Dialux 3.14 Review

Don't just light the whole room to 500 lux.

DIALux is the world's leading software for professional lighting design, calculation, and visualization. Version 4.14 (the final major release before the "evo" series) remains a staple in the industry due to its lightweight nature, speed, and reliability for standard indoor and outdoor calculations. It is used by lighting designers, electrical engineers, and architects to create lighting calculations that meet international standards (EN 12464).

: Limited to single-room designs, making it incompatible with modern BIM (Building Information Modeling) workflows that require whole-building modeling.

To appreciate DIALux 3.14, it helps to understand where it came from. The first version of DIALux was released back in 1994 by DIAL, the German Institute for Applied Lighting Technology. Over the years, the program was continuously developed, adding features and improving its capabilities, eventually leading to the creation of the milestone version 4.1. DIALux 3.14 was part of the software suite that preceded this widely popular version. Dialux 3.14

If you must run Dialux 3.14 for archival purposes, ensure you operate it in an isolated sandbox or a virtual machine running a compatible legacy operating system to protect your primary workflow. To help you find the right tools, please let me know:

Created by DIAL GmbH, this vintage iteration of the DIALux ecosystem serves as a highly functional, lightweight alternative to modern BIM-integrated suites. It allows engineers to map out physical spaces, assign specific light sources, and calculate precise illuminance values against rigorous building regulations.

The software calculated lux levels, glare ratings (UGR), and uniformities. It adhered strictly to international lighting standards of its era, such as EN 12464-1 for indoor workplaces. Don't just light the whole room to 500 lux

: Unless you are maintaining an ancient legacy project that cannot be migrated, you should avoid using DIALux 3.14 and instead download the latest DIALux evo

Calculated inter-reflections between walls, ceilings, and floors based on user-defined reflection factors (e.g., 70% ceiling, 50% walls, 20% floor).

: Evaluates the exact total luminous flux incident on a surface per unit area. Designers use it to calculate average lux levels across a uniform grid. It is used by lighting designers, electrical engineers,

: Historically, specific versions like 3.14 have been used in technical workshops, such as those hosted by the IEEE Power & Energy Society , to teach fundamental lighting scheme design. Evolution of the Software Frequently asked questions about DIALux

| Feature | DIALux 3.14 (Legacy Version) | DIALux evo (Modern Version) | | :--- | :--- | :--- | | | Primarily room-based design | Building Information Modeling (BIM)-based project design | | 3D Graphics | Basic 3D rendering | Advanced, physics-based graphics engine | | Calculations | Photorealistic lighting computations | Supports comprehensive daylight and emergency lighting calculations | | Import/Export | Standard CAD and image files (e.g., .dwg , .dxf , .jpg ) | Supports modern BIM formats and 3D scans | | Manufacturer Data | Separate plug-ins for each manufacturer | Integrated platform with data from DIALux Member manufacturers (limitations may apply to non-members) | | User Base | Grew to hundreds of thousands of users worldwide | Has over 700,000 professional users globally |

: Users can now calculate individual rooms or specific spaces rather than the entire building at once. This targeted approach makes handling large projects much faster and more structured.