DIALux evo 9 represents a significant leap forward in professional lighting design software, introducing a refined architecture focused on speed, documentation clarity, and user efficiency. While later versions like DIALux evo 13.2 have since been released, version 9 laid the groundwork for modern lighting simulation by moving away from the older DIALux 4.13 standard. Key Features and Performance Enhancements
The release of version 9 brought several transformative updates to the lighting designer's workflow:
New Calculation Method: A primary upgrade in DIALux evo 9 was the enhancement of its "photon shooter" calculation engine. This update allowed for faster calculations and more realistic visualizations of complex objects with many surfaces in the CAD environment.
Show Light Visualization: A "spotlights" feature allowed users to see the light output of a single selected luminaire instantly without running a full project calculation. This "show light" tool significantly speeds up the process of focusing track spots or adjustable downlights.
Revised Luminaire Placement: The software introduced a more intuitive snap mechanism and "line arrangement" tools. Designers can now see live luminaire positions and spacing measurements as they draw, removing the trial-and-error approach found in previous versions.
Outdoor Space Navigation: For the first time, DIALux evo added a dedicated navigation bar for outdoor spaces, simplifying the visualization of contours for projects that blend indoor and outdoor environments. Revolutionized Documentation and Reporting
Documentation in DIALux evo 9 was completely redesigned to improve client-facing clarity:
Customizable Layouts: Through the "Layout" Pro Feature, users gained the ability to edit fonts, colors, and overall page design to match their corporate identity.
Enhanced Reporting Tools: The documentation now includes a separate "contacts" page for stakeholders, a standard glossary for technical terms, and "target ticks" (visual compliance checks) to quickly show if a design meets required standards.
Room Overviews: Instead of generating individual outputs for every room, designers can now create a complete room overview that lists all luminaires and energy data in a single, concise format.
High-Resolution Exports: Version 9.2 expanded image resolution options for exports and raytracing, supporting up to 4K UHD (3840 x 2160). Hardware Requirements
To run DIALux evo 9 effectively, especially for complex 3D modeling, a capable PC setup is recommended: Minimum Requirement Professional Recommendation Processor Intel or AMD CPU with SSE2 support Multi-core (4–8 cores) for faster calculations RAM Graphics OpenGL 3.2 support (1 GB VRAM) 2 GB+ VRAM for smooth CAD visualization OS Windows 10 (64-bit) Windows 11 (64-bit) Resolution 1920 x 1080 px 1920 x 1080 px or higher Download DIALux lighting design software
DIALux evo 9 introduced a completely redesigned documentation workflow
and layout, moving away from the structure used in previous versions to offer clearer, more professional lighting design reports. Key Features of DIALux evo 9 Documentation
The documentation is now split into two main areas, offering more granular control over output selection and presentation: New Design & Layout
: Includes larger fonts and visually attractive cover pages. Centralised Room Overview
: A single page now lists all rooms with their respective luminaires and energy data, removing the need to generate individual reports for each room. Flexible Image Handling
: Users can add multiple images per page (rendered, normal, or thermal views) and choose from various layout alternatives. Enhanced Project Information
: Dedicated pages for contact details of project participants, editable disclaimers, and custom project descriptions. Calculation Data
: Summaries include target lux levels, achieved average/min/max levels, and uniformity factors. Steps to Produce Your Documentation (Paper)
To generate a professional report in DIALux evo 9, follow this process: Project Setup
: Enter project names, descriptions, and participant contact details in the "Project" mode. These automatically populate the corresponding pages in the output. Select Pages
: Use the redesigned project tree on the left to select or deselect specific pages, such as the cover page, luminaire list, or calculation objects. Configure Layouts : For each selected page, use the "Configure page"
button (or F2) to choose between layout alternatives, such as rotating to landscape mode for floor plans. Manage Images
: Import images or screenshots. You can group these with descriptions, though they cannot be resized manually; instead, select a predefined layout alternative. Export to PDF
: The software uses a new engine to generate PDFs faster. You can specify image quality to balance file size and visual clarity. Technical Requirements
To ensure smooth paper production for complex projects, your hardware should ideally meet these minimums: : 2 GB RAM (minimum), 4 GB recommended. : OpenGL 3.2 compatible card with at least 1 GB RAM. : Minimum resolution of (recommended for better workspace).
for what to include in a standard indoor lighting design report? DIALux evo 9 Tutorial: New documentation 17 Apr 2020 —
Introduction
Dialux evo 9 is a lighting design software developed by DIAL GmbH, a German-based company with over 60 years of experience in the field of lighting technology. The software is widely used by architects, lighting designers, and engineers to create detailed and realistic lighting simulations for various applications, including interior and exterior lighting design.
Key Features
Dialux evo 9 offers a range of features that make it a powerful tool for lighting design:
New Features in Dialux evo 9
Compared to its predecessor, Dialux evo 9 offers several new features and improvements:
Applications and Use Cases
Dialux evo 9 is used in various applications, including:
System Requirements
To run Dialux evo 9 smoothly, your computer should meet the following system requirements:
Conclusion
Dialux evo 9 is a powerful lighting design software that offers a range of features and tools for creating detailed and realistic lighting simulations. Its user-friendly interface, extensive object and light source libraries, and support for BIM make it a popular choice among architects, lighting designers, and engineers. With its new features and improvements, Dialux evo 9 is an excellent option for anyone looking to create high-quality lighting designs.
DIALux evo 9: Designing Lighting with Greater Precision The release of DIALux evo 9
marks a major shift in how lighting designers and architects approach documentation and visualization. This update focuses heavily on speed, workflow automation, and presentation quality, making it one of the most efficient versions for professional projects. Key Feature Upgrades
Automated Documentation Layouts: A redesigned documentation workflow features a cleaner layout with larger fonts and more attractive cover pages. You can now import images directly via drag-and-drop from Windows and specify image sections during selection.
Show Light Visualization: This tool allows you to view the light output of a single luminaire instantly—without running a full project calculation. This is perfect for fine-tuning the orientation of track spots or adjustable downlights.
Enhanced Calculation Kernel: The new "photon shooter" calculation method is significantly faster for complex scenes. It improves the realistic presentation of detailed objects with many surfaces, such as complex furniture or 3DS files.
Improved Snapping and Dimensioning: New dimension lines in the floor plan can snap to luminaires or specific points. The snap mechanism now includes a length grid and angle snap, which dramatically speeds up the placement of objects in CAD.
Efficient Luminaire Placement: Luminaires can now be distributed along lines or in fields by distance or quantity, removing the need for manual calculations. Why Professionals Use It Amazing Dimension Lines in Dialux evo 9 0!
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.
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
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.
Title: Illuminating the Future: A Comprehensive Analysis of DIALux evo 9
Introduction
Light is a fundamental architectural element that dictates the utility, aesthetics, and atmosphere of a space. However, transforming a lighting concept into a tangible reality requires precision, calculation, and visualization. In the realm of lighting design software, DIALux has long stood as the industry standard. With the release of DIALux evo 9, the software has taken a significant leap forward, bridging the gap between technical calculation and architectural visualization. This essay explores the capabilities, new features, and overall impact of DIALux evo 9 on the lighting design industry, asserting that it represents a pivotal tool for modern engineers and designers.
The Evolution of User Interface and Modeling
One of the most immediate improvements in DIALux evo 9 is the refinement of its user interface and 3D modeling capabilities. Previous iterations often required a steep learning curve, particularly for those accustomed to CAD software. Evo 9 addresses this by offering a more intuitive workflow that mirrors the logic of architectural design. The software allows for the quick construction of complex geometries, enabling designers to build rooms, insert doors and windows, and modify textures with ease. The improved "modes"—ranging from "Construction" to "Light" and "Documentation"—guide the user through the logical steps of a project, ensuring that the workflow remains structured and efficient.
Visualisation and the Cinematic Experience
Perhaps the most marketed advancement in DIALux evo 9 is its enhanced visualization engine. In the past, lighting design software produced static, often sterile images that failed to capture the emotional impact of a lighting scheme. Evo 9 integrates a high-end rendering engine that allows for photorealistic visualization. A standout feature is the ability to export cinematic videos. This allows designers to create "walkthroughs" or "flythroughs" of a project, demonstrating how light interacts with textures and space dynamically. This feature transforms the software from a mere calculation tool into a presentation platform, allowing designers to communicate their vision effectively to clients who may not understand technical charts.
Technical Precision and Calculation
Despite the emphasis on aesthetics, DIALux evo 9 remains rooted in the scientific principles of lighting engineering. The core strength of the software lies in its ability to perform standardized calculations according to EN 12464-1 and other international norms. The software provides comprehensive data on illuminance, luminance, and uniformity. New features allow for more sophisticated emergency lighting planning, a critical safety requirement. By integrating emergency signage and calculating anti-panic areas directly within the 3D model, engineers can ensure compliance without resorting to separate, disjointed calculations. This fusion of safety planning and aesthetic design ensures that projects are not only beautiful but legally compliant and safe.
Interoperability and Manufacturer Collaboration
In the modern construction ecosystem, software interoperability is paramount. DIALux evo 9 excels in its ability to integrate with other platforms through DWG, DXF, and SAT file imports, as well as export options for Revit and SketchUp. Furthermore, the software relies heavily on the support of lighting manufacturers. Through the DIALux partnership program, manufacturers provide up-to-date LDT (EULUMDAT) and IES photometric files. Evo 9 allows users to access vast online product catalogs directly within the software, ensuring that the luminaires specified in the design are current and technically accurate. This seamless connection between the digital model and the physical supply chain reduces errors during the procurement and installation phases.
Conclusion
DIALux evo 9 represents a maturation of lighting design software. It successfully navigates the complex dichotomy of the profession: the need for rigorous scientific calculation versus the desire for artistic expression. By enhancing its modeling tools, introducing cinematic visualization, and maintaining robust calculation standards, it empowers designers to create lighting solutions that are functional, compliant, and visually stunning. As sustainable design and human-centric lighting continue to shape the future of architecture, tools like DIALux evo 9 will remain indispensable in illuminating the built environment.
DIALux evo 9 is a significant update to the professional lighting design software, primarily focused on refinement, speed, and reporting. While newer versions like DIALux evo 14 are now available, version 9 introduced several core workflow improvements that remain fundamental to the software's architecture. Key Features of DIALux evo 9 DIALUX EVO 9 : DOCUMENTATION EXPLAINED
Title: The Midnight Calibration
Elena’s client didn’t just want a well-lit room. He wanted a feeling.
“I want the light to remember the afternoon my daughter took her first steps,” Mr. Alder said, pointing to a dusty blueprint of his living room. “Golden, soft, but with a sharp little shadow under the sofa.”
Three years ago, Elena would have laughed him out of her office. You don’t design light for memories. You design for lumens, uniformity ratios, and UGR glare limits. But that was before she mastered DIALux evo 9.
Now, she sat in her silent studio at 11:47 PM, a triple-shot espresso cooling beside her. On her screen, the wireframe of Mr. Alder’s living room hovered in the evo 9 interface. She rotated the 3D model with a flick of her wrist. The virtual sun was down. The room was a ghost.
“Alright, old friend,” she whispered to the software. “Let’s build a memory.”
She didn’t start with photometry. She started with texture. She dragged and dropped real-world materials into the scene: the rough oak of the floor, the velvety nap of the blue sofa, the cold, pitted surface of the cast-iron stove. In evo 9, light doesn’t just land on surfaces—it talks to them. It scatters off the oak but sinks into the velvet.
First, she placed the ambient base: three recessed downlights from the ERCO library, set to 2700K. Warm. Like a hug. She hit the Raytracing engine. The screen flickered, and for a moment, the virtual room looked dead. Flat. Elena frowned. That was the problem with new users—they stopped at the ceiling grid.
She zoomed in on the east window. No physical sun was coming, so she built her own. She clicked Plug-in → Artificial Sky. Instead of a standard daylight spectrum, she manually entered a color temperature curve: 3200K at the horizon, fading to a deep indigo at the zenith. She added a volumetric fog—just 12% density. The light began to spill across the digital floorboards.
That’s better, she thought. But the shadow is wrong.
Mr. Alder had mentioned a shadow under the sofa—the one that looked like a sleeping cat. Elena grinned. She imported a custom IES file she’d made years ago from a vintage French floor lamp. She placed it exactly 47 cm from the sofa’s left leg. Then she opened the Light Scenes panel.
Scene 1: “Golden Hour (Memory).” She twisted the goniometer. She tilted the lamp’s virtual reflector by 14 degrees. In the false-color rendering, the lux map bloomed like a flower: 150 lux on the floor, 80 lux on the wall, and precisely 12 lux in that long, sharp pool beneath the sofa.
She hit Calculate.
DIALux evo 9 hummed. Her laptop fans roared. The progress bar inched forward: 10%... 40%... 85%. Elena held her breath. The software wasn’t just calculating light levels—it was simulating 14,000 photon bounces. Every reflection off the ceiling, every refraction through the virtual windowpane, every micro-shadow inside the weave of the rug.
At 100%, the rendering resolved.
Elena gasped.
The room on her screen wasn’t a model. It was a photograph. The golden light slanted in from the artificial window, thick as honey. The oak floor gleamed. The velvet sofa drank the light on its back but reflected a tiny, warm highlight on its arm. And there, under the sofa—exactly as Mr. Alder described—lay a deep, quiet shadow. It looked like a sleeping animal.
She checked the numbers. Uniformity: 0.68. UGR: <16. Energy consumption: 34 watts per square meter. Perfect on paper. But the feeling was in the pixels. dialux evo 9
At 1:15 AM, she exported two things. First, the Luminaire Schedule (PDF). Second, a 360-degree VR panorama for the client.
She didn’t attach a technical note. She just wrote in the email:
“Mr. Alder—walk into the room. The shadow is waiting.”
Two weeks later, after the electricians had left and the last trim piece was nailed in, Elena visited the real house. Mr. Alder stood in the middle of his living room. The real sun had set. But his new lights were on—the recessed downlights, the vintage French floor lamp tilted at 14 degrees.
The golden hour was artificial. But the tears in his eyes were real.
“It’s exactly how I remembered it,” he whispered.
Elena smiled and looked down at her phone. The DIALux evo 9 app showed the live Bluetooth lux reading: 151 lux on the floor, 81 lux on the wall.
Close enough, she thought. Light is just numbers until someone feels it.
The End.
For luminaire manufacturers and advanced users, Dialux evo 9 introduces a built-in photometric web viewer. You can now drag, drop, and visually edit the light distribution curve (LDT/IES) in 3D to see how a change in beam angle affects the room before exporting the data.
Click "Calculate." Within seconds, you get:
For outdoor lighting designers, evo 9 ensured compliance with updated standards. It supports calculation according to EN 13201 (Road lighting) and EN 12464-2 (Lighting of work places - Outdoor), making it an essential tool for municipality and infrastructure projects.
Despite its power, Dialux evo 9 has quirks.
Problem 1: "The calculation seems stuck at 12%."
Problem 2: Luminaires are not appearing in the 3D view.
Problem 3: The software crashes when importing large DWG files.
The answer is a resounding yes.
Dialux evo 9 is not just a software update; it is a statement that professional lighting calculation software can be both powerful and accessible. The combination of real-time rendering, BIM compatibility, and a zero-price point makes it the industry standard for a reason.
For the student learning lighting design, the free license removes barriers to entry. For the senior engineer, the speed improvements and Scene Manager save hours of redundant work. For the architect, the IFC import ensures that the lighting design is integrated, not added on.
If you are still using Dialux 4.13 or an early evo version, you are missing out on a 40% speed boost, better visuals, and a workflow that integrates with modern building design.
Download Dialux evo 9 today, open a sample project, and press "Calculate." You will see the light.
About the Author: This guide was created by lighting design professionals with over a decade of experience using the Dialux suite. Always verify calculations with physical on-site measurements and consult local building codes.
Comprehensive Guide to DIALux evo 9: Revolutionizing Lighting Design
DIALux evo 9 is a landmark version of the globally recognized, free lighting design software used by professionals to plan, calculate, and visualize light for indoor and outdoor spaces. This update, following version 8.2, introduced significant improvements to the workflow, visualization tools, and documentation. Key Features and Improvements in DIALux evo 9
The release of version 9 (and its iterations like 9.1 and 9.2) focused on making the design process faster and more intuitive for lighting designers.
Individual Luminaire Visualization: A new "show light visualization" tool allows designers to see the light output of a single selected luminaire without running a full project calculation. This is particularly useful for orienting track spots or adjustable downlights.
Enhanced Documentation: The output technology was completely overhauled to be more user-friendly. It features larger fonts, more attractive cover pages, and the ability to list all rooms, luminaires, and energy data in a single comprehensive overview.
Revised Placement and Snap Functions: Placing luminaires along lines or in fields (added in version 9.1) is now more efficient. New features include a length grid and angle snap for precise positioning.
High-Resolution Exports: The Raytracer and export modes now support resolutions up to 4K UHD ( ), allowing for professional-grade visual presentations.
Outdoor Space Navigation: A dedicated view for outdoor spaces was added to the navigation bar, simplifying planning for exterior projects. Technical Specifications & Requirements Application of Dialux EVO in Retrofitting Lighting Systems DIALux evo 9 represents a significant leap forward
Crucially, despite the speed increase, the accuracy remains certified according to CIE 171:2006 (Test cases for validation of lighting calculations). You can confidently use evo 9 for legal light pollution reports or energy compliance (LENI calculations).