Christoph Lassner
Co-founder of World Labs; author of the Pulsar sphere-based renderer used as a PyTorch3D backend
- Co-founder, World Labs12
Christoph Lassner is a co-founder of World Labs. Lassner's work centers on interactive virtual representations of the physical world that can be optimized and rendered efficiently, with a focus on perception and rendering systems for humans. Before World Labs, Lassner led research teams at Epic Games and Meta Reality Labs Research, and wrote the Pulsar renderer, now the sphere-based rendering backend of PyTorch3D.12
Career
Lassner completed a PhD at the Bernstein Center for Computational Neuroscience and the Max Planck Institute for Intelligent Systems. Before joining Meta, Lassner worked at Body Labs, a startup later acquired by Amazon. Lassner created the human pose estimation system for Amazon Halo, part of a system for building a 3D body model with a smartphone.1
Lassner later led research teams at Meta Reality Labs Research and at Epic Games. At Meta, the team's work on reconstructing and rendering radiance fields interactively was shown at Meta Connect 2022. Lassner is now a co-founder of World Labs, which names Lassner among its founders with Fei-Fei Li, Justin Johnson and Ben Mildenhall.12
Research and software
Lassner's research covers neural rendering and dynamic scene reconstruction, including Non-Rigid Neural Radiance Fields (2020) and Neural 3D Video Synthesis (2021), and human-focused work such as TAVA, ARCH and UP.541
On the engineering side, Lassner wrote the Pulsar renderer in 2021, which became the sphere-based rendering backend for PyTorch3D, and received an Honorable Mention at the ACM Multimedia Open-Source Software Competition 2016 for work on decision forests.13
Work
Pulsar: Efficient Sphere-based Neural Rendering (external site: arxiv.org)Open-source code
First author, with Michael Zollhöfer, of the Pulsar paper; Lassner wrote the Pulsar renderer, which is now the sphere-based rendering backend for PyTorch3D.31
Neural 3D Video Synthesis from Multi-view Video (external site: arxiv.org)Published research
Co-author of the 2021 paper on synthesizing dynamic 3D video from multi-view captures, one of the works Lassner's site lists on rendering representations of the physical world.41
Career timeline
2016
Received an Honorable Mention at the ACM Multimedia Open-Source Software Competition for decision forest software.1
Apr 2020
Posted the Pulsar paper on efficient sphere-based neural rendering as first author.3
Dec 2020
Co-authored Non-Rigid Neural Radiance Fields for dynamic scenes from monocular video.5
Mar 2021
Co-authored Neural 3D Video Synthesis from Multi-view Video.4
2022
The Meta research team's interactive radiance field work was featured at Meta Connect 2022.1
Other documented roles
Roles the sources document but that are not confirmed as current.
- Research team lead, Meta Reality Labs Research1
- Research team lead, Epic Games1
- Worked at the startup, which Amazon later acquired, Body Labs1
Honors and recognition
- ACM Multimedia Open-Source Software Competition, Honorable Mention · ACM Multimedia, 20161
Related people
More sourced profiles at the same organization, in the same field, or from the same school.
- Ben MildenhallAlso at World Labs
- Aditya RameshImage, video, and 3D generation
- Fei-Fei LiAlso at World Labs
- Alex NicholImage, video, and 3D generation
- Justin JohnsonAlso at World Labs
- Alexei A. EfrosComputer vision
- Abdelrahman MohamedAlso at Facebook AI Research
- Amir HertzImage, video, and 3D generation
- Adina WilliamsAlso at Meta
- Angjoo KanazawaComputer vision
- Aditya GroverAlso at Meta Fundamental AI Research
- Bichen WuAlso at Meta
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