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EVAN WALLACE


PROFESSIONAL WORK


FIGMA (2012-2021)

I'm one of the cofounders of Figma, a collaborative browser-based interface
design tool. My main contributions were to the rendering engine, the multiplayer
collboration service, the vector and text editors, and the plugin system.

Read more...


COMPILERS


ESBUILD (2020-PRESENT)

My biggest open source project is esbuild, a very fast JavaScript and CSS
bundler. It's main purpose is to bring about a new era of build tool
performance. At the time I released it, commonly-used web development tools were
10-100x slower than esbuild.

Visit website...


SKEW (2015-2019)

I designed the Skew programming language with an optimizing compiler to generate
compact and efficient JavaScript. It was the technology behind Figma's
lightweight mobile document renderer.

Visit website...


GRAPHICS


WEBGL WATER (2010)

This project was an experiment in realtime water rendering with WebGL. The focus
was on the rendering aspect, not on the simulation, so the behavior of the water
isn't that realistic. The water heightfield is simulated using a floating-point
texture and the caustics are rendered using the GLSL derivative functions.

View demo...


WEBGL PATH TRACING (2010)

Path tracing is a realistic lighting algorithm that simulates light bouncing
around a scene. This path tracer uses WebGL for realtime performance and
supports diffuse, mirrored, and glossy surfaces.

View demo...


WEBGL IMAGE FILTERS (2011)

Adjust your photos in your browser in realtime with ten different image filters.
This uses WebGL for speed, is entirely client-side, and is open source on
GitHub. It was coded from scratch in 24 hours for HackNY, a hackathon in NYC,
where it won second place.

View demo...


SHADER ARTICLES (2015)

A collection of interesting bits of shader code. All demos use WebGL and run in
all major browsers.

View demos...


GAMES


ROBOTS ARE PEOPLE TOO (2010-2011)

This is a complex side-scrolling platformer with two-player gameplay and a
unique split-screen mechanic. It was developed by me and two other students as a
winter break project and won "Most Fun" in Mozilla's Game On competition.

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APPS


TAGCEPTION (2022)

A macOS app for viewing and editing file system tags. You can nest tags inside
of other tags in a tree hierarchy, which is not something that macOS Finder can
do.

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SOURCE MAP VISUALIZATION (2021)

This is a high-performance source map visualization tool that doesn't freeze
with large source maps. I made it for debugging real-world source map generation
issues in esbuild.

Use app...


THETA MATH (2015)

This web app graphs an equation and allows you to pan and zoom around the
coordinate grid. It's GPU-powered with a custom equation editor and is highly
optimized. It was my winter 2015-2016 break project.

Use app...


DISKITUDE (2010)

Diskitude helps you figure out what is taking up space on your hard drive.
Explore your file system using a radial graph and prune unnecessary files. The
app was also an experiment in Windows executable size reduction and is only 10
KB in size uncompressed.

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FINITE STATE MACHINE DESIGNER (2010)

This is a tool for sketching finite state machines (the abstract kind used in CS
theory classes). The main focus for this project was making the interface as
simple and streamlined as possible because making a FSM is normally a very
time-consuming task.

Use app...


MISCELLANEOUS


ALGORITHM LIST (2022)

A list of algorithms and data structures that I found interesting. Each one
comes with a working demo. Most of them are related to real-time collaboration
in peer-to-peer scenarios.

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DFT VISUALIZATION (2010)

This demonstrates the discrete Fourier transform, which rewrites a discrete
signal as a weighted sum of sines and cosines of various frequencies. I created
it as an in-class demo for the course I was a TA for, CS 123: Introduction to
Computer Graphics.

View demo...