DIALux was developed by DIAL GmbH to provide a professional, manufacturer-independent tool for lighting calculation. Version 3.14 was a key release in the software's transition toward more complex spatial modeling. Unlike basic calculators, it introduced advanced geometric entry methods, allowing designers to move beyond simple rectangular rooms to more custom architectural shapes.
| Feature | DIALux 3.14 | Modern evo / Revit | | :--- | :--- | :--- | | | Static factor only | Dynamic, climate-based | | Real-time ray tracing | None | Yes (NVIDIA OptiX) | | BIM interoperability | IFC export only (broken) | Native IFC, Revit, Rhino | | Tunable white / Circadian | No | Yes (via plugins) | | Multicore CPU / GPU | Single core only | Yes | | Open file format | Binary .dip (proprietary) | SQLite (human-readable) | Dialux 3.14
Many lighting designers still prefer DIALux 4.14 because it is lighter, faster, and focuses strictly on indoor/outdoor lighting calculation without the heavy architectural modeling requirements of newer versions. DIALux was developed by DIAL GmbH to provide