Optics / Ray Tracing
Interactive geometric optics simulation
Click canvasPlace selected element from toolbar
Drag elementMove optical element or light source
Scroll on elemRotate element
Select toolClick element to select & see properties
Del / BackspaceDelete selected element
PresetsLoad demo scenes (telescope, rainbow...)
Snell's law: n₁sinθ₁ = n₂sinθ₂
Total internal reflection when θ > arcsin(n₂/n₁)
or click outside to dismiss