About

I am a research engineer at the Realistic Graphics Lab at EPFL in Switzerland working with Wenzel Jakob on the Mitsuba 3 renderer. I graduated with a Master's in Computer Science from EPFL in 2018 and have been interested in Computer Graphics since 2015. I had the chance to join Christophe Hery and do two internships at Pixar, mainly working on implementing state-of-the-art methods in their production renderer, RenderMan. In 2018, I joined Weta Digital in New Zealand. First as an intern, working on my Master's thesis under the supervision of Andrea Weidlich. Later I became a Rendering Researcher, working on Manuka, Weta's in-house production renderer. In 2019 I moved back to Switzerland and joined the Realistic Graphics Lab at EPFL, working on the Mitsuba 3 renderer and other research projects in differentiable rendering.

Work experience

Projects

Mitsuba 3

Mitsuba 3 is a rendering system for forward and inverse light transport simulation.

• Project page
• Code
• Documentation

Dr.Jit: A Just-In-Time Compiler for Differentiable Rendering

Wenzel Jakob, Sébastien Speierer, Nicolas Roussel, Delio Vicini.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2022.

• Project page
• Paper

Differentiable Signed Distance Function Rendering

Delio Vicini, Sébastien Speierer, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2022.

• Project page
• Paper

Monte Carlo Estimators for Differential Light Transport

Tizian Zeltner, Sébastien Speierer, Iliyan Georgiev, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2021.

• Project page
• Paper

Path Replay Backpropagation: Differentiating Light Paths using Constant Memory and Linear Time

Delio Vicini, Sébastien Speierer, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2021.

• Project page
• Paper

Wide-Depth-Range 6D Object Pose Estimation in Space

Yinlin Hu, Sébastien Speierer, Wenzel Jakob, Pascal Fua, Mathieu Salzmann.

IEEE/CVF Conference on Computer Vision and Pattern Recognition (Proceedings of CVPR), 2021.

• Project page
• Paper

Method for improved handling of texture data for texturing and other image processing tasks

Kimball D. Thurston, III, Luca Fascione, Sébastien Speierer.

U.S. Patent, Unity Technologies SF, 2021.

• Patent page

Radiative Backpropagation: An Adjoint Method for Lightning-Fast Differentiable Rendering

Merlin Nimier-David, Sébastien Speierer, Benoît Ruiz, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2020.

• Project page
• Paper

Spatially-varying specular microstructures and reflectance filtering in a production renderer

Sébastien Speierer, Andrea Weidlich, Wenzel Jakob.

Master's thesis (Weta Digital), 2018.

• PDF

Caustic Connection Strategies for Bidirectional Path Tracing

Sébastien Speierer, Christophe Hery, Ryusuke Villemin, Wenzel Jakob.

Pixar Technical Memo, 2018.

• Project page
• Paper

Metropolis Virtual Point Light Rendering

Sébastien Speierer, Wenzel Jakob.

Semester project (RGL), 2016.

• PDF