Reaction-diffusion on selfie video
Open TekDetek, swipe a reaction-diffusion phone look (start with phone-rd-spots), face the light, record. The field seeds from motion in frame.
TekDetek is not completely free. This workflow is free to try and edit. A free record is watermarked and 20 seconds. Pro is clean and unlimited.
Free
Open the app. Swipe and edit looks — phone reaction-diffusion and cellular automata included. Luma detection. Hand. Watermarked MP4 or PNG up to 20 seconds. Watermarked OBS up to 5 minutes (restart anytime).
Pro
Clean export — no watermark. Record and OBS as long as you want. Full preset library, Shuffle, Depth, Alt ASCII. Add RD, CA, PreText, GEO 3D, and Sonify on the desktop graph. Higher detection caps. Buy Pro on Gumroad.
Settings that survive a selfie
Front camera plus side light keeps contrast in the seed. If the pattern flatlines, move into frame or lower the timestep in EDIT.
Full map: reaction-diffusion guide · RD node.
FAQ
What is free?
Open the app in a browser, swipe and edit looks (phone reaction-diffusion and cellular automata included), luma detection, Hand, watermarked MP4 or PNG up to 20 seconds, and watermarked OBS up to 5 minutes (restart anytime).
What requires Pro?
Clean export with no watermark, unlimited record and OBS, the full preset library, Shuffle, Depth and Alt ASCII, adding RD / CA / PreText / GEO 3D / Sonify on the desktop graph, and higher detection caps. TekDetek is not completely free.