3D Science and Simulation

Solar System Simulator, Rubik's Cube Solver, Molecule Viewer and Sun Path Simulator

Some things are easier to understand when you can turn them over in your hands. These tools build a 3D scene from a few inputs, a date, a formula, a molecule file, a list of rooms, and let you orbit, zoom and adjust it live. Every scene renders in your browser with a vendored 3D library, needs no account and never sends your data anywhere, and each can be saved as a PNG at up to 4K for a slide, a worksheet or a report.

Most used this week

Solar System Simulator

3D planets in their real positions for any date, with orbits and time control.

Rubik's Cube Solver

3D Rubik's cube that plays moves and solves any state.

Earth Day And Night Map

3D globe showing daylight and night for any date and time.

Floor Plan 3D Preview

List rooms as rectangles and walk around them in 3D.

Molecule Viewer

Open a PDB or XYZ molecule in 3D, orbit it, save a PNG.

Parametric Surface Plotter

Plot x(u,v), y(u,v), z(u,v) as a 3D surface and orbit it.

Every 3D Science tool

3D Function Plotter

Type z = f(x, y) and orbit the surface it makes.

3D Vector Field Plotter

Type Fx, Fy, Fz and see the field as coloured arrows.

Crystal Lattice Viewer

Orbit unit cells of the common crystal structures, read their packing numbers.

Earth Day And Night Map

3D globe showing daylight and night for any date and time.

Floor Plan 3D Preview

List rooms as rectangles and walk around them in 3D.

Molecule Viewer

Open a PDB or XYZ molecule in 3D, orbit it, save a PNG.

Parametric Surface Plotter

Plot x(u,v), y(u,v), z(u,v) as a 3D surface and orbit it.

Rubik's Cube Solver

3D Rubik's cube that plays moves and solves any state.

Solar System Simulator

3D planets in their real positions for any date, with orbits and time control.

Sun Path And Shadow Simulator

Sun arc and pole shadow for any place, date and hour.

What these tools cover

The set is grouped by what people search for rather than by technique. Astronomy: a solar system where the planets sit where they really are on a chosen date, an Earth globe with the day and night terminator for any time, and a sun path simulator that casts a real shadow for a location and date. Chemistry and materials: a molecule viewer that reads PDB and XYZ files and a crystal lattice builder for the common cubic and hexagonal structures. Mathematics: plotters for surfaces z = f(x, y), parametric surfaces and 3D vector fields, all typed as ordinary formulas. Puzzles and planning: a Rubik's cube you can paint and solve, and a floor plan that turns a list of rectangles into walls you can walk around.

How the scenes work

Each page has the same shape. The viewport on the left is a live 3D canvas you drag to orbit, scroll to zoom and right-drag to pan. The rail on the right holds the inputs for that tool, a Fit button to re-centre the camera, an auto-rotate toggle and a Save PNG button with a size choice up to 4K. Changing any input rebuilds the scene immediately, and the stats block under the inputs reports the numbers that matter: an orbital period, the subsolar point, a solution length, a bond count, a packing fraction, a sunrise time or a total floor area.

Accuracy and intent

These are educational models, not research instruments. Planet positions use standard mean orbital elements and are good to a fraction of a degree over a few centuries, the sun position follows the usual almanac algorithm to within a minute of arc, and bond detection uses covalent radii the way most desktop viewers do. Where a simplification is made, the explainer on the tool page says so, and the FAQ answers the questions that usually follow.

Privacy

Nothing here talks to a server. Files you drop are read by your browser, formulas are parsed locally, and the PNG you save is rendered on your own machine. The pages keep working offline once loaded.