A small disturbance

Ripple Pond

Drop a pebble.
See how far a little ripple goes.

Tap the water to drop a pebble. Drag to orbit.

Repeating sources Source rhythm 0.8 waves / sec Wave speed 4 units / sec Settling Gentle

Try a barrier

Each layout starts fresh waves. Paint your own barriers with the Barrier tool.

Pond edges Water view

0.0 s0 pebbles

An illustrative wave model with exaggerated surface motion. No currents or changing water depth.

Tap the pond to make a ripple

body > main { display: none; }.simulation-fallback { max-width: 720px; margin: auto; padding: 24px; line-height: 1.6; }.simulation-fallback img { width: 100%; height: auto; }← Explore all worlds

Ripple Pond

Drop a pebble and follow the ripples. Build barriers, open gaps, and watch waves meet, reflect and make patterns across a little pond.

Overlapping ripples across a teal pond, surrounded by pale stones and a low grassy bank.

Enable JavaScript in a browser with WebGL 2 to run this interactive simulation.

A disturbance makes the water rise and fall. That movement travels outward as a wave, carrying energy across the pond.

When ripples meet, their heights add together. Two crests make a taller crest; a crest and a trough can cancel. This is called interference.
Barriers reflect waves. An opening lets waves through, and they spread out on the other side. This spreading is called diffraction.
The pale rings mark repeating wave sources. Two sources can move in step or in opposite rhythms. A red ring means its source is blocked by a barrier.
Settling makes waves fade. Soften the waves damps motion near the pond edges; Reflect the waves lets the edges send waves back. Crests & troughs colors high water gold and low water blue.

Try this: Choose Two · opposite rhythms and Top-down. Look for the quiet line between the sources. Then try One opening and watch waves fan out beyond the gap. You can pause to place a pebble or paint a barrier. This simplified wave model exaggerates surface motion and does not simulate currents or changing water depth.