Vellum 201 – Ep. 01: Simulating a zipper by Christopher Kopic 30.04.2026 comment 0 Premium Course, Vellum 201 Animation, Cloth, constraints, copytopoints, curveu, Houdini, jacket, Premium Content, Procedural, simulation, stiffness, stitch, Tutorial, Vellum, zipper, zipping To view this content, you must be a member of Entagma's Patreon at $29 or more Unlock with Patreon Already a qualifying Patreon member? Refresh to access this content.