Real2Simulation

REAL → SIMULATION

Film PhysicsSimulate it in 3D

Point your phone at a real experiment. Get a 3D replay, measurements with error bars, and a lab to ask "what if".

Try the demo libraryOpen the lab
  • RECORDED
  • SIMULATED
  • what-if

Every number shows where it came from: measured, simulated or what-if.

A phone records a falling ball beside a scale; tracked positions continue into a wireframe replay.A phone records a falling ball beside a scale; tracked positions continue into a wireframe replay.
Observe. Model. Test.Illustration only, not scene evidence.
  • A phone records a pendulum at three swing positions.A phone records a pendulum at three swing positions.

    Film it

    A licensed clip of a swing, drop or roll.

  • Measurement points with uncertainty bars and a fitted curve under a magnifier.Measurement points with uncertainty bars and a fitted curve under a magnifier.

    Measure it

    Tracked points, error bars, a fitted model.

  • A simulated ball and its ghost position above a wireframe floor.A simulated ball and its ghost position above a wireframe floor.

    Remix it

    Replay it in 3D, then ask what if.

We abstain when scale is unverified.

Guess the GravityWatch a drop. Guess g. Then see the reveal.

How it works

  1. FilmA drop, swing or roll.
  2. Agent asksIt asks for what it cannot see.
  3. TrackPoints, frame by frame.
  4. FitA model with error bars.
  5. ReplayA labelled 3D replay.
  6. What ifChange a value, watch it diverge.

The agent asks instead of guessing

Missing a scale or a frame rate? It asks you, then labels the answer.

Illustration of the agent asking a question about the clip.Illustration of the agent asking a question about the clip.
The agent asks
Illustration of the agent using the answer in the analysis.Illustration of the agent using the answer in the analysis.
Your answer, labelled

Honest by design

Every result carries one of these labels.

  • RECORDEDRead from the footage.
  • SIMULATEDProduced by the fitted model.
  • what-ifYour change, not the clip.
  • scale unverifiedNo trusted ruler, so no metres.

See it for yourself

Start with a demo clip, test a what-if in the lab, or read the code.

Try the demo libraryOpen the labGuess the GravityExplore the code on GitHub