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Reinder Nijhoff

@reindernijhoff.net
283 followers 461 following 40 posts

reindernijhoff.net

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Reinder Nijhoff @reindernijhoff.net · 28/09/2026
And also check his shader version: www.shadertoy.com/view/fXc3RB
shadertoy.com
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Reinder Nijhoff @reindernijhoff.net · 28/09/2026
This is truly amazing work
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James Brown @ancient.bsky.social · 20/09/2026
I made a video about a homebrew 3D display that uses LEDs and rapidly spinng parts! www.youtube.com/watch?v=npmm...
youtube.com
Scanning Light Field Display
YouTube video by Ancient
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Matt Henderson @matthen.com · 15/08/2026
Game of Life on Penrose tiles
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Aras Pranckevičius @aras-p.bsky.social · 10/08/2026
"GPU texture address mode collies" meme continues to be my main achievement in life, I think.
Border collie, Clamp collie, Repeat collie, Mirror collie
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Reinder Nijhoff @reindernijhoff.net · 23/07/2026
Hi! Yes, I already made that more than a year ago, but I wasn't happy with the amount of latency. I will have a new look at it when I'm back home.
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Reinder Nijhoff @reindernijhoff.net · 22/07/2026
work in progress demo.eigen.is
demo.eigen.is
eigen
Eigen is your minimal, secure workspace in the cloud. Simple and secure. You control your data.
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Ryan Moulton @moultano.bsky.social · 19/06/2026
I spent the last month obsessed with finding colors that can't be displayed on a conventional screen. This is what I found. moultano.wordpress.com/2026/06/19/w...
moultano.wordpress.com
Where to Find the Colors Your Screen Can’t Show You
An atlas of the vibrance of the real world
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Rune Skovbo Johansen @runevision.bsky.social · 30/03/2026
My erosion filter is out! Video, blog post, and shader source. It emulates erosion without simulation, so it's fast, GPU friendly, and trivial to generate in chunks. Explainer video: www.youtube.com/watch?v=r4V2... Companion blog post: blog.runevision.com/2026/03/fast... #ProcGen #vfx #GameDev
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Reinder Nijhoff @reindernijhoff.net · 04/03/2026
Happy 303 Day by srtuss - ~430 lines of code
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Kris Temmerman @kristemmerman.bsky.social · 13/02/2026
Not sure what it is, but it is.... My new Portfolio! (best on desktop/laptop) neuroproductions.be
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Jason Fugate @jasonfugate.bsky.social · 25/02/2026
Every single senior engineer that I have talked to in the last two weeks has had what I would call "existential melancholy." Our all-company meeting last Monday had the phrases "staring down the barrel of the end of our careers" and "preparing for the threat of rogue AI" spoken in total seriousness.
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Xor @xordev.com · 10/02/2026
Here are some techniques I discovered through 14 years of shader programming:
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Reinder Nijhoff @reindernijhoff.net · 06/02/2026
Beautiful! I just added twigl support to oneshader.net! :) And I’m really eager to keep improving the platform, so if you want to test it out and share some feedback, I’d love to hear your thoughts.
oneshader.net
OneShader
The online shader editor. Create and share real-time procedural art with just one WebGL shader. Joy is in the craft.
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RenderQueue @renderqueue.dev · 15/01/2026
New (old) prototype online renderqueue.dev/sportswear-c...
renderqueue.dev
The RenderQueue - Sportswear
IBL combined with pre-baked shadow and ao maps
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Reinder Nijhoff @reindernijhoff.net · 14/01/2026
Hi! Thanks for the feedback, and yes: I understand. I probably won't change the canvas size for historical reasons, but I could add an option to crop/resize to a non-square aspect ratio on export. Not sure if that helps?
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Reinder Nijhoff @reindernijhoff.net · 08/01/2026
You can find a blog post with technical details about this demo here: reindernijhoff.net/2026/01/webg...
reindernijhoff.net
WebGPU SDF Editor: Real-Time Signed Distance Field Modeling - reindernijhoff.net
This is a guest post on my website. It is written by Johan Holwerda about the SDF editor he built for the RenderQueue. I’ve been working on a WebGPU-based SDF editor for modeling using signed distance...
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Reinder Nijhoff @reindernijhoff.net · 08/01/2026
@johanholwerda.bsky.social pushed a WebGPU real-time SDF-editor to the RenderQueue: renderqueue.dev/sdf-editor
renderqueue.dev
The RenderQueue - SDF editor
Point renderer for hard surfaces
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Turtletoy @turtletoy.net · 06/06/2025
Hexagon Truchet by reinder. turtletoy.net/turtle/e5df5b10e0 #turtletoy
turtletoy.net
Hexagon Truchet
My first Truchet tiles experiment. #truchet #hexagon
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Hacker News 200 Points @newsyc200.bsky.social · 08/12/2025
Turtletoy turtletoy.net (news.ycombinator.com/item?id=461384…)
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Reinder Nijhoff @reindernijhoff.net · 18/11/2025
Thanks!
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Reinder Nijhoff @reindernijhoff.net · 14/11/2025
Hi @iquilezles.bsky.social , when I try to use the API, I always get an error message. Is this something Pol and you are aware of, and are going to fix? Is there something I can help with?
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Reinder Nijhoff @reindernijhoff.net · 25/10/2025
See reindernijhoff.net/2025/10/eige...
reindernijhoff.net
Eigen: Building a Workspace - reindernijhoff.net
Last spring I started wondering: how hard would it be to build my own Google Workspace? Given the situation in the USA and the power large tech companies hold, a European alternative feels needed. Of ...
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Reinder Nijhoff @reindernijhoff.net · 25/10/2025
eigen.is !
eigen.is
eigen
Eigen is your minimal, secure workspace in the cloud. Simple and secure. You control your data.
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Reinder Nijhoff @reindernijhoff.net · 25/10/2025
hi @mmalex.bsky.social , have you ever taken a look at Dittytoy dittytoy.net/ditty/243733... ?
dittytoy.net
Oxygene4.js | Dittytoy
The song that inspired every electronic musician.
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Reinder Nijhoff @reindernijhoff.net · 19/10/2025
Yes, I think the API doesn’t work with the cloudflare protection in place. This is something @iquilezles.bsky.social should have a look at.
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mmalex @mmalex.bsky.social · 04/09/2025
been a couple years since I wrote a dumb pathtracer-in-a-shader; felt that itch again and decided to brush off the cobwebs by 'covering'/'blatantly ripping off' noby's brilliant 10yo 4k www.youtube.com/watch?v=9r8p...
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Reinder Nijhoff @reindernijhoff.net · 29/08/2025
Then you also might like this: dittytoy.net/ditty/b3585f... @dittytoy.net
dittytoy.net
Techno beat 1 | Dittytoy
Using a shared filter for compression. Slightly different with each playback.
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Turtletoy @turtletoy.net · 27/08/2025
Post-it Mania 🟨 by Jurgen. turtletoy.net/turtle/80f5254064 #turtletoy
turtletoy.net
Post-it Mania 🟨
An implementation to resemble a concept I saw in a piece by u/KennyVaden at https://www.reddit.com/r/generative/comments/146sxqo/disruptor_r_code/ https://turtletoy.net/turtle/80f5254064#shapes=4,layers=7,distributionBySize=1,postitsPerLayer=500,directionVariation=60,sizeVariation=150,border=3,sizeRandomness=2.1,onlyOutLines=0 "Post-it" is a registered trademark owned by 3M
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idsoftwaretiago.bsky.social @idsoftwaretiago.bsky.social · 26/08/2025
Slides from my SIGGRAPH 2025 and CEDEC 2025 talks “Fast as Hell: idTech 8 Global Illumination”, are now publicly available through the Advances in Real-Time Rendering in Games course. Lecture recordings will be available soon on the course's YouTube channel.
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Reinder Nijhoff @reindernijhoff.net · 26/08/2025
Ohjee, moet ik me nu in screenrecorders gaan verdiepen... :( Gelukkig is het op dittytoy.net zelf gewoon met geluid!
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Reinder Nijhoff @reindernijhoff.net · 26/08/2025
I added an ascii-art based audio visualizer to @dittytoy.net dittytoy.net/ditty/243733...
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Sebastian Lague @sebastianlague.bsky.social · 16/08/2025
My latest coding adventure is now up on YT -- some experiments with ray-tracing glass and water, and the cool caustics they can cause youtu.be/wA1KVZ1eOuA?...
youtu.be
Coding Adventure: Ray-Traced Glass and Caustics
YouTube video by Sebastian Lague
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Dittytoy @dittytoy.net · 22/07/2025
mund4ne by nabr. dittytoy.net/ditty/1f740cf4e3 #dittytoy
dittytoy.net
mund4ne
melodic flows of variable tone and loudness
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Dittytoy @dittytoy.net · 26/06/2025
Modal synth by skythedragon. dittytoy.net/ditty/ff9c5b6bc3 #dittytoy
dittytoy.net
Modal synth
Modal synthesizer, using 8 bandpass filters
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Reinder Nijhoff @reindernijhoff.net · 30/04/2025
The sound of connecting to the Internet before the 2000s.
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Patryk Wychowaniec @piterolex.bsky.social · 16/04/2025
yo, i think i've accidentally discovered something new - pwy.io/posts/marchi...
pwy.io
Marching Events: What does iCalendar have to do with ray marching?
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Turtletoy @turtletoy.net · 07/04/2025
one-liner brick torus by flockaroo. turtletoy.net/turtle/e1abd44258 #turtletoy
turtletoy.net
one-liner brick torus
revisited my 1st turtle... here made out of one single path (just pen up/down for hidden lines) (and its only brick if "nth" is uneven)
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Turtletoy @turtletoy.net · 08/04/2025
Plottable Multi-Scale Truchet by reinder. turtletoy.net/turtle/9a79d5c213 #turtletoy
turtletoy.net
Plottable Multi-Scale Truchet
I changed https://turtletoy.net/turtle/fa14c628d4 (by @jurgen) a bit, so it only draws the edges.
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Reinder Nijhoff @reindernijhoff.net · 31/03/2025
This ditty is extremely nice!
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Turtletoy @turtletoy.net · 20/03/2025
our new land by ge1doot. turtletoy.net/turtle/b2fdeed2d8 #turtletoy
turtletoy.net
our new land
Based on https://codepen.io/ge1doot/pen/Vymqvp
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Turtletoy @turtletoy.net · 27/03/2025
Contour Lines Island by reinder. turtletoy.net/turtle/09e8dda306 #turtletoy
turtletoy.net
Contour Lines Island
This turtle uses the https://turtletoy.net/turtle/104c4775c5 utility code to visualize the heightfield of a small island (created using https://turtletoy.net/turtle/6e4e06d42e). Todo: add compass. #contourlines #island #simplex #noise
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Turtletoy @turtletoy.net · 19/02/2025
moebius gears by flockaroo. turtletoy.net/turtle/9ddc6d4dc5 #turtletoy
turtletoy.net
moebius gears
getting the turtle into gears... ;-) derived from "moebius gears" https://www.shaderoo.org/?shader=3GQsG3 by (sloppily) sorting polys in z-direction and then using reinder's occlusion magic from "Cubic space division #2"
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Reinder Nijhoff @reindernijhoff.net · 10/03/2025
@flockaroo.bsky.social
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Dittytoy @dittytoy.net · 02/03/2025
93' Ditty Jungle by srtuss. dittytoy.net/ditty/ad77e03e84 #dittytoy
dittytoy.net
93' Ditty Jungle
Mixing sampling & synth techniques
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Reinder Nijhoff @reindernijhoff.net · 06/03/2025
An old WebGL demo by me. You can find a blog post about the project here: reindernijhoff.net/2019/03/wolf...
reindernijhoff.net
Wolfenstein: Ray Tracing On using WebGL1 - reindernijhoff.net
Since the introduction of the Nvidia RTX graphics cards last summer, ray tracing is back again. In the last months, my Twitter feed flooded with a continuous stream of RTX On / RTX Off comparisons. Af...
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Turtletoy @turtletoy.net · 05/03/2025
Hexogonal Tree ⬡ by Jurgen. turtletoy.net/turtle/cd1be868a6 #turtletoy
turtletoy.net
Hexogonal Tree ⬡
I saw segaldigital implementation (https://www.reddit.com/r/PlotterArt/comments/q84yjs/some_dots_some_hexagons/) of Leon Rische's blogpost https://www.leonrische.me/pages/generative_art_with_cfgs.html and I thought... nice! https://turtletoy.net/turtle/cd1be868a6#length=31,lengthRatio=0.5,thickness=7,thicknessRatio=0.6,generationLimit=18,iterationLimit=2,invForkProbPerGen=0.88,invForkProbPerIter=0.79 https://turtletoy.net/turtle/cd1be868a6#length=75,lengthRatio=0.5,thickness=7,thicknessRatio=0.6,generationLimit=9,iterationLimit=2,invForkProbPerGen=0.88,invForkProbPerIter=0.79,circleProb=0.1
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RenderQueue @renderqueue.dev · 04/03/2025
Particle Dance Particles are spawned at the surface of an animated skinned mesh. renderqueue.dev/particledance
renderqueue.dev
The RenderQueue - Particle Dance
Dancing character made out of particles
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Turtletoy @turtletoy.net · 03/03/2025
Fingerprints by reinder. turtletoy.net/turtle/70e2e00c6f #turtletoy
turtletoy.net
Fingerprints
Procedural fingerprints
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Reinder Nijhoff @reindernijhoff.net · 01/03/2025
Super cool!
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