I made a video about a homebrew 3D display that uses LEDs and rapidly spinng parts! www.youtube.com/watch?v=npmm...
Scanning Light Field Display
YouTube video by Ancient
youtube.com
"GPU texture address mode collies" meme continues to be my main achievement in life, I think.
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...
Where to Find the Colors Your Screen Can’t Show You
An atlas of the vibrance of the real world
moultano.wordpress.com
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
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.
Here are some techniques I discovered through 14 years of shader programming:
@johanholwerda.bsky.social pushed a WebGPU real-time SDF-editor to the RenderQueue: renderqueue.dev/sdf-editor
The RenderQueue - SDF editor
Point renderer for hard surfaces
renderqueue.dev
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...
Post-it Mania 🟨 by Jurgen. https://turtletoy.net/turtle/80f5254064 #turtletoy
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
turtletoy.net
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.
@ceruleite.bsky.social · last yr.#SIGGRAPH2025 Advances in Real-Time Rendering in Games course slides for "Fast as Hell: idTech8 Global Illumination” talk by @idsoftwaretiago.bsky.social from @idsoftware.bsky.social are now online advances.realtimerendering.com/s2025/index....
I added an ascii-art based audio visualizer to @dittytoy.net dittytoy.net/ditty/243733...
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?...
Coding Adventure: Ray-Traced Glass and Caustics
YouTube video by Sebastian Lague
youtu.be
yo, i think i've accidentally discovered something new - pwy.io/posts/marchi...
Marching Events: What does iCalendar have to do with ray marching?
pwy.io
Contour Lines Island by reinder. https://turtletoy.net/turtle/09e8dda306 #turtletoy
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
turtletoy.net
moebius gears by flockaroo. https://turtletoy.net/turtle/9ddc6d4dc5 #turtletoy
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"
turtletoy.net