Dialux Evo 9: |verified|
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.
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. dialux evo 9
Close enough, she thought. Light is just numbers until someone feels it.
The End.
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, released in April 2020, marked a major evolution in lighting design software, primarily focusing on a complete overhaul of its documentation workflow and enhancing the efficiency of outdoor planning. The Documentation Revolution
The "full story" of version 9 is centered on making professional reports easier to generate and customize.
Total Redesign: The output section was completely rewritten for better clarity and structure.
Centralized Project Hub: Users can now insert project-wide information—such as descriptions, participant contact details, and a main project image—directly into a central "project mode".
Flexible Layouts: For the first time, users could choose from different layout alternatives for each page, allowing for better arrangement of images and text.
Consolidated Room Overview: A new room list allows designers to see all luminaires, energy data, and room elements in one compact summary, removing the need for individual room reports.
Visual Enhancements: Users can now show isoluminance curves, false colors, and value charts simultaneously on a single floor plan. Improved Design & Workflow Features
Beyond reporting, version 9 introduced several practical tools for the design phase:
Outdoor Planning Overhaul: The navigation bar was extended to include a specific outdoor view, and users can now visualize the contours of both indoor and outdoor spaces simultaneously during construction.
Precise Luminaire Placement: The software revised light lines and snap mechanisms (including angle and length snaps), enabling users to distribute luminaires along a line by either a specific number or a set distance. The End
Realistic Calculations: A new calculation method was implemented to visualize complex objects more realistically and speed up processing time.
Stability & Fixes: Version 9 resolved long-standing issues with complex geometries and improved the reliability of IFC file imports. Technical Evolution
Platform Transition: As part of this release, DIALux moved toward converting vector graphics to raster for documentation to improve stability in large-scale projects, though this occasionally resulted in larger PDF file sizes.
Maintenance & Standards: The update restored the ability to reassign standards to existing road projects and fixed errors in the ROVL and EN 13201:2004 standard transitions.
While DIALux evo has since moved to version 13, version 9 remains a landmark update that defined the modern professional reporting standards used by designers today. DIALUX EVO 9 : DOCUMENTATION EXPLAINED
DIALux evo 9, released in early 2020, marked a significant shift toward design efficiency and professional project presentation . While newer versions like DIALux evo 13
are now available for free, version 9 introduced the core "Pro" documentation workflow and calculation enhancements that define the modern user experience. Core Innovations in DIALux evo 9 Redesigned Project Documentation
: The entire output system was overhauled with a modern layout, larger fonts, and more attractive cover pages. A new Room Overview
feature allowed designers to list all rooms, luminaires, and energy data in a single comprehensive summary, removing the need for individual reports for every space. Enhanced Calculation Engine
: This version introduced a new method to handle complex 3D objects with many surfaces. This update improved calculation speeds and made lighting effects on furniture and detailed objects appear more realistic in the CAD view. "Show Light Visualization" Tool
: Designers can now view the light output of a single selected luminaire in real-time without running a full project calculation. This feature is particularly useful for quickly focusing spotlights or adjusting downlight orientations. Pro Layout Features
: DIALux evo 9 introduced the "Pro" subscription feature, allowing users to customize documentation with their own brand colors, fonts, and unique page layouts. Streamlined Workflow Updates Simplified Luminaire Placement Line Arrangement
tool was refined to show live luminaire positions and spacing measurements as the designer draws, rather than after the line is placed. Outdoor Planning Focus
: Version 9 added a dedicated view for outdoor areas in the navigation bar, making it easier to visualize contours and manage exterior lighting projects alongside interior designs. Centralized Project Management : A dedicated Project Tab
was added to the top-level interface, providing a central hub for entering project descriptions, client contact details, and participant roles that automatically sync with the final documentation. User Perspective & Industry Impact
DIALux evo 9 represented a major shift for professional lighting design, introducing a faster calculation engine and a completely overhauled documentation system
. Released in mid-2020, it aimed to bridge the gap between technical accuracy and professional presentation. Core Improvements and New Features Faster Calculation Engine
: The previous "photon shooter" method was enhanced to better handle detailed objects with many surfaces. This results in quicker calculations and more realistic lighting effects on complex furniture and architectural details. Redesigned Documentation
: The output system was completely rebuilt with a fresh layout, larger fonts, and more attractive cover pages. Room Overview
: A single overview now lists all rooms, luminaires, and energy data, removing the need to generate separate reports for every individual room. Customizable Layouts
: Users can now edit disclaimers, imprints, and contact details on dedicated pages. Pro Layout Features
: A paid "Pro" feature allows for deep customization of fonts, styles, colors, and overall page design to match a corporate identity. Revised Luminaire Placement
: Positioning luminaires is significantly faster with improved snapping and live visualizations. Line Arrangement
: You can now see luminaire positions and spacing measurements live as you draw a line, rather than only after placing it. Field Arrangement (v9.1) 13) Best practices & tips
: Updated to allow placement based on the number of luminaires or specific distances between them. Enhanced Outdoor Planning
: A dedicated view for outdoor spaces was added to the navigation bar, allowing designers to visualize the contours of both indoor and outdoor areas simultaneously. Individual Luminaire Visualization
: The "show light visualization" tool allows you to see the output of a single selected luminaire in the CAD view without running a full project calculation. Technical Requirements
To run DIALux evo 9 effectively, your system should meet these minimum specifications: : Windows 7, 8.1, or 10 (32 and 64-bit). : Minimum 2 GB RAM (4 GB recommended). : OpenGL 3.2 compatible card with 1 GB RAM. Resolution : Minimum 1024 x 768 pixels. The Benefits of DIALux EVO 9 Update.
Released in early 2020, DIALux evo 9 introduced a redesigned documentation workflow featuring a project-centric tree structure, integrated room lists, and enhanced calculation stability. The version overhauled report generation and improved BIM/CAD data exchange while utilizing photon mapping for complex lighting simulations. For more details, visit DIALux. DIALux evo 9 Tutorial: New documentation
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.
13) Best practices & tips
- Always import accurate CAD to scale to speed modelling.
- Use manufacturer IES/LDT files for correct photometry.
- Start with recommended grid spacing based on room function; iterate.
- Keep surface reflectances realistic.
- Label and group luminaires for easier scheduling and power calculations.
6. System Requirements
| Component | Minimum | Recommended | |-----------|---------|--------------| | OS | Windows 10 (64-bit) | Windows 11 (64-bit) | | CPU | Intel Core i5 / AMD Ryzen 5 | Intel Core i7 / AMD Ryzen 7 | | RAM | 8 GB | 32 GB | | GPU | Integrated graphics (OpenGL 4.5) | NVIDIA RTX 3060+ or AMD Radeon RX 6000+ | | Storage | 10 GB free SSD | 20 GB free NVMe SSD | | Display | 1920×1080 | 2560×1440 or higher |
5. Photometric Web Editor (Beta)
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.
4. The New "Scene" Manager
One of the most requested features is finally here. Scenes allow you to create multiple lighting scenarios within a single project file. You can design a "Day scene," "Night scene," "Security scene," and "Accent scene" and switch between them instantly. The evo 9 calculation engine only recalculates the changes, saving massive compute time.
Limitations to Keep in Mind
- No true 3D freeform modeling (still uses parametric shapes + extrusion).
- No built-in electrical circuit design – Only lighting layout, not wiring.
- Raytracing is CPU-based – No GPU acceleration (though v9 improved multi-core).
Who Should Use DIALux evo 9?
- Lighting designers – For indoor (office, retail, industrial) and outdoor (street, parking, landscape).
- Architects – For daylight + artificial light integration early in design.
- Facility managers – For light control group documentation.
If you need a specific feature breakdown (e.g., emergency lighting, or how to model a particular space), let me know and I can dive deeper.
For the Beginner
If you are new to lighting design, the Wizard in Dialux evo 9 has been overhauled. You simply enter the room dimensions (Length, Width, Height), select a standard (EN 12464-1 for Europe or IESNA for the US), and select a room type (Office, Classroom, Warehouse). Dialux evo 9 automatically suggests target lux levels and uniformity ratios. The software then uses "Auto-Place" to evenly distribute luminaires based on your chosen product catalog.
Dialux evo 9: The Definitive Guide to the Next Generation of Lighting Design
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.