A textbook figure is already finished: you cannot nudge the prism, move the lamp, or trace the ray again. We wanted the other kind of freedom — put a scheme down, change one thing, and watch what the light does. Loomrume grew out of that.
This is not a lab, and we do not pretend the picture is a real experiment. The rays are computed by a model. That is usually enough to see why a scheme behaves the way it does.
You can open a ready example or build a scheme from scratch. Studio is the browser editor where that happens. Open Studio
Write to us
If a ray looks wrong, or a scheme you need is missing, write to us. We read the mail and we answer. hello@loomrume.com
Some of the usual questions are already answered in the FAQ.