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sibaku @[email protected] · 2026-01-23 · 19:07 UTC

Today's post was mostly made for myself as a kind of notebook for algorithms and derivations for a few common sampling method for #pathtracing. https://sibaku.github.io/site/sampling/ Whenever I wanted to look these up, I found either differing syntax, missing derivations, or just everything being scattered around. So I wrote it down and added interactive visualizations (just remade them all from the first version actually). Maybe useful to someone else! #math #computergraphics

#computergraphics #math #pathtracing

sibaku @[email protected] · 2024-06-08 · 23:14 UTC

Recently saw some posts here again about #math notation being hard to read and I also saw the famous Freya Holmér tweet about for loops and sums again, so I thought I might just write up some common math notation and how that translates into simple #code. Maybe interesting for #gamedev folks who sometimes have to implement more complex algorithms.
Not sure if that is helpful to anyone, but if so, I would be glad. Utilizes #LiaScript for nicer design and code.

https://liascript.github.io/course/?https://raw.githubusercontent.com/sibaku/liascript_documents/main/math_symbols_to_code/math_symbols_to_code.md

#liascript #gamedev #code #math

sibaku @[email protected] · 2024-01-07 · 10:21 UTC

Because of yesterday's post I looked at some other #liascript docs I made. Don't think I posted this one here, at least not for a while: https://liascript.github.io/course/?https://sibaku.github.io/quaternions/quaternions.md
It is about quaternions! I have seen a lot of #gamedev posts about how confusing and esoteric they are. The doc is about how you can understand the geometric meaning behind unit quaternions just from the formulas! It is just an axis to rotate around and an angle! Also contains a short intro into interpolation with animations! #math #cg

#cg #math #gamedev #liascript

sibaku @[email protected] · 2023-09-05 · 12:59 UTC

Did a bit of refactoring to my #algeobra #javascript library default rendering! Algeobra is a geogebra-esque tool to easily create all kinds of (interactive) #math #geometry diagrams for browsers in code. And now you can also export everything to SVG!
You can find the library here: https://github.com/sibaku/algeobra
There are quite a few demos with code and #JSFiddle as well.
The one for the video (with SVG export) is here: https://jsfiddle.net/kjsL84r0/
#programming #TeachingTools

#teachingtools #programming #jsfiddle #geometry #math #javascript

sibaku @[email protected] · 2023-09-05 · 12:59 UTC

Did a bit of refactoring to my #algeobra #javascript library default rendering! Algeobra is a geogebra-esque tool to easily create all kinds of (interactive) #math #geometry diagrams for browsers in code. And now you can also export everything to SVG!
You can find the library here: https://github.com/sibaku/algeobra
There are quite a few demos with code and #JSFiddle as well.
The one for the video (with SVG export) is here: https://jsfiddle.net/kjsL84r0/
#programming #TeachingTools

#teachingtools #programming #jsfiddle #geometry #math #javascript

sibaku @[email protected] · 2023-09-05 · 12:59 UTC

Did a bit of refactoring to my #algeobra #javascript library default rendering! Algeobra is a geogebra-esque tool to easily create all kinds of (interactive) #math #geometry diagrams for browsers in code. And now you can also export everything to SVG!
You can find the library here: https://github.com/sibaku/algeobra
There are quite a few demos with code and #JSFiddle as well.
The one for the video (with SVG export) is here: https://jsfiddle.net/kjsL84r0/
#programming #TeachingTools

#teachingtools #programming #jsfiddle #geometry #math #javascript

sibaku @sibaku · 2023-09-05 · 12:59 UTC

Did a bit of refactoring to my #algeobra #javascript library default rendering! Algeobra is a geogebra-esque tool to easily create all kinds of (interactive) #math #geometry diagrams for browsers in code. And now you can also export everything to SVG!
You can find the library here: https://github.com/sibaku/algeobra
There are quite a few demos with code and #JSFiddle as well.
The one for the video (with SVG export) is here: https://jsfiddle.net/kjsL84r0/
#programming #TeachingTools

#teachingtools #programming #jsfiddle #geometry #math #javascript

sibaku @[email protected] · 2023-09-05 · 12:59 UTC

Did a bit of refactoring to my #algeobra #javascript library default rendering! Algeobra is a geogebra-esque tool to easily create all kinds of (interactive) #math #geometry diagrams for browsers in code. And now you can also export everything to SVG!
You can find the library here: https://github.com/sibaku/algeobra
There are quite a few demos with code and #JSFiddle as well.
The one for the video (with SVG export) is here: https://jsfiddle.net/kjsL84r0/
#programming #TeachingTools

#teachingtools #programming #jsfiddle #geometry #math #javascript

sibaku @[email protected] · 2023-04-08 · 14:15 UTC

Added another tutorial. This one is about showing the idea behind the wonderful separating axis theorem (SAT). We can check, if two shapes don't intersect, if we can find a separation line. You can find the full code together with online JSFiddle versions and the library itself here: https://github.com/sibaku/algeobra
#javascript #math #collisiondetection #programming

#programming #collisiondetection #math #javascript

sibaku @[email protected] · 2025-02-20 · 00:06 UTC

Saw some post a few days ago showing some kind of fractal with varying density encoding an image, so I tried it as well :) This uses a Hilbert curve with adaptive subdivision to approximate the value of an image. The color one uses one curve per channel #programmingArt #mastoArt

#mastoart #programmingart

sibaku @[email protected] · 2024-03-09 · 17:32 UTC

My quick sketch to jump in to honor Akira #Toriyama, an incredible artist who was a big part of my childhood and was also a big factor in getting me interested in drawing. Period accurate graph-paper school lesson doodle like drawing of Son Goku #art #mastoArt

#mastoart #art #toriyama

sibaku @[email protected] · 2024-02-20 · 19:43 UTC

Randomly thought about this topic tonight. One scary #math symbol that comes up in many places is the #Laplacian, that weird triangle Δ! What even is that? While you can do some smart math things to get an intuition for what it means, you can also try to make some simpler calculations! Turns out, it can be seen as a measure of how much a value at a point differs from its surroundings! Always liked this approach to show it to people, since imho you don't need too much background knowledge!

#laplacian #math

sibaku @[email protected] · 2023-08-22 · 17:56 UTC

Hm... I think I will do a little visual intuition #LiaScript doc about the determinant and how it corresponds to area/volume 🤔 I feel that many people are very confused by the #determinant when they encounter it in a linear algebra #math class. At least in mine, it was this weird abstract function (granted, this way of going about things also has its positives), not like a geometric thing. Then you see it popping up in like multivariate integrals with volume elements and its like... huh?

#math #determinant #liascript

sibaku @[email protected] · 2023-07-31 · 16:39 UTC

Here is an old shadertoy demo I made: Three shadow mapping techniques. Basic, PCF and variance shadow maps :)
Have a look, if you want to see how to implement the base level versions :)
https://www.shadertoy.com/view/MlKSRm
#graphicsprogramming #rendering #shadertoy #shadowmap

#shadowmap #shadertoy #rendering #graphicsprogramming

Sabaku | BUBSY 4D DEMO OUT @[email protected] · 2026-01-13 · 14:37 UTC

#PortfolioDay My name is Sabaku, I'm a german based gamedev and artist, who worked on bangers like #Skellboy #Bubsy4D and #DemonTides . I feel familar in multiple mediums like Pixelart, 3D Asset Production and digital conceptart. I'm planning to open commissions somewhat this year!

#portfolioday #skellboy #bubsy4d #demontides

Resolviendo la incógnita 🌐 @[email protected] · 2025-05-14 · 19:04 UTC

El Simbakubwa kutokaafrika era un depredador del Mioceno temprano (23000-22000 años) de tamaño incierto, pues podría ser más grande que un león o incluso un oso polar. Se especializaría en cazar a grandes herbívoros. 📷Mauricio Anton #mioceno #miocene

#mioceno #miocene