Your laboratory field guide.
Start with a scenario. Change one condition. Follow the result.
Getting started
Launch the studio, choose a preset and use Pause to inspect bodies. Click a name to select a small body; drag it to position it. Orbit with left drag, pan with middle drag or Space + left drag, and zoom with the wheel.
Display and physics
Real scale switches to true body sizes and satellite spacing. Display magnification does not change SI forces, masses or collision radii. Space fabric starts hidden; choose a mode and enable it to explore the field.
On your phone
Use Universe to choose a preset or object, and Inspector for settings. Camera mode uses one finger to orbit, pinch to zoom and two fingers to pan. Choose Move to drag a body or its name. In video capture, Enlarge gives you more room to frame the scene while record, pause and stop stay within reach. Visit /install to add Tuduni to your home screen.
Save and reopen
Sign in, open the studio and use Save Project. Saved snapshots contain bodies, visualization, camera and simulation time. Explicit saves create versions; positions are not written every animation frame.
Live video capture
Choose an aspect ratio, resolution, frame rate and duration. Recordings capture live motion, not deterministic offline frames. Codec support and device performance determine what can be recorded.
Local development
Run npm install, npm run db:local, npm run db:migrate and npm run db:seed. Keep the database terminal open, then run npm run dev. Local verification/reset emails are written to the ignored .mailbox directory when development mail mode is enabled.