Dimitri Diakopoulos

Happy to announce: ReSWD. Sliced Wasserstein Distances are quite powerful, but they perform a Monte Carlo (MC) integration (over random directions). During an optimization this can lead to noisy gradients due to variance.

Project page: reservoirswd.github.io

simple algorithm, siiiiick beats

wave_tracer 0.1 released
wavetracer.dev

wave_tracer combines path tracing and wave optics in a novel way, for practical general-purpose wave simulations across a variety of EM modalities and applications.

Everyone please follow this bot. It genuinely makes me chuckle at least once a day. I’d play the videogame!

meshoptimizer v0.25 is out! Featuring new simplification function that optimizes positions and attributes for appearance, experimental permissive mode to simplify faceted regions with selective seam preservation, regularization option for improved tessellation quality and deformation, multiple ...

Choosing the right colormap is tricky, too often, they hide subtle details or distort the data. Our new method transforms colormaps to boost local contrast and reveal just noticeable differences, all while keeping the visualization perceptually accurate and accessible.

dl.acm.org/doi/10.1145/...

Methods like NeRF and Gaussian Splats model the world as radioactive fog, rendered using alpha blending. This produces great results.. but are volumes the only way to get there?🤔 Our new SIGGRAPH'25 paper directly reconstructs surfaces without heuristics or regularizers.

A webpage for an interactive shader animation:
bleuje.com/js_sketches/...

GitHub - jakericedesigns/SteerablePerlinNoise: Implementations of "Steerable Perlin Noise" as presented at Siggraph 2025 Implementations of "Steerable Perlin Noise" as presented at Siggraph 2025 - jakericedesigns/SteerablePerlinNoise

One of my coworkers, @tearsofjake.bsky.social, has a talk at SIGGRAPH this year about this really cool steerable perlin noise technique that was used on Moana 2. He's just posted some handy reference implementations for Houdini, Unity, Godot, and Blender; check it out!

github.com/jakericedesi...

GitHub - timmitra/visionosresources: My collection of interesting visionOS code and resources My collection of interesting visionOS code and resources - timmitra/visionosresources

Here are the visionOS resources you've been looking for. Well some of them anyway. Just added @vrhermit.com's Getting Started With Widgets.
github.com/timmitra/vis...

We present a simplified, p5.js version of the vocal tract synthesizer from Neil Thapen's popular Pink Trombone, adapted for use in a creative coding assignment concerned with interaction design and absurd puppeteering.
Interactive: editor.p5js.org/golan/sketch...
Writeup: github.com/golanlevin/6...

really nice work

Algorithms for making interesting organic simulations Article explaining simulation algorithms that produce complex organic behaviours, starting with the classic physarum algorithm from Jeff Jones.

I wrote this article explaining algorithms for physarum-style simulations
bleuje.com/physarum-exp...

I need (want) a 500k CNC machine but the economics of a hobby owner simply don’t work. Need something like a makerspace where the membership signup fee is like 50k.

Foundations of Computer Vision The print version was published by

Our computer vision textbook is now available for free online here:
visionbook.mit.edu

We are working on adding some interactive components like search and (beta) integration with LLMs.

Hope this is useful and feel free to submit Github issues to help us improve the text!

Phycomyces nitens - Hugo de Vries, 1879

From the The Art of Knowledge: Educational Botanical Wall Charts collection

geheugen.delpher.nl/en

Mesh intersections is hard ! Three years of agonizing pain summarized in my article that just got accepted to ACM Transactions on Graphics

dl.acm.org/doi/10.1145/...

The implementation and the expansion-based arithmetic kernel are available in geogram: github.com/BrunoLevy/ge...

⭐ Image editing without paired data, delivering on the promise of RGB<->X! Edit in Intrinsic space, get back your image with the desired modification!
The method is quite fun too, conditional token optimization and noise inversion.

Around The World, Part 23: Hydraulic erosion As I mentioned last time, I’m currently working on a full rewrite of the game, with a focus on building a solid technical foundation first. But because much of that is boring work, I allowed myself a ...

This blog is a miracle for terrain nerds
frozenfractal.com/blog/2025/6/...

Gradientspace Toolbox Gradientspace Toolbox provides a suite of in-Editor Tools to improve content-creation workflows. Find our Tools in the Gradientspace tab in Modeling Mode! For more information and video demonstrations...

Gave up on trying to sell my Unreal Engine plugin, it's free now if you happen to want to 3D-paint textures in the Editor, or make things out of little grids-of-shapes: www.fab.com/listings/058...

Feeling nostalgic for vacuum fluorescent displays of my youth, I've added p5.js implementations of 7, 14, and 16-segment procedural typefaces to my archive of p5-single-line-font-resources: github.com/golanlevin/p...

The SIGGRAPH Physically Based Shading course is back this year: blog.selfshadow.com/publications...

Our #SGP25 work studies a simple and effective way to uniformly sample implicit surfaces by casting rays. (1/9)

“Uniform Sampling of Surfaces by Casting Rays” w/ @abhishekmadan.bsky.social @nmwsharp.bsky.social and Alec Jacobson

Selena's #Siggraph25 work found a simple, nearly one-line change that greatly eases neural field optimization for a wide variety of existing representations.

“Stochastic Preconditioning for Neural Field Optimization” by Selena Ling, Merlin Nimier-David, Alec Jacobson, & me.

Richard Garriott grew up in Texas so maybe there’s a connection there.

I wrote about my retro winter adventure where I built my childhood dream PC fabiensanglard.net/2168.

this is cool!!

Understanding The Math Behind ReSTIR GI Recently, I had the pleasure of contributing to Nvidia’s Zorah project, the flagship demo for the RTX 50 Series GPUs. My primary role was to provide technical support for light transport in Zorah, whi...

Here is a new blog post of mine, where I dive deep into the theory and math behind ReSTIR GI.

Big thanks to Markus Kettunen for verifying the theory, reviewing the article, and catching a key detail I had missed.

agraphicsguynotes.com/posts/unders...

Stefan Gustavson has put out an open access book on procgen textures.

liu.diva-portal.org/smash/record...

github.com/stegu/noisei...

Please share widely:
The EPFL Geometry Computing Laboratory is launching its third call for an Artist / Designer Residency for the fall of 2025!
More information on how to apply here:
www.epfl.ch/labs/gcm/ope...

#design #art #residency #research