velementsSeen from above, a row of pendulums swings across the rail at rising frequencies, drifting out of phase into snakes and braids before snapping back into one straight line.
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Seamless mechanism loops built on real physics: pendulums, plinko boards, marble runs, dominoes, gears and sorters.
Seen from above, a row of pendulums swings across the rail at rising frequencies, drifting out of phase into snakes and braids before snapping back into one straight line.
Balls rain through a triangle of pegs, hopping left or right at every row, and the bins below rise and fall into the bell curve their landings draw.
Marbles roll down a stack of zig-zag ramps, drop to the rail below and ride a side lift back to the top, so the run never empties.
A line of dominoes topples along a rolling ground line, each tile tipping into the next, and stands itself back up behind the wave.
The end ball lifts and drops, momentum crosses the still row without moving it, and the ball at the far end kicks out in its place.
A ball rattles inside nested spinning rings, gaining speed on every hit, and punches out through each gap in turn until nothing is left to hold it.
Cut gears mesh tooth for tooth along a zig-zag shaft line, each wheel turning the other way at the ratio its tooth count demands.
Mixed balls lift out of the jumbled tubes one by one, arc over the row and drop into the empty tube that matches their colour, then scatter back to start.
A steady stream of balls hops down a flight of steps, each tread giving a little under the weight and springing back once the ball has gone.
Blocks ride a segmented belt past a row of pushers, each one punching its own colour down a drop hole, and the bins below rise as they fill.
Drive the motion from maths that closes on itself rather than from a simulation you cut short. Every preset here picks frequencies, path lengths and reset points so the last frame is identical to the first, which means the clip can run under a video for minutes without a visible seam.
Mechanism loops are the workhorse of retention backgrounds: a pendulum wave braiding and realigning, balls raining through a peg board, marbles rolling a zig-zag track. They are slow to build by hand because every ball, peg and tile is its own layer with its own timing. These presets generate the whole mechanism from a count, a speed and a palette.
Read the full guide: Satisfying loops: pendulums, plinko and marble runs10 editable presets, including Pendulum Wave, Plinko Ball Drop, Marble Run Track, Domino Chain Reaction, Newton's Cradle and Ring Escape Bounce. Every one opens in the browser editor, where you change colors, timing and any text before you download.
9 of the 10 loop seamlessly, including Pendulum Wave, Plinko Ball Drop, Marble Run Track, Domino Chain Reaction, Newton's Cradle and Gear Train. The rest play once from start to finish.
MP4 for any editor or platform, and WebM with a transparent background for overlays. Every preset exports in 16:9, 9:16, 1:1 and 4:5 from 720p up to 8K, with a commercial license in your name.
Editing and previewing are free. You only spend a credit when the finished file lands on your machine.
