This video shows how to use Optical Flow to use movement in a video source (Movie File In, Video Device In, NDI In, etc) as a trigger. It shows the chain required to take the movement data and make it usable by the Tigger CHOP. Then the output of the Trigger is used to cross […]

You might be familiar with simple motion detection techniques in TouchDesigner using nothing but a webcam, but what if you also wanted some direction information? Using the Optical Flow and some CHOP processing we can get a relatively clean signal of the general direction of movement (Left/Right/Down/Up), for very cheap in all regards – no […]

Get access to 120+ hours of TouchDesigner video training, a private Facebook group where Elburz and Matthew Ragan answer all your questions, and twice-monthly group coaching/mastermind calls here: http://iihq.tv/Trial The feature many developers and artists have been waiting for: optical flow interactivity with particlesGPU 2022! It’s finally here and it gives you the ability to […]