iiinova — where your digital self keeps evolving

For both of these projects, I wrote a short description on my blog: chalier.fr/blog

chalier.fr

Blog - Yohan Chalier

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Finally, I have implemented a small patience game from my childhood, where two players, by turns, build an infinite portmanteau word (in French), with a homemade lightweight pronunciation model: chalier.fr/mot-long/

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I have made a tiny video painting tool, as part of a collaboration for a music video. Unfortunately, the result will not be published. Yet, here is the tool if you want to try it: codeberg.org/ychalier/vid...

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Yooo @chalier.fr · 12/03/2026

I have not published in a while, but here are some news. Bad one first: with the current heat waves here in Europe, I periodically turn off my self-hosted server. If you get a timeout error, retry when the air is cooler!

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À Clermont-Ferrand ce week-end se tient la compétition vidéo du festival Vidéoformes. Mon (modeste) film « Ensemble, ils dérivèrent » y sera projeté dimanche après-midi. Le reste de la programmation me semble très prometteuse, j'ai hâte !

festival.videoformes.com

Festival VIDEOFORMES 2026

Structure de diffusion et de production artistique depuis 1984, dans le domaine de l’art vidéo et des arts numériques, VIDEOFORMES organise un festival international éponyme annuel à Clermont-Ferrand

Yooo @chalier.fr · 04/02/2026

If I take time I could add that. I tried a Python implementation with R-trees using the built-in module, which was really fast, so I could replicate that!

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Yooo @chalier.fr · 04/02/2026

That's a good idea! No, there's no optimization whatsoever, and you definitely notice it when the number of veins and sources grows. My main goal was first to see "how it looks". The "put it under the rug" trick is that, compared to parameters in the paper, we operate at a much smaller scale.

Yooo @chalier.fr · 02/02/2026

In a somewhat recent Tsoding stream, I've heard about venation pattern algorithms, and tried to implement one (Runions et al.). You may try it yourself at chalier.fr/generative-a...

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Yooo @chalier.fr · 19/01/2026

Here is a sneak peak:

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Yooo @chalier.fr · 19/01/2026

Inspired by Actinomy's server charm manifesto, I've tried to build my own. Very pleasant experience, got to learn FreeCAD, how to solder things. If you want to know what's on it, you'll have to get near me! To build your own: codeberg.org/actinomy/ser...

Screenshot of FreeCAD showing the case for my server charm

Photo of the 3D printed case (white top, pink bottom) with the electronics chip visible inside

Photo of the 3D printed case (white top, pink bottom) with a transparent panel hiding the inner electronics

Photo of the server charm hanging from a belt on my trousers

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Yooo @chalier.fr · 03/01/2026

And here is a 'dolly-zoom' experiment:

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Yooo @chalier.fr · 03/01/2026

I've been experimenting a bit with Sharp, Apple's open model for generating 3D models from single photos. It's quite good, and certainly allows for various cool effects. Here are in an example rendered with Blender and the 3DGS Render add-on by the Kiri Engine team.

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Yooo @chalier.fr · 27/11/2025

Turing patterns emerging from a repeated blur-sharpen process, a WebGL implementation: chalier.fr/generative-a...

Moshed macro images of two mushrooms, with Turing patterns. The soil is black and white. The background is green and black. Some starry red shapes are visible in the background.

Moshed photo of the reflection of trees on a river surface, with Turing patterns.

Moshed photo of two tree trunks lightened by the sun, with a strong shadow, in an open field. Turing pattern creates a sort of mosaic effect, with shades of yellow, green and brown.

Moshed photo of two ducks floating in water, with a slight introduction of Turing patterns. The pattern has not really emerged yet.

Yooo @chalier.fr · 11/11/2025

Quelques effets maison dans ce clip ! www.youtube.com/watch?v=YOiN...

youtube.com

Paix du Soir - Cité Sauvage

YouTube video by Cité Sauvage

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Yooo @chalier.fr · 02/10/2025

Inspired by a recent Spectral Collective video published on 3B1B's channel, I've implemented a simple version of the liquid-vapor model: chalier.fr/generative-a... Move the mouse to change params, scroll for speed, left/right click to add/remove particles, press S/R to screenshot/record the screen.

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Yooo @chalier.fr · 21/09/2025

Encore une fois, le code est sur GitHub : github.com/ychalier/gen...

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Yooo @chalier.fr · 21/09/2025

Très cool à suivre (en replay malheureusement) ! Je partage à nouveau une implémentation rapide sous WebGL de ces bassins de Wada : chalier.fr/generative-a...

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Also, I've added a parameter to the frame blending tool to blend frames in fixed buckets instead of a rolling window. The intent was to mimic one of Wong Kar-wai's 'blurry stop-motion' effect.

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One last example with a buzzard.

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Another example with different variations of a still image.

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I've also added a tool to apply effects to images and videos by manipulating their frequency representation. It is a bit hard to control, but can create great visuals.

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Yooo @chalier.fr · 11/09/2025

I've added a tool to retime panoramic videos that can get choppy when panned by hand with amateur gear. This tool estimates the panning speed and interpolate frames to make it constant.

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A few weeks ago, I published the version 1.11 of Transflow, which generalizes the way pixel sources behave with a nice 'Compositor' framework. Mainly, Transflow should now be easier to use, even for more advanced effects. I've also updated the documentation with more examples, for you to try it out.

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Yooo @chalier.fr · 29/07/2025

I've just pushed the v1.10 of Transflow. Not a lot a new features, I've tried to clean up the code and make it more structured: github.com/ychalier/tra... The next update should also be a refactoring, I would like to unify the multiple accumulation methods into a cleaner, general class. Stay tuned!

github.com

Release v1.10.0 · ychalier/transflow

Changelog Refactored code into multiple files Introduced flow sources builders to preprocess flow source parameters Introduced a way to import and export main configuration Added FramesVideoOutput...

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Reposted by Yooo

Mickaël Launay @mickaellaunay.bsky.social · 25/07/2025

Depuis quelques temps, je me suis remis à jouer aux échecs et je fais régulièrement des parties sur l'appli @chess.com qui permet de trouver des adversaires en direct un peu partout dans le monde. Or j'ai remarqué un truc :

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Yooo @chalier.fr · 02/07/2025

Also, due to the current heatwaves here in France, I'm turning off my web server during heat peaks, I would not want to fry it. Sorry for the inconvenience!

Yooo @chalier.fr · 02/07/2025

Just released v1.9.0 of Transflow, with a brand new GUI! If you're afraid of command line interfaces, this should make your life easier. Beware, though, this is still experimental, bugs may/will arise.

Screenshot of Transflow GUI, a webapp with two panels (left and right) and many inputs for setting parameters. A video is loaded on the left, a live preview of the output is visible on the right.

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Yooo @chalier.fr · 20/06/2025

You can try it here: chalier.fr/generative-a...

chalier.fr

randomart

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Yooo @chalier.fr · 20/06/2025

I've just added an audio reactive feature to my randomart webapp. In short, you can use specific variable names in the grammar to refer to the (normalized) intensity of ranges of the frequency spectrum (e.g. low, mid & hi). Here's a sneakpeak: 🎵 Mega Hyper Ultrastorm (Kevin MacLeod, 2017)

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Yooo @chalier.fr · 26/05/2025

I also added a script for generating videos, as publicised by original authors:

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Yooo @chalier.fr · 26/05/2025

Here is an example:

Black and white halftone image of the reflection of a tree in a river. Part of the pixels in the image center are forming a QR code, pointing to https://chalier.fr

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Yooo @chalier.fr · 26/05/2025

2y ago, I built a tool to generate halftone images, inspired by a paper about halftone QR codes. Lately, I've wanted to use this technique to embed a QR code within an halftone image. I found an old repo on GitHub, refactored it and added my scripts: github.com/ychalier/hal...

Yooo @chalier.fr · 10/05/2025

Je partage mon implémentation (faite un peu à la va-vite), réalisée pour WebGL (rapide et à peu près portable !) : chalier.fr/generative-a...

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Yooo @chalier.fr · 09/05/2025

I tweaked Transflow to replicate the 'sticky texture' effect of regular datamoshing. The code is a bit dirty but the result is nice! Here are three clips pasted together:

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Yooo @chalier.fr · 03/05/2025

Just learned about LiDAR HD data by IGN, a point cloud mapping of most of surface of France. It's really cool, and freely available! Visualization made with QGIS 3D Viewer.

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Yooo @chalier.fr · 13/04/2025

Rotation around a stump:

Yooo @chalier.fr · 13/04/2025

Motion Interference. Applying the reversed flow on the same video makes pixels relatively static while revealing some of the transformations – e.g. through perspective change or flow inaccuracies. Thought for later: is there a motion equivalent of the Moiré effect? Below, view from a moving train:

Yooo @chalier.fr · 26/03/2025

Though, I have not found a nice way of generating loops. So far, I'm manually interpolating frames between the end and the start using RIFE, which looks good enough.

Grid of thumbnails from the previous video: dominant red color, abstract color patches, appearances of pine trees.

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Yooo @chalier.fr · 26/03/2025

Been trying out Deforum for generating videos with Stable Diffusion. It's great at textured and abstract drawings. (Side note: I need a better GPU)

Yooo @chalier.fr · 22/03/2025

Here's another example where consecutive frames are merged together:

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Yooo @chalier.fr · 22/03/2025

The tool I used for this is available on my GitHub: github.com/ychalier/fft...

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Yooo @chalier.fr · 22/03/2025

I've been playing around with a public webcam recording 30s clips every 5min of a pedestrian area, and blending those clips together. Here's an example with an (about) 8 hours span (94 clips). Also, you may try to find that place, it should be pretty easy!