3D Paint Pendulum

PHYSICSStudio

A pendulum sandbox that swings a dripping paint can over paper, building up realistic paint spill patterns.

UpdatedMar 2026

ExportsPNG, JPG

Runs onAny browser

PriceFree

Overview

A dynamic physics playground.

3D Paint Pendulum is a small physics sandbox: a paint can hangs from a swinging pivot above a piece of paper. The can drips as it swings, leaving trails of color that build up into a paint-spill pattern over time.

Tune the pendulum length, mass, and gravity; pick a paint color and a drip rate; pick the paper background. Two right-sidebar tabs separate the pendulum controls from the paint controls.

Features

Built for physics-scale experimentation.

01 / Spotlight

Real-time pendulum with

Adjustable length, mass, gravity, and damping.

Paint can drips

At a configurable rate, leaving fading trails on the paper below.

Right sidebar has

Separate Pendulum and Paint tabs; export PNG or JPG of the final spill.

How to use

Workflow

Steps take about a minute.

Click Play to start the pendulum swinging. Open the Pendulum tab to tune length, mass, gravity, and damping. Open the Paint tab to pick a color and drip rate. Export PNG/JPG from the toolbar.

Use cases

What people use it for

Creating generative paint-spill art from physics simulationExploring pendulum motion and drip-pattern compositionGenerating abstract backgrounds for design workRelaxing creative play with physics-driven painting

FAQ

Common questions

Can I have multiple pendulums?+

Not in the current build. The simulation is a single pendulum with one paint can. Layered effects come from letting one can drip for a long time, or by switching colors partway through.

Why are the trails so long?+

Drip trails persist until the paper is Reset. The trail length is set by the simulation duration; use Reset to start a new spill.

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3D Paint Pendulum

A dynamic physics playground.