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Passing Multi-Channel Material Textures to a 3-Channel Loss

Autor: Eric Heitz, Laurent Belcour, Thomas Chambon

Publikováno v: SIGGRAPH Talks

Our objective is to compute a textural loss that can be used to train texture generators with multiple material channels typically used for physically based rendering such as albedo, normal, roughness, metalness, ambient occlusion, etc. Neural textur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bacb2eba840c599adc34e144811177e9

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Lessons Learned and Improvements when Building Screen-Space Samplers with Blue-Noise Error Distribution

Autor: Laurent Belcour, Eric Heitz

Publikováno v: SIGGRAPH Talks

Recent work has shown that the error of Monte-Carlo rendering is visually more acceptable when distributed as blue-noise in screen-space. Despite recent efforts, building a screen-space sampler is still an open problem. In this talk, we present the l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0817e952ab2d1e72cf3077004fd0e2b5

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A Sliced Wasserstein Loss for Neural Texture Synthesis

Autor: Laurent Belcour, Eric Heitz, Kenneth Vanhoey, Thomas Chambon

Publikováno v: CVPR

We address the problem of computing a textural loss based on the statistics extracted from the feature activations of a convolutional neural network optimized for object recognition (e.g. VGG-19). The underlying mathematical problem is the measure of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aabd43de9f618286f37a207489aa710

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High-Performance By-Example Noise using a Histogram-Preserving Blending Operator

Autor: Eric Heitz, Fabrice Neyret

Publikováno v: Proceedings of the ACM on Computer Graphics and Interactive Techniques
Proceedings of the ACM on Computer Graphics and Interactive Techniques, ACM, 2018, ACM SIGGRAPH / Eurographics Symposium on High-Performance Graphics 2018, 1 (2), pp.Article No. 31:1-25. ⟨10.1145/3233304⟩
Proceedings of the ACM on Computer Graphics and Interactive Techniques, 2018, ACM SIGGRAPH / Eurographics Symposium on High-Performance Graphics 2018, 1 (2), pp.Article No. 31:1-25. ⟨10.1145/3233304⟩

We propose a new by-example noise algorithm that takes as input a small example of a stochastic texture and synthesizes an infinite output with the same appearance. It works on any kind of random-phase inputs as well as on many non-random-phase input

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1beb2a724a2c38d304b377838b84b9f
https://doi.org/10.1145/3233304

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Microfacet-based normal mapping for robust Monte Carlo path tracing

Autor: Vincent Schüssler, Carsten Dachsbacher, Eric Heitz, Johannes Hanika

Publikováno v: ACM Transactions on Graphics. 36:1-12

Normal mapping enhances the amount of visual detail of surfaces by using shading normals that deviate from the geometric normal. However, the resulting surface model is geometrically impossible and normal mapping is thus often considered a fundamenta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7100cc15bd1302cd51ab1ddc066fecdb
https://doi.org/10.1145/3130800.3130806

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Analytical calculation of the solid angle subtended by an arbitrarily positioned ellipsoid to a point source

Autor: Eric Heitz

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 852:10-14

We present a geometric method for computing an ellipse that subtends the same solid-angle domain as an arbitrarily positioned ellipsoid. With this method we can extend existing analytical solid-angle calculations of ellipses to ellipsoids. Our idea c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4060762c30cf91c4630bef4351f7f01a
https://doi.org/10.1016/j.nima.2017.02.004

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Distributing Monte Carlo Errors as a Blue Noise in Screen Space by Permuting Pixel Seeds Between Frames

Autor: Laurent Belcour, Eric Heitz

Recent work has shown that distributing Monte Carlo errors as a blue noise in screen space improves the perceptual quality of rendered images. However, obtaining such distributions remains an open problem with high sample counts and high-dimensional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc10d0f61b058c6b24f3cd5ceb7d0031
https://hal.archives-ouvertes.fr/hal-02158423

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Multiple-scattering microfacet BSDFs with the Smith model

Autor: Carsten Dachsbacher, Johannes Hanika, Eric Heitz, Eugene d'Eon

Publikováno v: ACM Transactions on Graphics. 35:1-14

Modeling multiple scattering in microfacet theory is considered an important open problem because a non-negligible portion of the energy leaving rough surfaces is due to paths that bounce multiple times. In this paper we derive the missing multiple-s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b649c7fb657de93334c2286a6f936f1
https://doi.org/10.1145/2897824.2925943

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Real-time polygonal-light shading with linearly transformed cosines

Autor: Eric Heitz, David Neubelt, Jonathan Dupuy, Stephen Hill

Publikováno v: ACM Transactions on Graphics. 35:1-8

In this paper, we show that applying a linear transformation---represented by a 3 x 3 matrix---to the direction vectors of a spherical distribution yields another spherical distribution, for which we derive a closed-form expression. With this idea, w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7914a96a2b1cfc3f69b84283c15aacbe
https://doi.org/10.1145/2897824.2925895

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