Simulating Hand-Drawn Motion with SVG Filters

Learn how to create the "boiling" or "line boil" animation effect that makes static illustrations appear hand-drawn and alive. The technique uses SVG filter primitives (feTurbulence and feDisplacementMap) to generate procedural noise that distorts shape edges, combined with JavaScript to animate the distortion parameters over time. The guide includes interactive demos showing how to control base frequency, displacement scale, and animation parameters to achieve subtle jitter effects commonly seen in cartoon-style animations.