@29a_ch

Open source and web enthusiast. Interested in rust, go, typescript, gfx, audio, guitars, games, paragliding and bikes. https://xitter.cf/t.co/vJLNSEILM5

 Zurich, Switzerland
29a.ch/
Joined May 2010
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  • Following275
  • Followers1.7K
64Media
Produced a pretty bug while changing some old graphics code. :)
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The sun rising over the alps. Another shot from my over-engineered #rustlang hill shading path tracer. I didn't properly account for the curvature of the earth but I think it looks quite pretty. :) The DEM used is ASTGTM v003.
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Having a bit of fun over engineering hill shading by path tracing digital elevation maps with an atmospheric simulation. (: Coded in #rustlang and running on the CPU. Very slowly.
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Made a little GPU particle system with @threejs. 16'777'216 particles dancing in a force field. Somehow completely forgot how much I enjoy playing with particles. :)
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Coded a little toy for the @BevyEngine jam #2. If you've ever wanted to drift a combine harvester, this one is for you. ;) Mostly an exercise to learn rust and play with bevy. itch.io/jam/bevy-jam-2/rate/…

Combine Drift Program by 29a_ch for Bevy Jam #2

Drifting Combine Harvesters. Play in your browser

itch.io
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A rainy saturday seems like a perfect day to release a new version of simplex-noise.js and a little demo to go along. 29a.ch/sandbox/2022/simplex-… canvas 2d only, #nowebgl, not exactly fast as a result. :)
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Jonas Wagner retweeted
David Aerne@meodai9 Jul 2022
Just stumbled over an ancient project that @29a_ch and I had started. It would need much more work, but I think its kinda addicting: 29a.ch/ubercharge/ #js #gamedev
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Jonas Wagner retweeted
Amit Patel@redblobgames9 Mar 2022
Today's project: updating redblobgames.com/maps/terrai… with a new version of simplex-noise.js from @29a_ch <github.com/jwagner/simplex-n…> New JS (min+gzip) is even smaller than before. Under 10kb. No, that's not for the noise library. That's for the *entire* page, including the library!
Example of east-west wraparound map

ALT Example of east-west wraparound map

Example of east-west-north-south wraparound map

ALT Example of east-west-north-south wraparound map

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A bit more weekend #3Dprinting fun. Built a tool to apply procedural wood displacement maps to 3d prints using #threejs. 29a.ch/sandbox/2021/3d-print… Hacky code but I find the results rather nice. Samples printed with @Polymaker_3D PolyWood on a @Prusa3D Mini+.
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A bit of 3d printing fun for a rainy sunday. Designed and printed a lens hood that creates swirly bokeh (the out of focus bits) via mechanical vignetting. At 15 min to print and 20 cents of materials a fairly cheap photo toy. 29a.ch/2021/09/19/swirly-bok…

Swirly Bokeh Lens Hood - 3D Printed

Abstract

29a.ch
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Q1K3, an homage to Quake in 13kb of JavaScript: phoboslab.org/q1k3/ Thanks to @NoFateNet for the music <3
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Wrote a short post on the lamp shades generator explaining how the shapes are generated. :) 29a.ch/2021/08/22/procedural…

Procedural Lamp Shades for 3D Printing

A little experimental tool to procedurally generate lamp shades (or vases) for 3D printing.

29a.ch
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A bit of fun for the weekend. Made a procedural generator for #3Dprinting lamp shades (or vases) using #threejs . 29a.ch/sandbox/2021/lampshad…
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I hacked together a little js library for fitting gradients to images and extracting their primary colors. Curious to see whether people will find a use for it. Feedback is of course always welcome. :) github.com/jwagner/dont-crop…

GitHub - jwagner/dont-crop: A small, dependency free javascript library to fit a gradient to an...

A small, dependency free javascript library to fit a gradient to an image or extract it's primary colors. - jwagner/dont-crop

github.com
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Just having a bit of silly fun way over engineering image dithering using simulated annealing. :) Demo: 29a.ch/sandbox/2020/dither-a…
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Jonas Wagner retweeted
pixls.us@pixlsus7 Jul 2020
Another gorgeous #PlayRaw from our friend @29a_ch of a ridiculously charmed view from the Alps and the setting sun. Come get the #raw and show us how you'd process this incredible view! #FreeSoftware #photography #raw #editing discuss.pixls.us/t/play-raw-…
Photo of the Alps mountains with a lake and sunlight setting on the distant mountains

ALT Photo of the Alps mountains with a lake and sunlight setting on the distant mountains

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#creativecoding with #p5js polar coordinates and simplex noise js implementation by @29a_ch : b2renger.github.io/p5js_patt… Click to regenerate !
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Jonas Wagner retweeted
pixls.us@pixlsus21 Aug 2017
Urban Astrophotography with @29a_ch 29a.ch/2017/06/22/urban-astr… Hard to argue with the results! :) #FOSS #photography #astro
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My first steps into urban astrophotography using a high pass filter to remove light pollution. 29a.ch/2017/06/22/urban-astr… – at Zurich, Switzerland
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Forensically can now extract and identify some more JPEG data like quantization tables to identify forgeries. :) 29a.ch/2017/02/05/jpeg-foren… – at Zurich, Switzerland

JPEG Forensics in Forensically

How to use the new JPEG forensics tools available in the free web based tool Forensically to discover fake images by looking at their quantization tables and meta data.

29a.ch
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