Rays update at once
Move a mirror and the light paths change. Keep adjusting the layout until it is clear what is going on.
A scheme you can change
Build an experiment, show it to someone if you want, and write to us when something looks wrong or a new idea shows up.
Share when you want
In Studio you can send a link to a scheme, or present it live if you want someone watching with you.
Write to us
This is an early beta, so a lot is still moving. Tell us about bugs, ask optics questions, suggest ideas — that shapes what comes next. Puzzles and native apps are already in the works.
An editor for light experiments: sources, mirrors, lenses, prisms, and ray paths you can watch and change. Right now it is an open beta in the browser. Native apps and puzzle levels will come later.