings{bib:lu:2024,
    author       = { Lu, Guowei and Guo, Jerry and Kellnhofer, Petr and Eisemann, Elmar },    
    title        = { Sheared Polygonal Texture Filtering },
    booktitle    = { In Proceedings of Graphics Interface },
    year         = { 2024 },
    pages        = { 19:1--19:7 },
    doi          = { 10.1145/3670947.3670952 },
    dblp         = { conf/graphicsinterface/LuGKE24 },
    url          = { https://publications.graphics.tudelft.nl/papers/25 },
}