https://github.com/rreusser/demos

One repo to rule them all.
https://github.com/rreusser/demos

canvas d3 javascript plotlyjs regl threejs webgl

Last synced: about 1 month ago
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One repo to rule them all.

• Host: GitHub
• URL: https://github.com/rreusser/demos
• Owner: rreusser
• License: mit
• Created: 2016-10-23T05:33:20.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2019-02-24T07:08:04.000Z (about 6 years ago)
• Last Synced: 2025-02-27T06:12:07.290Z (about 2 months ago)
• Topics: canvas, d3, javascript, plotlyjs, regl, threejs, webgl
• Language: HTML
• Homepage: http://rreusser.github.io/sketches/
• Size: 32.3 MB
• Stars: 215
• Watchers: 12
• Forks: 13
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# demos

This is hopefully one repo to manage all the demos I've been accumulating or at least a place to dump the new ones. The goal here is to learn new things and test limits.

These demos are made using [regl](https://github.com/regl-project/regl), [plotly.js](https://github.com/plotly/plotly.js), and [d3.js](https://d3js.org/).

  

    

      

      2D Kuramoto-Sivashinsky equation,
∂u/∂t + ∇⁴u + ∇²u + ½ |∇u|² = 0

    

    

      

      Periodic 3-body trajectories using RK4(5) Cash-Karp adaptive integration.

    

    

      

      Rayleigh-Taylor and Kelvin-Helmholtz hydrodynamic instabilities.

    

  

  

    

      

      GPGPU Integration of particle geodesics in Schwarzschild spacetime (a black hole!)

    

    

      

      Analytical fluid flow over an airfoil using the Kármán–Trefftz transform. Computed and visualized in a single GPU pass.

    

    

      

      1M particles interacting as a two-dimensional gravitational continuum

    

  

  

    

      

      Vortex, rendered as a single signed distance function

    

    

      

      Umbilic Torus

    

    

      

      Integrating Strange Attractors on the GPU

    

  

  

    

      

      Minimize the McCormick function using Powell's method with golden section line search.

    

    

      

      Chaos via the logistic map: x[n+1] = r*x[n]*(1-x[n])

    

    

      

      Motion blur the simple way

    

  

  

    

      

      Tinkerbell map

    

    

      

      Roots of a polynomial with random coefficients

    

    

      

      Smooth Life on the GPU

    

  

  

    

      

      1D diffraction of a wave packet passing within a known range at a known time.

    

    

      

      Frequency-domain solution of the 1D Schrodinger Equation with Perfectly Matched Layers (PML)

    

    

      

      N-body gravitational trajectories using RK4(5) Cash-Karp adaptive integration.

    

  

  

    

      

      Classic fluid simulation from Visual Simulation of Smoke.

    

    

      

      The Lamb wave dispersion relation in the complex plane

    

    

      

      Computing the zeros of a complex analytic function via contour integration

    

  

  

    

      

      Screen Space Ambient Occlusion (SSAO)

    

    

      

      GPGPU Erosion

    

    

      

      2D wave equation

    

  

  

    

      

      Rayleigh waves in an elastic medium

    

    

      

      Ultrasonic waves

    

    

      

      Flamm's parabaloid (subject to caveats, a representation of curved spacetime around a black hole)

    

  

  

    

      

      747 (modeled with Wings 3D)

    

    

      

      Sailplane (modeled with Wings 3D)

    

    

      

      K-means clustering meets Lorenz Attractor

    

  

  

    

      

      Brachistochrone (curve of fastest descent)

    

    

      

      Fresnel reflection

    

    

      

      Principle of Least Action

    

  

  

    

      

      Double-pendulum chaos

    

    

      

      Potential flow over a cylinder conformally mapped into an airfoil via the Karman-Trefftz transform

    

    

      

      Gaussian Mixture estimation via Expectation Maximization (EM)

    

  

  

    

      

      Three-Scroll Unified Chaotic System Attractor #2 (TSUCS2)

    

    

      

      ❄️❄️ Fractals ❄️❄️

    

    

      

      Schrodinger

    

  

  

    

      

      Transfinite interpolation

    

    

      

      🕺

    

    

      

      Hyperbolic Grid Generation

    

  

  

    

      

      Carpet plots

    

    

      

      GPGPU prefix sum

    

    

      

      Catmull-Rom splines

    

  

  

    

      

      GPU particle simulation

    

    

      

      Fun with the SoundCloud API, Part 2: this time with godrays

    

    

      

      Fun with the SoundCloud API, Part 1

    

  

  

    

      

      /*airfoil*/P([rn(0,7,.01). map(i=>(x=111*c(i)-10,y=111 *s(i)+c(t/1e3)*10,$=(x*x+y* y)/1e4,[x+x/$,y-y/$]))]).a( 'd',ln())

    

    

      

      Numerical methods for the first-order wave equation

    

    

      

      Recursion!

    

  

  

  

© 2016 Ricky Reusser. MIT License.