LichtBus
Tools

Browser tools

Free, no sign-up. Everything runs locally in your browser — no file ever leaves your machine.

GLB Optimizer

Makes GLB exports from Rhino or Blender fit for real-time use — VR (Meta Quest), visualization, simulation: clean-up, selective decimation, KTX2 texture compression.

Measured on real models: 311 MB → 18 MB · 5,663 → 91 draw calls

3D Viewer

View several GLB files as one scene — the Revit export comes split by discipline, and none of them can be judged on its own. Disciplines switchable one by one, night image from measured light distributions, A/B comparison of two versions at the same exposure.

On the station model: 296 luminaires, IES against point spot

Kabelrechner

Querschnitt, Spannungsfall, Abschaltbedingung und FI-Empfehlung in einem Durchgang. Rechnet lokal im Browser — Daten bleiben auf dem Gerät.

Light distribution

Inspect IES and LDT files: polar diagram, luminous flux, efficacy, beam angle. Runs in your browser — data stays on your device.

Light colour

Convert a colour temperature to RGB — for RGB luminaires, for the 3D export, for the console. Including the share of luminous flux a warm setting costs.

Stuck somewhere?

A bug, a missing format, or a dataset that will not import — write to me. Attach the file straight to the ticket.

No password needed. You get a login link by email — your address is the key.