Dialux Evo 9 (Firefox)

Interoperability is crucial in modern BIM (Building Information Modeling) workflows.

The viewport performance in evo 9 is a marked improvement. Users can now navigate large 3D models more smoothly. The real-time visualization offers a better preview of how textures and light interact before the final calculation is run.

Introduction: Why Dialux evo 9 Changes the Game

In the world of professional lighting design, precision is paramount. For over two decades, the name Dialux has been synonymous with high-quality, free-of-charge lighting calculation software. With the release of Dialux evo 9, the developers at Dialux GmbH have not simply released an update; they have fundamentally redefined how designers interact with light, geometry, and data.

Dialux evo 9 bridges the gap between complex, engineering-level calculations and an intuitive, architectural workflow. Whether you are designing a retail storefront, an industrial warehouse, an office landscape, or a complex outdoor urban space, Dialux evo 9 offers the tools to visualize, calculate, and present your designs with unprecedented speed.

This article serves as a deep dive into Dialux evo 9. We will explore its new features, interface improvements, calculation engine, and practical applications to help you determine if now is the time to upgrade your workflow.


If you are moving from version 8 or an older version of Dialux 4, the jump to evo 9 feels revolutionary. Here are the headline features that set version 9 apart. dialux evo 9

DIALux evo 9 was a pivotal release that modernized the software for the next decade of lighting design. By discarding legacy calculation bottlenecks in favor of a physically based path tracer and modernizing the UI, DIAL successfully balanced ease of use with professional-grade precision.

It remains the industry standard not just because it is free for users (supported by manufacturer partnerships), but because it provides a complete workflow—from the first sketch to the final documentation—within a single, cohesive environment. For any professional involved in lighting, mastering evo 9 is not just an option; it is a necessity.

Redefining Lighting Documentation: What’s New in DIALux evo 9

The release of DIALux evo 9 marked a significant milestone for lighting designers, focusing heavily on streamlining the transition from complex technical simulations to professional, client-ready documentation. While newer versions like DIALux evo 13 are now available, version 9 introduced the foundational "Documentation 2.0" workflow that remains central to the software's modern identity. A Complete Documentation Overhaul

The most prominent change in version 9 was the complete redesign of the project documentation. The software moved away from a rigid, page-by-page setup to a more flexible, visual-centric approach.

Revised Project Mode: A new dedicated project mode allows users to input global information—such as project names, descriptions, and participant contact details—in one central hub. If you are moving from version 8 or

Visual Enhancements: Documentation now features larger fonts, more attractive cover pages, and better-structured project trees.

Integrated Room Lists: Designers can now generate a compact room list for an entire story, eliminating the need to create separate output pages for every individual room. Interactive Design Tools

Beyond reporting, DIALux evo 9 introduced tools to help designers refine their projects in real-time.

Light Visualization Tool: A standout feature is the "show light visualization" tool. It allows users to see the light output of a single selected luminaire instantly. This is particularly useful for aiming adjustable downlights or track spots without waiting for a full project calculation.

Multi-Scene Management: Users can now select or deselect multiple light scenes directly within the project tree, removing the tedious need to switch back and forth between the light scenes tool and the documentation view.

Layout Alternatives: Many output pages now offer flexible layout options, allowing designers to combine images, value charts, and isoline curves into a single, cohesive floor plan view. Stability and Performance In the world of professional lighting design, precision

To improve reliability with large-scale projects, DIALux evo 9 transitioned its internal graphic handling from vector to raster graphics. While this may lead to slightly larger PDF file sizes, it significantly increased the software's stability during the export process. Users can still manage file sizes by adjusting image quality settings before saving. Educational Impact

Since its release, DIALux evo 9 has been widely adopted in academic and professional studies to optimize energy consumption and visual comfort. Its simulation accuracy has been used to analyze everything from architectural studios to pedestrian path lighting, proving its versatility across different lighting standards.


In the world of professional lighting design, precision is not just a goal—it is a requirement. For over two decades, DIALux has stood as the global gold standard for simulating, calculating, and visualizing light. With the release of DIALux evo 9, the German-based DIAL GmbH has not simply updated an existing tool; they have fundamentally re-engineered the user experience and the underlying calculation engine. Whether you are a seasoned lighting engineer, an architect, or an electrical planner, this version demands your attention.

This article provides an exhaustive deep dive into DIALux evo 9, exploring its new features, performance benchmarks, workflow enhancements, and why it is the definitive tool for professional lighting design in 2024 and beyond.

While DIALux evo has supported BIM for years, version 9 natively supports IFC 4.0 (Industry Foundation Classes). This is critical for large-scale projects.

Let’s walk through a typical project to understand how DIALux evo 9 feels in practice.