Audio Reactive Plexus in TouchDesigner (Python + OpenCV FLANN)

In this tutorial I show how to build an audio-reactive Plexus network in TouchDesigner using Python inside a Script TOP and OpenCV FLANN.
Everything is built from scratch, without SOP instancing or external 3D tools, focusing on a clean and portable Python-based workflow.

What you’ll learn:
How to create a Plexus effect in TouchDesigner using Script TOP
Using OpenCV FLANN (cv2.FlannBasedMatcher)
Audio analysis with CHOPs
Audio-reactive modulation

Requirements
TouchDesigner 2025.x (Windows)
No external Python installation required
OpenCV (opencv-python) installed inside TouchDesigner
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FREE plexus_script/project file on Patreon 👇
https://www.patreon.com/posts/audio-reactive-148204420
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00:00 Intro
00:07 Install Touchdesigner ( Non-Commercial )
00:39 Create Folder
00:49 Textport Touchdesigner
01:01 Tutorial
02:03 Script TOP
08:51 CHOP
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