Motion Design · Mar 14, 2026
Inspired by Blob Track TOP
Inspired by Blob Track TOP by pbltrr. Watch the Motion Design video and visit the original Reddit post.
pbltrru/pbltrr
View on RedditOpen the original Reddit post for the version with sound.
Coming from a TouchDesigner background, (Blob Track TOP for color-based motion tracking). I wanted to explore whether that same concept could live entirely in the browser, no installation, no plugins. Try it now, the link is in the video description: [YouTube](https://youtu.be/7-BXTUkfxuo?si=0KWowmeMSdAgJm5_) The result is a p5.js web app that does real-time blob detection based on hue ranges (currently blue and red channels). It runs on PC and mobile, accepts video uploads or live camera input, including phone camera switching between front and rear. Under the hood it uses `loadPixels()` to scan the video frame on a grid, groups matching pixels by HSB values, and draws tracked points with randomized blob geometry driven by `noise()`. Built with some assistance from *Claude*.ai and *Gemini*.
The prompt behind it.
The creator has not shared a public prompt. Visit the original post for more about this work.
Video and prompt by pbltrr. Original post ↗


