Cast a Shadow

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 250.2 Hz, 77 cents flat of C4, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Drag or use the arrow keys to turn the block until its shadow fills the outline. Q and E roll it.

A carved block hangs between a lamp and a wall, and every piece of it casts its own small shadow. Each block is carved so that from one way its shadow is a picture, a heart, a fish, a key, a house, a star, a tree or a bird, and from the side it is another; from most turns it is a jumble. Turn it until its shadow fills the outline drawn on the wall; the Match chip says how close you are. In 2D you see only the wall, as if you stood at the lamp, and turn the block by its shadow alone; the 3D button steps to the side so the lamp and the block show.

Made in Splashery. Its code is MIT.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.