An FFGL effect that hammers your clip into a metal sheet and lights it with a lamp on a swinging cord. Brightness becomes height, a punch of a set radius decides the finest detail that can be formed, and a point lamp with inverse-square falloff, a microfacet highlight in the reflectance of copper, brass, silver, gold or steel, and self-shadowing light the relief. The lamp is a damped pendulum, and an onset in the audio, or the Kick button, gives it a push.
This demo runs the plugin's shaders in your browser, so it needs JavaScript and WebGL2. The plugin itself, its source and its downloads are on its repository.