Blog

Notes from inside the workshop

A slow blog about frame by frame animation and the software built to serve it. Written when there is something worth saying, which is less often than a content calendar would like.

A stroke is not a line
To build a pressure-sensitive brush in the browser, you have to stop drawing lines and start drawing silhouettes. Here is the math, the code, and the hardware quirks behind it.
15 July 20267 min
Undo was lying to you
This post breaks down a subtle but destructive bug in an animation tool's Ctrl+Z feature. It explores how shifting from an isolated, per-frame history model to a global, document-level state not only fixed a glaring undo logic flaw, but unexpectedly improved the application's memory efficiency and user experience through immutable data structures.
15 July 20267 min

A stroke is not a line

Undo was lying to you