Hugo Schott

Un sourcier marchant vers le photographe avec une baguette de bois en forme de Y

Les sourciers affirment détecter de l'eau souterraine au moyen de différents dispositifs (baguettes, pendule...)

Loin d'être cantonnés à des activités traditionnelles, on apprend en 2024 que certaines préfectures rendent leur passage obligatoire dans le cadre de grands travaux.

Fil à dérouler ⬇️⬇️⬇️

Une photo de Trump accompagnée d'un texte. Traduction trouvée sur Facebook: "Regardez. La carcasse purulente de la pourriture américaine coincée dans un costume trop étroit : la vulgarité d’un escroc, la lâcheté d’un déserteur, la gloutonnerie d’un parasite, le racisme d’un membre du Ku Klux Klan, le sexisme d’un pervers de ruelle, l’ignorance d’un ivrogne accoudé au bar, et l’avidité d’un vautour de fonds spéculatifs, le tout peint en orange et exhibé comme un cochon primé à une foire agricole. Ni un président. Même pas un homme. Juste la distillation maladive de tout ce que ce pays jure ne pas être, mais a toujours été : l’arrogance déguisée en exceptionnalisme, la stupidité déguisée en bon sens, la cruauté vendue comme de la force, l’avidité glorifiée comme de l’ambition, et la corruption adorée comme un évangile. C’est l’ombre de l’Amérique faite chair, une idole-citrouille pourrissante prouvant que lorsqu’une nation s’agenouille devant l’argent, le pouvoir et la rancune, elle ne perd pas seulement son âme, elle défèque cette obscénité boursouflée et l’appelle un chef."

Je viens de tomber sur ce texte de @kornetzke.bsky.social et je pense qu'il résume à la perfection ces dernières années. C'est un poème. Une ode.

Modeling faceted geometry as a 4D point process on a multiscale implicit grid enables real-time glint rendering for standard NDFs, with IS, anisotropy, and colored particles. Memory-free, in a standalone fragment shader. Our SIGGRAPH Asia 2025 paper: research.adobe.com/publication/....

Super happy and honored to share that our paper "BSP-OT: Sparse transport plans between discrete measures in log-linear time" won a *Best paper award* at SIGGRAPH Asia 2025!

If you are here, come see my presentation about this work Wednesday afternoon!

Many thanks to the award committee!

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!

Cyprien Plateau--Holleville in front of his title slide at the RING meeting

RING meeting in Nancy,
Cyprien Plateau--Holleville presented presented his awesome work on exact integration of the differential quantities involved in Partial Optimal Transport. And that's not all: It comes with a combined physsim - Optimal Transport - rendering on the GPU !

327 streams pour la cause, 4 heures de concert, 55 heures de live, 751889 viewers en pic d'audience (enregistré le 7 septembre 2025 à 23h01) 296175 viewers en moyenne, 17223780 heures vues 4121 dresseurs, 8 badges, 11142783 crédits dépensés sur Z/Place, +27000 personnes connectées en pic au Z/Place 739857 dons au total, 17,61€ de don en moyenne, 371991 dons strictement inférieurs à 5€ 62690€ par minutes. Somme récoltée grâce à la boutique : 3154084€ Somme récoltée par les streamers à distance : 2239120€ Somme totale récoltée : 16179096€ Soit 274222€ par heure

Voici l'infographie officielle de ce #ZEVENT2025 ! Merci à tous pour votre engagement dans ce weekend incroyable qu'on vient de vivre ensemble !

It was so good to be in Vancouver to present our work “Interactive Optimization of Scaffolded Procedural Patterns” at #Siggraph2025!

If you couldn’t make it, have a look at our project page!
💻 marzia-riso.github.io/iospp.html

Can’t wait for what’s next! 🎉

Sample image from the Lipschitz pruning released application

🚀The code for Lipschitz Pruning is now online thanks to @wbrbr.bsky.social🚀

🔗 github.com/wbrbr/Lipsch...

It's a simple Vulkan app useful for experiments. Also, the monument done by @elie-michel.bsky.social is released under a CC-BY license📄

(poke @mattkeeter.com I remember you asked!)

Carte de Paris simulation îlot de chaleur

Vous avez sûrement déjà lu que la climatisation aggrave les canicules car l’air chaud rejeté à l’extérieur augmenterait la température des villes de 2 à 3°C.

Vérifions ce que disent vraiment les études scientifiques à ce sujet 🧑‍🔬

(lisez jusqu’au bout, car vous allez être 🤯🤯 à la fin)

#Thread
⬇️⬇️

Presenting this paper tomorrow morning at 9:30am, during the Lightning Fast Geometry session⚡
Come check it out if you can!

Differentiable rendering has transformed graphics and 3D vision, but what about other fields? Our SIGGRAPH 2025 introduces misuka, the first fully-differentiable path tracer for acoustics.

I will be presenting the paper "Lipschitz Pruning: Hierarchical Simplification of Primitive-Based SDFs" at SIGGRAPH 2025 during the Best of Eurographics session! Come to my talk on Wednesday morning
wbrbr.org/publications...

🌐 Webpage: aparis69.github.io/SphereCarvin...

🔗 Code: github.com/H-Schott/Sph...

📽️ Video: www.youtube.com/watch?v=fekn...

📜 New SIGGRAPH 2025 paper 🎉

❔How to compute bounding volumes for procedural Signed Distance Fields (SDFs)? This is not so trivial!

💡We propose a simple method called Sphere Carving. It extracts (convex) bounding volumes around SDFs, requires very few evaluations, and is GPU compatible.

C'est drôle parce que ce matin mon fils de 3 mois me disait: "Papa, pourquoi tous ces politicards minables et corrompus se sentent obligés d'inventer des dialogues d'enfants pour étayer leurs dérives fascisantes?"
Et après il a rempli sa couche avec une parfaite imitation de François Bayrou.

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

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

Fun new paper at #SIGGRAPH2025:

What if instead of two 6-sided dice, you could roll a single "funky-shaped" die that gives the same statistics (e.g, 7 is twice as likely as 4 or 10).

Or make fair dice in any shape—e.g., dragons rather than cubes?

That's exactly what we do! 1/n

Wilhem receiving the award on stage

🏅Honored to have been awarded at #Eurographics25 for our paper on #LipschitzPruning to speed-up SDF rendering!

👉 The paper's page: wbrbr.org/publications...

Congrats to @wbrbr.bsky.social, M. Sanchez, @axelparis.bsky.social, T. Lambert, @tamyboubekeur.bsky.social, M. Paulin and T. Thonat!

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".

Left: an input CSG tree and a much smaller pruned tree computed using our method. Right: a rendered scene showing the number of active nodes per cell. Our method reduces the active nodes to less than 20 from the initial 6023 nodes of the input tree.

I am proud to announce our Eurographics 2025 paper "Lipschitz Pruning: Hierarchical Simplification of Primitive-Based SDFs"! With Mathieu Sanchez (joint first author), @axelparis.bluesky.social, @elie-michel.bsky.social, Thibaud Lambert, @tamyboubekeur.bsky.social, Mathias Paulin and Théo Thonat.

After trying several broken repos/scripts, I made a Python script for rendering #ShaderToy shaders to antialiased video (or rather, image sequences):

github.com/keenancrane/...

(This one will surely be broken too someday, but for now it works nicely 😛)

Graphic showing where various cities are placed relative to whether everyone walks their cycles, everyone uses public transit, or everyone drives.

This is interesting — a recent study of mode share (the % share of transportation trips by car, transit, walking, biking etc) relative to city size and income levels in almost 800 cities in 61 countries. Interesting results. HT @davidzipper.bsky.social
www.sciencedirect.com/science/arti...