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TouchDesigner
TD - Brownian Motion
Smooth, bounded noise that never tiles or repeats.
FREE
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About
TD Brownian Motion implements the exact Ornstein-Uhlenbeck stochastic differential equation as a Script CHOP — no Euler discretization error, no drift. Output stays mathematically bounded while producing smooth, organic randomness across multiple channels simultaneously.
Features
- Exact Ornstein-Uhlenbeck analytical transition — zero discretization error at any timestep
- Implicit spring filter (Klak-style), unconditionally stable at any frame rate
- Voss-McCartney 1/f pink noise fractal detail layers
- Independent rotation noise with per-axis amplitude controls
- Deterministic seeding for repeatable motion across sessions
What You Get
Script CHOP .tox, 26 automated tests, full source code, MIT license