Research

See also Grenoble Graphics publication page.

2023
	Iterative 𝛼-(de)Blending: a Minimalist Deterministic Diffusion Model Eric Heitz, Laurent Belcour and Thomas Chambon ACM SIGGRAPH 2023 (conference track) the project page
	The Energy Distance as a Replacement for the Reconstruction Loss in Conditional GANs Eric Heitz and Thomas Chambon JCGT 2023 the project page
2022
	Bringing Linearly Transformed Cosines to Anisotropic GGX Aakash KT, Eric Heitz, Jonathan Dupuy and P. J. Narayanan I3D 2022 the project page
2021
	Passing Multi-Channel Material Textures to a 3-Channel Loss Thomas Chambon, Eric Heitz and Laurent Belcour ACM SIGGRAPH Talk 2021 the project page
	Lessons Learned and Improvements when Building Screen-Space Samplers with Blue-Noise Error Distribution Laurent Belcour and Eric Heitz ACM SIGGRAPH Talk 2021 the project page
	A Sliced Wasserstein Loss for Neural Texture Synthesis Eric Heitz, Kenneth Vanhoey, Thomas Chambon, Laurent Belcour CVPR 2021 the paper and the code
2020
	Can’t Invert the CDF? The Triangle-Cut Parameterization of the Region under the Curve Eric Heitz EGSR 2020 (Best Paper Award) the project page
2019
	Integration and Simulation of Bivariate Projective-Cauchy Distributions within Arbitrary Polygonal Domains Jonathan Dupuy, Laurent Belcour and Eric Heitz Technical report 2019 Video and code
	Distributing Monte Carlo Errors as a Blue Noise in Screen Space by Permuting Pixel Seeds Between Frames Eric Heitz and Laurent Belcour EGSR 2019 (Best Paper Award) the project page
	A Low-Discrepancy Sampler that Distributes Monte Carlo Errors as a Blue Noise in Screen Space Eric Heitz, Laurent Belcour, Victor Ostromoukhov, David Coeurjolly and Jean-Claude Iehl ACM SIGGRAPH Talk 2019 the project page
	Procedural Stochastic Textures by Tiling and Blending Thomas Deliot and Eric Heitz GPU Zen 2 the project page
	A Low-Distortion Map Between Triangle and Square Eric Heitz Technical report 2019 the project page
2018
	Sampling the GGX Distribution of Visible Normals Eric Heitz JCGT the project page
	Real-Time Ray Tracing of Correct* Soft Shadows Stephen Hill, Morgan McGuire and Eric Heitz ACM SIGGRAPH Courses 2018: Advances in Real-Time Rendering in Games the slides
	High-Performance By-Example Noise using a Histogram-Preserving Blending Operator Eric Heitz and Fabrice Neyret HPG 2018 (Best Paper Award) the project page
	Combining Analytic Direct Illumination and Stochastic Shadows Eric Heitz, Stephen Hill and Morgan McGuire I3D 2018 short paper (Best Paper Presentation Award) the project page
	Generating Random Segments from Non-Uniform Distributions Eric Heitz Technical report 2018
	A note on track-length sampling with non-exponential distributions Eric Heitz and Laurent Belcour Technical report 2018
2017
	Microfacet-based Normal Mapping for Robust Monte Carlo Path Tracing Vincent Schüssler, Eric Heitz, Johannes hanika and Carsten Dachsbacher ACM SIGGRAPH ASIA 2017 the paper, supplemental, Mitsuba code and video
	Real-Time Line- and Disk-Light Shading with Linearly Transformed Cosines Eric Heitz and Stephen Hill ACM SIGGRAPH Courses 2017: Physically Based Shading in Theory and Practice the project page
	A Spherical Cap Preserving Parameterization for Spherical Distributions Jonathan Dupuy, Eric Heitz and Laurent Belcour ACM SIGGRAPH 2017 the project page
	Linear-Light Shading with Linearly Transformed Cosines Eric Heitz and Stephen Hill Book chapter in GPU Zen the project page
	Analytical Calculation of the Solid Angle Subtended by an Arbitrarily Positioned Ellipsoid to a Point Source Eric Heitz Nuclear Instruments and Methods in Physics Research
	Implementation and realization of Petros Vrellis’ knitting Eric Heitz Christmas vacation project 2017
	Notes on optimal approximations for importance sampling Jacopo Pantaleoni and Eric Heitz Technical report 2017
	Computing a front-facing ellipse that subtends the same solid angle as an arbitrarily oriented ellipse Eric Heitz Technical report 2017
	A Simpler and Exact Sampling Routine for the GGX Distribution of Visible Normals Eric Heitz Technical report 2017
	Geometric Derivation of the Irradiance of Polygonal Lights Eric Heitz Technical report 2017
2016
	Real-Time Area Lighting: a Journey from Research to Production Stephen Hill and Eric Heitz ACM SIGGRAPH Courses 2016: Advances in Real-Time Rendering in Games the project page
	Real-Time Polygonal-Light Shading with Linearly Transformed Cosines Eric Heitz, Jonathan Dupuy, Stephen Hill and David Neubelt ACM SIGGRAPH 2016 the project page
	Additional Progress Towards the Unification of Microfacet and Microflake Theories Jonathan Dupuy, Eric Heitz and Eugene d’Eon EGSR 2016 (Experimental Ideas & Implementations track) the slides
	Multiple-Scattering Microfacet BSDFs with the Smith Model Eric Heitz, Johannes Hanika, Eugene d’Eon and Carsten Dachsbacher ACM SIGGRAPH 2016 the project page
2015
	The SGGX Microflake Distribution Eric Heitz, Jonathan Dupuy, Cyril Crassin and Carsten Dachsbacher ACM SIGGRAPH 2015 the supplemental material with detailed derivations and our C implementation and the slides
	Extracting Microfacet-based BRDF Parameters from Arbitrary Materials with Power Iterations Jonathan Dupuy, Eric Heitz, Jean-Claude Iehl, Pierre Poulin and Victor Ostromoukhov EGSR 2015 the supplemental material, the code and the slides
	Implementing a Simple Anisotropic Rough Diffuse Material with Stochastic Evaluation Eric Heitz and Jonathan Dupuy Technical report 2015 the Mitsuba plugin
	Generating Procedural Beckmann Surfaces Eric Heitz Technical report 2015
2014
	Importance Sampling Microfacet-Based BSDFs using the Distribution of Visible Normals Eric Heitz and Eugene d’Eon EGSR 2014 (Best Paper Award) supplemental1 and supplemental2 with C implementation and the slides
	Understanding the Masking-Shadowing Function in Microfacet-Based BRDFs Eric Heitz JCGT 2014 the slides
	Physically Based Shading in Theory and Practice Stephen Hill, Stephen Mcauley, Jonathan Dupuy, Yoshiharu Gotanda, Eric Heitz, Naty Hoffman, Sébastien Lagarde, Anders Langlands, Ian Megibben, Farhez Rayani and Charles De Rousiers ACM SIGGRAPH Courses 2014
	Filtering Non-Linear Transfer Functions on Surfaces Eric Heitz, Derek Nowrouzezahrai, Pierre Poulin and Fabrice Neyret IEEE TVCG 2014
2013
	Linear Efficient Antialiased Displacement and Reflectance Mapping Jonathan Dupuy, Eric Heitz*, Jean-Claude Iehl, Pierre Poulin, Fabrice Neyret and Victor Ostromoukhov joint first authors ACM SIGGRAPH Asia 2013
	Filtering Color Mapped Textures and Surfaces Eric Heitz, Derek Nowrouzezahrai, Pierre Poulin and Fabrice Neyret I3D 2013 (Best Paper Award)
	Correlation effect between transmitter and receiver azimuthal directions on the illumination function from a random rough surface Eric Heitz, Christophe Bourlier and Nicolas Pinel WRCM 2013
	Representing Appearance and Pre-filtering Subpixel Data in Sparse Voxel Octrees Eric Heitz and Fabrice Neyret HPG 2012 (Best Paper Award)
2010
	Adaptive GPU Ray Casting Based on Spectral Analysis Stefan Suwelack, Eric Heitz, Roland Unterhinninghofen and Rüdiger Dillmann MIAR 2010