"Houdini" most commonly refers to , a powerhouse 3D software used for visual effects (VFX) in major films and games. However, the name also identifies a modern web development initiative called CSS Houdini.

Every action you take is a "node" in a network. If you model a building and decide to change the base shape later, you don't have to start over; you just swap the first node, and the change "cascades" through the rest of the network.

In the world of web design, Houdini is a set of low-level APIs that give developers direct access to the browser’s .

Houdini is the industry standard for creating complex simulations like fire, water, and destruction. Unlike "traditional" 3D tools (like Maya or Blender) that often use destructive editing, Houdini is entirely and node-based .

The core of Houdini is "Worklets"—small scripts that run during the browser's paint, layout, or animation stages.

I can provide a more technical breakdown or a list of beginner tutorials for either one. Houdini.how - CSS-Tricks

The most popular part of Houdini currently. It lets you use JavaScript to draw directly into a CSS background, making it easy to create complex patterns (like "confetti" or "checkers") that are extremely lightweight.