Lightnews — Scholar-powered news

Yooo @chalier.fr · 8d

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.

Yooo @chalier.fr · 19d

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

Yooo @chalier.fr · 19d

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...

2 2 5

Yooo @chalier.fr · 28d

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.

Yooo @chalier.fr · 28d

One last example with a buzzard.

1

Yooo @chalier.fr · 28d

Another example with different variations of a still image.

1

Yooo @chalier.fr · 28d

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.

1

Yooo @chalier.fr · 28d

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.

1

Yooo @chalier.fr · 28d

Lately, I've been refactoring and cleaning up my FFtools repository: github.com/ychalier/fft...

GitHub - ychalier/fftools: Graphical Toolbet

Graphical Toolbet. Contribute to ychalier/fftools development by creating an account on GitHub.

github.com

1

Yooo @chalier.fr · 29d

Here is the release: github.com/ychalier/tra...

Release v1.11.0 Compositor · ychalier/transflow

Changelog Introduced new Compositor and Layer objects to handle the manipulation of pixels Forward flows are now automatically converted into backward flows Removed Accumulators (they became Layer...

github.com

Yooo @chalier.fr · 29d

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.

1

Yooo @chalier.fr · Jul 29

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!

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...

github.com

Reposted by Yooo

Mickaël Launay @mickaellaunay.bsky.social · Jul 25

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 :

3 2 9

Yooo @chalier.fr · Jul 2

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!

1

Yooo @chalier.fr · Jul 2

Find the full release on GitHub: github.com/ychalier/tra...

Release v1.9.0 GUI Prototype · ychalier/transflow

Changelog Added GUI as a webapp running on a local server (still a work-in-progress!) Added MJPEG stream output Added support for multiple outputs at once Added Config class for passing parameters...

github.com

Yooo @chalier.fr · Jul 2

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.

1 2

Yooo @chalier.fr · Jun 20

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

randomart

chalier.fr

Yooo @chalier.fr · Jun 20

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)

1

Yooo @chalier.fr · May 26

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

Yooo @chalier.fr · May 26

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

1

Yooo @chalier.fr · May 26

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...

1 1

Yooo @chalier.fr · May 10

Le code est sur GitHub : github.com/ychalier/gen...

generative-art/space-inversion at main · ychalier/generative-art

Simple algorithms generating aesthetically pleasing stuff. - ychalier/generative-art

github.com

Yooo @chalier.fr · May 10

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

chalier.fr/generative-a...

1 1 8

Yooo @chalier.fr · May 9

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:

1 2

Yooo @chalier.fr · May 3

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.

2