David Coeurjolly
@dcoeurjo.bsky.social
Research Director at @cnrs.fr and @LIRISLyon, PEPR ICCARE https://pepr-iccare.fr, GdR IG-RV https://gdr-igrv.fr, GRSI https://www.replicabilitystamp.org, digital geometry DGtal.org @dgtal.bsky.social, geometry processing, computer graphics and geek stuff
Reposted by David Coeurjolly
Source Code now available for our ACM SIGGRAPH project
C-Tubes: Design and Optimization of Tubular Structures Composed of Developable Strips
Paper and code: go.epfl.ch/c-tubes
Authors: Michele Vidulis *, Klara Mundilova *, Quentin Becker *, Florin Isvoranu, Mark Pauly
*joint first authors
C-Tubes: Design and Optimization of Tubular Structures Composed of Developable Strips
Paper and code: go.epfl.ch/c-tubes
Authors: Michele Vidulis *, Klara Mundilova *, Quentin Becker *, Florin Isvoranu, Mark Pauly
*joint first authors
October 17, 2025 at 7:58 AM
Source Code now available for our ACM SIGGRAPH project
C-Tubes: Design and Optimization of Tubular Structures Composed of Developable Strips
Paper and code: go.epfl.ch/c-tubes
Authors: Michele Vidulis *, Klara Mundilova *, Quentin Becker *, Florin Isvoranu, Mark Pauly
*joint first authors
C-Tubes: Design and Optimization of Tubular Structures Composed of Developable Strips
Paper and code: go.epfl.ch/c-tubes
Authors: Michele Vidulis *, Klara Mundilova *, Quentin Becker *, Florin Isvoranu, Mark Pauly
*joint first authors
Glad to share with you our last paper to be presented @ SIGGRAPH Asia 2025 !
Kudos @baptiste-genest.bsky.social
Kudos @baptiste-genest.bsky.social
Computing the exact bijection of the optimal transport (OT) problem between very large point sets is completely untractable…
In our SIGGRAPH Asia 2025 paper: “BSP-OT: Sparse transport plans between discrete measures in log-linear time” we get one with typically 1% of error in a few seconds on CPU!
In our SIGGRAPH Asia 2025 paper: “BSP-OT: Sparse transport plans between discrete measures in log-linear time” we get one with typically 1% of error in a few seconds on CPU!
October 1, 2025 at 1:58 PM
Glad to share with you our last paper to be presented @ SIGGRAPH Asia 2025 !
Kudos @baptiste-genest.bsky.social
Kudos @baptiste-genest.bsky.social
Glad to share with you the release 2.1 of the UniformToolKit utk-team.github.io/utk/
UTK is a C++ and Python library to generate and analyze sampling patterns for numerical Monte-Carlo integration (eg. for path tracing algorithms).
UTK is a C++ and Python library to generate and analyze sampling patterns for numerical Monte-Carlo integration (eg. for path tracing algorithms).
August 23, 2025 at 12:05 PM
Glad to share with you the release 2.1 of the UniformToolKit utk-team.github.io/utk/
UTK is a C++ and Python library to generate and analyze sampling patterns for numerical Monte-Carlo integration (eg. for path tracing algorithms).
UTK is a C++ and Python library to generate and analyze sampling patterns for numerical Monte-Carlo integration (eg. for path tracing algorithms).
Axis plotter again... Voxelized Nerfertiti + random block shifts.
More here: perso.liris.cnrs.fr/david.coeurj...
#axisplotter
More here: perso.liris.cnrs.fr/david.coeurj...
#axisplotter
August 21, 2025 at 9:20 AM
Axis plotter again... Voxelized Nerfertiti + random block shifts.
More here: perso.liris.cnrs.fr/david.coeurj...
#axisplotter
More here: perso.liris.cnrs.fr/david.coeurj...
#axisplotter
We are happy to announce the major release 2.0 of DGtal (dgtal.org) 🎉. This big update makes the library more modern, in both how it is built and the tools it uses. This release also includes new features in both the C++ library and its python binding. #geometry-processing #c++ #python (1/...)
July 10, 2025 at 1:19 PM
We are happy to announce the major release 2.0 of DGtal (dgtal.org) 🎉. This big update makes the library more modern, in both how it is built and the tools it uses. This release also includes new features in both the C++ library and its python binding. #geometry-processing #c++ #python (1/...)
Reposted by David Coeurjolly
Ever wondered how badly we're all addicted to buying new GPUs in graphics labs?
Come see our talk at #SIGGRAPH2025 to discuss how we can collectively move "Towards a sustainable use of GPUs in Graphics Research"
with @elie-michel.bsky.social @axelparis.bsky.social Octave Crespel and Felix Hähnlein
Come see our talk at #SIGGRAPH2025 to discuss how we can collectively move "Towards a sustainable use of GPUs in Graphics Research"
with @elie-michel.bsky.social @axelparis.bsky.social Octave Crespel and Felix Hähnlein
![MOTIVATION
Graphical Processing Units (GPUs) are at the core of Computer Graphics research. These chips are critical for rendering images, processing geometric data, and training machine learning models. Yet, the production and disposal of GPUs emits CO2 and results in toxic e-waste [1].
METHOD
We surveyed 888 papers presented at SIGGRAPH (premier conference for computer graphics research), from 2018 to 2024, and systematically gathered GPU models cited in the text.
We then contextualize the hardware reported in papers with publicly available data of consumers’ hardware [2, 3].
REFERENCES
[1] CRAWFORD, KATE. The Atlas of AI: Power, Politics, and the Planetary Costs of Artificial Intelligence. Yale University Press, 2021.
[2] STEAM. Steam Hardware Survey. https://store.steampowered.com/hwsurvey
[3] BLENDER. Blender Open Data. https://opendata.blender.org](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:gpta66q3ots5ia23kvfzpu5r/bafkreidqnyftshkcmtpzqlxsknnvcn34xszafururgdixddtcuzrmwloqq@jpeg)
June 1, 2025 at 2:12 AM
Ever wondered how badly we're all addicted to buying new GPUs in graphics labs?
Come see our talk at #SIGGRAPH2025 to discuss how we can collectively move "Towards a sustainable use of GPUs in Graphics Research"
with @elie-michel.bsky.social @axelparis.bsky.social Octave Crespel and Felix Hähnlein
Come see our talk at #SIGGRAPH2025 to discuss how we can collectively move "Towards a sustainable use of GPUs in Graphics Research"
with @elie-michel.bsky.social @axelparis.bsky.social Octave Crespel and Felix Hähnlein
Reposted by David Coeurjolly
Implicit surfaces are great, but if you are not Inigo Quilez, it's really hard to control how they look...
That's why I'm really proud to annonce our Eurographics 2025 paper: "Implicit UVs: Real-time semi-global parameterization of implicit surfaces".
That's why I'm really proud to annonce our Eurographics 2025 paper: "Implicit UVs: Real-time semi-global parameterization of implicit surfaces".
May 10, 2025 at 6:20 PM
Implicit surfaces are great, but if you are not Inigo Quilez, it's really hard to control how they look...
That's why I'm really proud to annonce our Eurographics 2025 paper: "Implicit UVs: Real-time semi-global parameterization of implicit surfaces".
That's why I'm really proud to annonce our Eurographics 2025 paper: "Implicit UVs: Real-time semi-global parameterization of implicit surfaces".
A second paper has been accepted to SIGGRAPH 2025! Great collaboration with Khoa Do, @nbonneel.bsky.social , and Pooran Memari
bsky.app/profile/nbon...
bsky.app/profile/nbon...
A thread on our new, also awesome, Siggraph paper "Linear-Time Transport with Rectified Flows", by K. Do, @dcoeurjo.bsky.social, P. Memari and me.
Paper here: perso.liris.cnrs.fr/nicolas.bonn...
Results in video: youtu.be/EcfKnSe6mhk
Paper here: perso.liris.cnrs.fr/nicolas.bonn...
Results in video: youtu.be/EcfKnSe6mhk
Linear-Time Transport with Rectified Flows
YouTube video by David Coeurjolly
youtu.be
May 5, 2025 at 8:42 PM
A second paper has been accepted to SIGGRAPH 2025! Great collaboration with Khoa Do, @nbonneel.bsky.social , and Pooran Memari
bsky.app/profile/nbon...
bsky.app/profile/nbon...
Reposted by David Coeurjolly
A thread on Monte Carlo integration, Sobol' sequences and our new awesome Siggraph paper "Sobol' Sequences with Guaranteed-Quality 2D Projections". by @dcoeurjo.bsky.social , J-C Iehl, V. Ostromoukhov and me. The tl;dr is our video: www.youtube.com/watch?v=8A4Z...
[1/16]
[1/16]
Sobol' Sequences with Guaranteed-Quality 2D Projections, supplementary video
YouTube video by Nicolas Bonneel
www.youtube.com
May 4, 2025 at 7:38 PM
A thread on Monte Carlo integration, Sobol' sequences and our new awesome Siggraph paper "Sobol' Sequences with Guaranteed-Quality 2D Projections". by @dcoeurjo.bsky.social , J-C Iehl, V. Ostromoukhov and me. The tl;dr is our video: www.youtube.com/watch?v=8A4Z...
[1/16]
[1/16]
Glad to share with you our new sampling paper just accepted at siggraph 2025 (@nbonneel.bsky.social , JC Iehl, V Ostromoukhov)
bsky.app/profile/nbon...
bsky.app/profile/nbon...
A thread on Monte Carlo integration, Sobol' sequences and our new awesome Siggraph paper "Sobol' Sequences with Guaranteed-Quality 2D Projections". by @dcoeurjo.bsky.social , J-C Iehl, V. Ostromoukhov and me. The tl;dr is our video: www.youtube.com/watch?v=8A4Z...
[1/16]
[1/16]
Sobol' Sequences with Guaranteed-Quality 2D Projections, supplementary video
YouTube video by Nicolas Bonneel
www.youtube.com
May 5, 2025 at 6:04 AM
Glad to share with you our new sampling paper just accepted at siggraph 2025 (@nbonneel.bsky.social , JC Iehl, V Ostromoukhov)
bsky.app/profile/nbon...
bsky.app/profile/nbon...
Reposted by David Coeurjolly
The Symposium on Geometry Processing is an amazing venue for geometry research: meshes, point clouds, neural fields, 3D ML, etc. Reviews are quick and high-quality.
The deadline is in ~10 days. Consider submitting your work, I'm planning to submit!
sgp2025.my.canva.site/submit-page-...
The deadline is in ~10 days. Consider submitting your work, I'm planning to submit!
sgp2025.my.canva.site/submit-page-...
SGP 2025 - Submit page
sgp2025.my.canva.site
April 1, 2025 at 6:42 PM
The Symposium on Geometry Processing is an amazing venue for geometry research: meshes, point clouds, neural fields, 3D ML, etc. Reviews are quick and high-quality.
The deadline is in ~10 days. Consider submitting your work, I'm planning to submit!
sgp2025.my.canva.site/submit-page-...
The deadline is in ~10 days. Consider submitting your work, I'm planning to submit!
sgp2025.my.canva.site/submit-page-...
Just added Spectra (spectralib.org), Ponca (poncateam.github.io/ponca/) and TSL::robin_map (github.com/Tessil/robin...) to the cmake recipes list for easy C++ geometry processing prototyping
github.com/dcoeurjo/Geo...
github.com/dcoeurjo/Geo...
GitHub - dcoeurjo/GeometryProcessing-cmake-recipes: CPM / cmake recipes for geometry processing stuff
CPM / cmake recipes for geometry processing stuff. Contribute to dcoeurjo/GeometryProcessing-cmake-recipes development by creating an account on GitHub.
github.com
February 18, 2025 at 11:21 AM
Just added Spectra (spectralib.org), Ponca (poncateam.github.io/ponca/) and TSL::robin_map (github.com/Tessil/robin...) to the cmake recipes list for easy C++ geometry processing prototyping
github.com/dcoeurjo/Geo...
github.com/dcoeurjo/Geo...
Release 1.4.2 of @dgtal.bsky.social 🎉 with a new plane probing algorithm (L-algorithm) and minor bug fixes.
www.dgtal.org/2024-12-23-d...
www.dgtal.org/2024-12-23-d...
DGtal release 1.4.2
We are happy to announce the release 1.4.2 of DGtal. This is a minor release fixing some bugs and dependencies issues. This release may be the last one before a major release (2.0) with some breaking ...
www.dgtal.org
December 23, 2024 at 1:44 PM
Release 1.4.2 of @dgtal.bsky.social 🎉 with a new plane probing algorithm (L-algorithm) and minor bug fixes.
www.dgtal.org/2024-12-23-d...
www.dgtal.org/2024-12-23-d...
If you want to learn more about « Differentiable Owen Scrambling » (best paper award 🎉), come to see Bastien @ siggraph Asia (Friday, 6th, 9am, Hall B5).
December 3, 2024 at 10:27 AM
If you want to learn more about « Differentiable Owen Scrambling » (best paper award 🎉), come to see Bastien @ siggraph Asia (Friday, 6th, 9am, Hall B5).
If you need to quickly setup a C++ geometry processing project mixing existing libs (polyscope, eigen, DGtal, cgal, geometry-central, libigl, directional…). I’m sharing with you my cmake recipes
github.com/dcoeurjo/Geo...
github.com/dcoeurjo/Geo...
GitHub - dcoeurjo/GeometryProcessing-cmake-recipes: CPM / cmake recipes for geometry processing stuff
CPM / cmake recipes for geometry processing stuff. Contribute to dcoeurjo/GeometryProcessing-cmake-recipes development by creating an account on GitHub.
github.com
November 20, 2024 at 7:51 AM
If you need to quickly setup a C++ geometry processing project mixing existing libs (polyscope, eigen, DGtal, cgal, geometry-central, libigl, directional…). I’m sharing with you my cmake recipes
github.com/dcoeurjo/Geo...
github.com/dcoeurjo/Geo...