iiinova — where your digital self keeps evolving

Baptiste GENEST @baptiste-genest.bsky.social · 28/09/2026

The exporting is done naively through screenshots of the entire render to capture 3D, etc... so I guess fonts are not a problem^^

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Baptiste GENEST @baptiste-genest.bsky.social · 27/09/2026

I'm thinking about a way to embed it in a webpage where the animations would be recorded end you way still be able to change slides by hand. No interactivity but the animations would remain... The dream would be emscriptten but polyscope is incompatible for now...

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Baptiste GENEST @baptiste-genest.bsky.social · 27/09/2026

Yes this is always a risk (it happened to me once, we had to install the lib on a friend's laptop in a rush, it turned out ok!). But worst case scenario, you can export your presentation into a PDF automatically! (Most of the animations will be lost but that's better than nothing 😅)

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Baptiste GENEST @baptiste-genest.bsky.social · 27/09/2026

Hi! Thank you! To be honest, the 4 times I had to present there, it was possible (sometimes everyone had to) to present on my laptop. So I never had a problem... It's like conf templates I guess, more a suggestion than a requirement?

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Baptiste GENEST @baptiste-genest.bsky.social · 26/09/2026

This project would have literally not been possible without the amazing Polyscope polyscope.run library made by @nmwsharp.bsky.social ! And many thanks to my advisor @dcoeurjo.bsky.social for bullying me into talking about out it publicly! xD

polyscope.run

Polyscope - C++

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Baptiste GENEST @baptiste-genest.bsky.social · 26/09/2026

It's a back-burner project of mine for nearly 3 years now. I used it for all my presentations at Eurographics and SIGGRAPH, so I'm really happy to talk about it! Links: Documentation slopedoc.github.io Examples github.com/baptiste-gen... Youtube tutorial www.youtube.com/watch?v=YEEs...

slopedoc.github.io

What is Slope? - Slope

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Baptiste GENEST @baptiste-genest.bsky.social · 26/09/2026

If you used manim, you KNOW, that math animations take time... To avoid this, you define only your very complicated animations in C++ (possibly using directly your scientific code!), but most of the talk is made using hot-reloaded yaml (for the compositing), latex, shaders and lua snippets!

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Baptiste GENEST @baptiste-genest.bsky.social · 26/09/2026

As graphics researchers or geometry teachers, we speak about 3D using screenshots, and that's just sad... What if you could make SLides on top of PolyscOPE? You can using SLOPE! Slope allows you to synchronize a 3D viewer, animated meshes, shaders, live demos, equations (& more) with your slides!

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Baptiste GENEST @baptiste-genest.bsky.social · 23/09/2026

Someone made a Houdini asset with it and is doing art ! It makes me so proud😭 youtu.be/Vy63rWhi7bk?... www.reddit.com/r/Houdini/s/...

youtu.be

OT Letters

YouTube video by SingleVector

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Marcello Seri @mseri.me · 09/09/2026

This surface visualizer is super cool: e-infinity.space/picture-book/ Ping @msmathcomp.bsky.social

e-infinity.space

A Topological Picture Book, Rendered

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Gro-Tsen @gro-tsen.bsky.social · 20/07/2026

Let me expand upon this 🔽 and say something about AIs, mathematics, proofs, conjectures, problem-solving, goalposts, paperclips, genii and, more importantly, Campbell/Goodhart's law. 🧵⤵️ •1/38

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Baptiste GENEST @baptiste-genest.bsky.social · 10/08/2026

I know nothing about GPU programming, so I thought that BSP-OT on the GPU would not work because we are recursive then sequential... I asked Claude to give it a try in CUDA: x10 speed-up 😳 0.4s for 350k points in 3D, with the same quality as the CPU 😱 Here is the code: github.com/baptiste-gen...

github.com

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Gabriel Peyré @gabrielpeyre.bsky.social · 07/08/2026

The Mathematical Nexus brings together 800 animated vignettes and 140 accompanying Python notebooks, encompassing most of the mathematical content I have shared on social media. www.gpeyre.com/mathematical...

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Baptiste GENEST @baptiste-genest.bsky.social · 29/07/2026

I can't wait to receive your book😍

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Bruno Levy @brunolevy01.bsky.social · 27/07/2026

My son just participated to a game jam. With a friend they created this puzzle game in 4 days ! owomelete.itch.io/catterplosion

owomelete.itch.io

Catterplosion by OwOmelete, wibix

Help Wiggle The Galaxy Swallower of Eternal Despair make his childrens become butterflys !

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Baptiste GENEST @baptiste-genest.bsky.social · 27/07/2026

This game is awesome!! I adore the art and the gameplay is addictive! Huge congrats to them! 🤩

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Baptiste GENEST @baptiste-genest.bsky.social · 27/07/2026

This is such a weird claim😱..... I would be so mad 😂 Good luck with that xD

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Baptiste GENEST @baptiste-genest.bsky.social · 26/07/2026

I added an erratum on my page and made a web-demo! baptiste-genest.github.io/implicit_uvs... Super happy to finally release code for my paper that has apparently drawn the most attention so far! In conclusion: what would we do without passionate bachelor's students? Thank again @arezdev.de!

baptiste-genest.github.io

Implicit UVs — web demo

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Baptiste GENEST @baptiste-genest.bsky.social · 26/07/2026

I realized that the final line in the core algorithm was missing a term 🫠 (but the math describing it was fine). Anyway, we could make his implementation work! Here is his godot implem: github.com/ARez2/Implic... I (and claude) made a standalone C++ version out of it: github.com/baptiste-gen...

github.com

GitHub - ARez2/ImplicitUVsImplementation: Godot implementation of the paper "Implicit UVs: Real-time semi-global parameterization of implicit surfaces"

Godot implementation of the paper "Implicit UVs: Real-time semi-global parameterization of implicit surfaces" - ARez2/ImplicitUVsImplementation

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Baptiste GENEST @baptiste-genest.bsky.social · 26/07/2026

At the end of my internship at Adobe, we could not release code for numerous reasons. But I thought that the pseudo-code in the paper would be enough for anyone to re-implement it! I was wrong 🫠 @arezdev.de contacted me a week ago, asking why his implementation did not work...

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ARez @arezdev.de · 25/07/2026

My implementation of the paper "Implicit UVs: Real-time semi-global parameterization of implicit surfaces" from @baptiste-genest.bsky.social. The paper describes a way to texture SDFs in realtime by letting the user place seeds on the surface which get blended into a global UV space #godot #Graphics

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David Coeurjolly @dcoeurjo.bsky.social · 19/07/2026

Here we are, SIGGRAPH 2026! Don’t miss @baptiste-genest.bsky.social ´s tech paper talk “Uncertainty-aware geometry processing on Gaussian Process Implicit Surfaces” on Monday 11h45 (Room 403A) during the “Winding Numbers and Surface Representation” session

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beetle moses @beetlemoses.bsky.social · 12/07/2026

Wrong turn (1/3)

Page 1 of comic. A village of alien denizens on a planet with a massive black hole in place of a sun. Narrative text reads: We were a peaceful folk. Every day, we’d rise and sing to our sun. Until one day…

Page 2. Narrative reads: “It sang back.” A neon blue green comet flies out from the black hole, impossibly. The aliens stare up at the sky.

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Baptiste GENEST @baptiste-genest.bsky.social · 28/06/2026

Je me suis un peu ennuyé sur la première moitié mais après j'ai fait que chialer donc c'était bien😂

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Ingrid Burrington @lifewinning.com · 16/06/2026

Today someone told me their hobby is "triangles"

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Gabriel Peyré @gabrielpeyre.bsky.social · 16/06/2026

The alpha version of my new book "Optimal Transport for Machine Learners" is out, with in particular an online version with interactive figures www.gpeyre.com/ot4ml/

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Nicole Feng @nicole--f.bsky.social · 15/06/2026

I recently completed my PhD thesis, where I developed algorithms for making geometric inferences from imperfect data (i.e. incomplete and inaccurate observations/representations of shapes, like broken meshes or point clouds). A thread 🧵:

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Baptiste GENEST @baptiste-genest.bsky.social · 11/06/2026

Honestly, learning that someone that does very cool stuff considers you cool as well is hell of a prize😂

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Baptiste GENEST @baptiste-genest.bsky.social · 10/06/2026

😱😱😱 Wow! It means the world to be on this list!!! Thank you so much for being such a supportive and positive person, research would be heaven if everyone acted like you do🙏

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Tzu-Mao Li @tzumaoli.bsky.social · 10/06/2026

cseweb.ucsd.edu/~tzli/cool_r... I started to maintain a list of homepages of graphics academics who I think did cool work, are younger than me, and are not my current/past students. It's a living list so if I read any cool papers I'll add the authors to the list. I encourage you to do the same!

cseweb.ucsd.edu

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Rémi Flamary @rflamary.bsky.social · 08/06/2026

Yep I'm been playing with the BSP-OT solver and it is quite fast. The following interpolation is done on 300k samples and only takes a few seconds (but can only find permutations). Generating the GIF/animation is slower than solving the problem.

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Baptiste GENEST @baptiste-genest.bsky.social · 07/06/2026

I'm *thrilled* to announce that: "MORE pictures of my cat" have been accepted for publication on *my website* 😻! baptiste-genest.github.io/toffee/ This is joint work with my girlfriend👏

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Baptiste GENEST @baptiste-genest.bsky.social · 07/06/2026

Super happy and proud of this! Many thanks to @rflamary.bsky.social for his time and help 🙏 I'd strongly encourage anyone to contribute to the library, Rémy makes it easy! Check out the example: pythonot.github.io/master/auto_... !

pythonot.github.io

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Baptiste GENEST @baptiste-genest.bsky.social · 28/05/2026

Has the rating of EG/SGP officially changed? Or people are just more likely to submit there ? That would be really nice... (to avoid having to go super far in airplane just for conf ratings...)

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

What?? Are you talking about "A Bayesian Approach for Task-Specific Next-Best-View Selection with Uncertain Geometry" ?

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

Thank you so much🙏 You inspired it😉

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

I'm extremely grateful to the award committee and to my awesome advisor @dcoeurjo.bsky.social !

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

I will present this work at LA on Monday 20th of July! Paper: baptiste-genest.github.io/papers/gpgp.... Code: github.com/baptiste-gen... Genest, Baptiste, and David Coeurjolly. "Uncertainty-aware geometry processing on Gaussian Process Implicit Surfaces." ACM Transactions on Graphics 45.4 (2026).

baptiste-genest.github.io

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

How does it impact downstream applications? Essentially, we show that the results interpolate between the standard calculus on the mean surface at low uncertainty and a volumetric representation of the shape where regions without data are more and more ignored at high uncertainty.

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

E.g., we define a probabilistic analog of the laplacian as the functional gradient of the *expected* Dirichlet energy. We also derive other useful objects to study the geometry of GPIS, like a meaningful notion of surface likelihood, and a matrix field encoding the distribution of tangent planes.

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

But if the surface is random, then so are integrals over them! So what? Monte-Carlo? No! Our core contribution is to show that the Kac-Rice formula is perfect for the job as it allows us to express the exact expected value of such integrals over the entire shape distribution at once!

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

To perform geometry processing on such surfaces, we propose analogs of core differential operators in geometry: Laplacian, gradient, divergence. A common way to define the Laplacian for instance, is through the Dirichlet energy, i.e, the integral over the surface of squared variation of a function.

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

We work on random surfaces that are encoded as Gaussian Process Implicit Surfaces (GPIS). Essentially, if the isosurface of a standard scalar field encodes a single shape, the isosurfaces of a *random* scalar field (a Gaussian process) encodes a distribution of surfaces.

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

In our @acmsiggraph.bsky.social SIGGRAPH 2026 paper with @dcoeurjo.bsky.social “Uncertainty-aware geometry processing on Gaussian Process Implicit Surfaces”, we propose a way to do geometry processing over *probability distributions* of shapes!

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Baptiste GENEST @baptiste-genest.bsky.social · 27/05/2026

When dealing with noisy and/or partial inputs to describe a shape, the standard approach in geometry processing is to reconstruct a clean implicit surface first, and to do geometry on it. But why this one in particular? What about all the other surfaces that would have been coherent with the input?

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CNRS Sciences informatiques @cnrsinformatics.bsky.social · 30/04/2026

#RésultatScientifique 🔎 | Des chercheurs du #LIRIS ont réalisé une avancée qui ouvre de nouvelles perspectives pour l’assignation de points en informatique graphique, en apprentissage automatique et au-delà. ➡️ www.ins2i.cnrs.fr/fr/cnrsinfo/... 🤝 @cnrs-rhoneauvergne.bsky.social

ins2i.cnrs.fr

Transport optimal : une méthode simple et efficace pour des problèmes de grande taille

Des chercheurs du Laboratoire d'informatique en images et systèmes d'information

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