Intentional Anonymity
Thoughts on anonymity, accidental and otherwise
Ricky Reusser's Notebooks
Interactive notebooks on graphics, math, and creative coding
Latest posts
Time Until Totality
A world map colored by how long until each location next sees totality
SmoothLife
Conway's Game of Life generalized to a continuous domain, computed in WebGPU
An Elastic Möbius Strip
Möbius strips as a test problem for doing some real linear algebra in the browser
Zooming Aperiodic Monotile
A (sort of) infinite zooming spectre aperiodic monotile
Rendering the Aperiodic Monotile
Rendering the spectre a chiral aperiodic monotile of Smith, Myers, Kaplan, and Goodman-Strauss
Line-Sweep Terrain Lighting
Terrain shadowing and ambient occlusion for web maps using fast horizon visibility
Costa's Minimal Surface
Trying to untangle the parameterization of Costa's minimal surface
Rewriting My Website in Observable Notebook Kit
How I migrated this website from Idyll to Observable Notebook Kit
Boy's Surface
Boy's surface, an immersion of the real projective plane in three-dimensional Euclidean space
Denali Terrain
Cobbling together a 3D WebGPU terrain viewer
Visualizing Sloan Digital Sky Survey Data
Visualizing 3.3 million galaxies and quasars from the Sloan Digital Sky Survey
Hess-Smith Panel Method
Using the Hess-Smith panel method to compute the aerodynamic flow around an airfoil
Multi-Scale Turing Patterns in WebGPU
Interactive multi-scale Turing patterns in WebGPU
Strange Attractors in WebGPU
Integrating and rendering strange attractors in WebGPU from start to finish
WebGPU Instanced Lines
GPU-accelerated line rendering for WebGPU
Zoomable Multi-Layer Plots in Notebook Kit
Interactive mathematical plotting in Observable Notebook Kit
Simulating the 2D Kuramoto-Sivashinsky Equation in WebGPU
The 2D Kuramoto-Sivashinsky equation, a chaotic PDE modeling pattern formation in combustion fronts and thin films
Perfectly Matched Layers for the Wave Equation
An quick application of Perfectly Matched Layers for absorbing boundary conditions
Reflecting on Two Years of Yoga
Contemplating where we're at after attending yoga pretty consistently for a couple years
Hello, Observable Notebooks 2.0!
Kicking the tires of Observable's new notebook tooling!
Clifford and de Jong Attractors
Clifford and de Jong strange attractors
Chaotic Magnetic Pendulum
Interactive visualization of a magnetic pendulum demonstrating chaotic dynamics
Spring Training on the Treadmill
Quantifying treadmill efforts (to the point of injury)
Speed Climbing World Record Progression
Plotting and extrapolating trends in competitive speed climbing
Sliced Optimal Transport
Approximate pixel redistribution between images using sliced optimal transport
Series Acceleration with Shanks Transformation
The Shanks transformation for series acceleration, applied to the arctangent formula for π
Cubic basis vs. Hermite interpolation
Comparing cubic interpolation using different basis functions
Bicubic Texture Interpolation using Linear Filtering
Smooth bicubic texture filtering using the GPU's built-in bilinear interpolation
Knocking Down the Gates with our Friend Jacobi
Using Jacobi elliptic functions to solve an optimization problem about falling poles and large-amplitude pendulum dynamics
Night and Day
Earth's solar terminator on a Mapbox map using NASA Black Marble imagery and WebGL shaders
Fast Generalized Winding Numbers in 2D
Fast generalized winding numbers in 2D for robust inside-outside queries on arbitrary polygons
HTML+CSS Periodic Three-Body Orbits
Animating periodic three-body orbits using pure CSS keyframe animations generated from Fourier decomposition
Lawson's Klein Bottle
Lawson's Klein bottle, a generalization of the Clifford torus in 4D space
Computing π with the Bailey-Borwein-Plouffe Formula
Computing hexadecimal digits of π at arbitrary positions using the Bailey-Borwein-Plouffe formula
The Double Pendulum Map
Visualizing the phase space of simple and compound double pendulums
Malkus Waterwheel
A chaotic mechanical system whose dynamics map to the Lorenz attractor
Selecting the Right Opacity for 2D Point Clouds
An opacity formula for consistent visual appearance in brute-force point cloud rendering
Adaptive Contouring in Fragment Shaders
Adaptive contour rendering in fragment shaders using screen-space derivatives for smooth, resolution-independent contour lines
WebGPU Voronoi Diagrams using the Jump Flooding Algorithm
Computing Voronoi diagrams and distance fields on the GPU using the Jump Flooding Algorithm
Sphere Eversion
The Bednorz and Bednorz analytic sphere eversion, a continuous deformation turning a sphere inside out without creasing or tearing
Transparency for 3D Surfaces
A comparison of three approaches to rendering transparent 3D surfaces in WebGPU
Toiletpaperfullerenes and Charmin Nanotubes
Constructing fullerenes with toilet paper tubes
Particle-Mesh Gravity in WebGPU
2D gravitational N-body simulation using the particle-mesh method
Periodic Planar Three-Body Orbits
A catalog of periodic three-body orbits with topological classification via free group words
Multi-Scale Turing Pattern Gallery 2
Another gallery of multi-scale Turing patterns
Multi-Scale Turing Pattern Gallery 1
A gallery of multi-scale Turing patterns
Aligning 3D Scans
Automatically orienting 3D scans by computing principal axes from surface normals
Things I Learned the Hard Way Using React Native
An obsolete collection of lessons learned from eight months of React Native development
A Series of Unfortunate Things I Programmed One Time
Reflections on a decade of programming projects