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What's new in DIALux evo 9.2

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Organise images even easier for your documentation
and benefit from automatically generated views


You want to create your documentation even more appealing and simple? We have simplified the workflow for organizing images: You can now import images directly from the file system or the Windows clipboard by drag & drop. It is also possible to specify the desired image sections directly during selection. In addition, we offer you a range of automatically generated views of your project, which can be used by DIALux evo directly when creating the documentation. You can easily select and deselect these views.


Pro Feature Export:

Create a PowerPoint presentation with one click or import your luminaire and room lists directly into Excel

Export your data directly as a presentation in PowerPoint or PDF format and then edit it as usual. In addition, you can export luminaire and room lists and the luminaire site plan as Excel tables. You can then process these in other programs to shorten time-consuming steps such as preparing offers or cost calculations. You can find out more about the Pro Feature Export here.


Changes and improvements of known functions

In the future, images can no longer be organized using the page settings. The new way works by clicking on the placeholder or on the corresponding image directly in the preview window.

Create light strips quickly and easily

You can now place the luminaires either by the number of luminaires in X and Y direction of the field, or by the distance between the luminaires. Light strips can thus be created very easily and conveniently, and there is no need to use a pocket calculator to recalculate. At the beginning of your planning, the number of luminaires is determined as the planning objective using the light output ratio method, with the minimum illuminance levels required in the room profile Three options are available for the start position of the first and last luminaire:

  • Half the distance from the edge of the field to the first luminaire for a symmetrical distribution within the field
  • The first luminaire at the edge of the field
  • The first luminaire in the middle of the field edge

You can adjust all field parameters before, during and after drawing. 

The size of the field arrangement, the distances between the luminaires and the angles within the field arrangement are displayed directly in the CAD. The dimensioning between the luminaires is carried out either from luminaire edge to luminaire edge or from luminaire centre to luminaire centre.

All grid lines can be moved manually and adapted to the conditions. Individual or all grid lines can be fixed in position.

When you draw a field arrangement, the alignment of the field is determined dynamically. It is therefore no longer dependent on the character sequence. While you are drawing, a preview of the luminaires and grid lines is displayed so that you can get an immediate impression of the placed luminaires.


Planning luminaire fields also on slopes

We have also worked on making it easier to use guide lines for luminaires that are oriented towards sloping room boundaries. On the one hand, the guide lines are now activated separately, so that confusion with the field polygon is no longer possible. Furthermore, the guide lines can now be placed freely in the CAD. This allows you to align the lights on any edges or lines. It is now also possible to exchange individual luminaires within the arrangement in order to place mixed luminaire fields or to use luminaires with special properties at individual points. Several field arrangements can be edited together, for example to change the luminaire distance at several positions in the project together.


—  You can apply textures to 3ds objects again
—  Lights and furniture can be selected together again (and now also grouped)
—  An error in the GR calculation was fixed
—  We have reduced the standard quality for images in the PDF export from 100% to 80% to reduce the file size without visible quality loss
—  The project-wide luminaire parts list is back
—  Also for GR-areas you get now again charts in the documentation
—  Fixed some problems with the DWG import
—  Header and Footer can be set as standard for future projects
—  In the street documentation, decimal places are no longer incorrectly always given as 00
—  A bug in the OpenGL shader was fixed
—  Various other bug fixes and improvements in geometry generation, project loading and documentation

New output design

The documentation of the project will have a completely new design with a new layout: 

—>  The font will be larger, and images and cover pages will be visually more attractive
—>  Contact details are on a separate page
—>  The disclaimer and the imprint can also be edited individually by the user

Furthermore there will be a complete room overview in the documentation listing all the rooms with their respective luminaires and energy data, it is no longer necessary to create outputs for each individual room.


New calculation method: Faster calculation and better visualization of complex objects

The previous calculation method (photon shooter) is enhanced by a process which takes detailed objects into special account. This is not only of benefit for the calculation speed and subsequent adjustments of light scenes but also leads to a general improvement in the presentation of detailed objects with many surfaces in CAD. Unlike the results achieved with the setting »Simplified illumination of furniture and objects«, with this enhanced method the lighting effect on the object surfaces should be displayed as realistically as possible.

Revised luminaire placement and snap function

We have revised the light lines and the snap mechanism for you. This will save you a lot of time with your light placement. We have added the following new features: - In the CAD you can see dimensions, the construction direction and a visualization of the luminaires to be placed - Luminaires can be distributed along the line either by number or by distance - We have revised the snap function for you, new features include the length grid and the angle snap.

Simplification for planning light in outdoor spaces

Previously there was no specific information in the navigation bar for outdoor spaces only and no specific view for these in CAD. This will change with the new version. We extended the navigation bar with a view for outdoor spaces. In addition it is also possible to visualize the contours of indoor and outdoor spaces during your work.


  • Some problems with the creation of complex geometries could be solved
  • An error in the calculation of the rollover computer with high ground reflection coefficients was fixed
  • Some errors in the creation and editing of individual room geometries have been fixed
  • A problem with the assignment of working planes and calculation objects to rooms was fixed
  • The reassignment of standards to existing road projects is now possible again
  • Some problems when importing IFC files were fixed
  • A problem when changing between EN 13201:2004 and ROVL 2011 has been solved
  • Some problems with loading projects created with older versions have been fixed
  • A display problem of ASR calculation surfaces with isolines was fixed
  • The number for value graphs is now correctly applied
  • An error in the rotation of light emitting surfaces was fixed
  • And of course several smaller bug

DIALux evo version history

See what we have changed in the past DIALux evo versions. Get information about bugfixes, new functions, improvements of existing features and much more.

New features

  • DIALux evo 8.2 provides the option to configure proxy servers under >>settings / general Settings / connection Settings<<

Changes and improvements of known features

    • The DIALux Start splashscreen has a new layout and shows the progress of loading DIALux


    • Fixed CAD display issues and crashes related to AMD Vega GPUs
    • A change to the energy tool no longer leads to a change in the utilisation profile of the area
    • Isolines can be saved again with a resolution higher than 1lx
    • Crashes during the calculation of some complex projects could be solved
    • Utilisation profiles for indoor and outdoor areas can now only be assigned to the appropriate areas
    • Correction of ULR calculation in road planning
    • Correction of the rotation for multi-headed luminaires in road lighting
    • Fixed crashes while loading projects and import of IFC files
    • Some translation errors have been corrected

    New features

    • Integrated message window with useful hints and information for support in working with evo
    • Two additonal standard objects: hemisphere and cone (truncated cone)
    • Allocation of luminaires that are located in more than one space can be changed to a particular one for documentation purposes
    • Japanese maintenance factor method according JIEG-001
    • Import wizard for DWG/DXF files (similar to image import wizard)

    Changes and improvements of existing features

        • Multiselection of single objects with line, field and circle arrangements
        • Image plans that are imported once can be rescaled via import wizard again
        • Change the sorting of road scene results
        • Images can now be deleted in documentation directly
        • Description of objects in project tree is more expressive
        • Speed improvements in working with luminaires and calculation surfaces
        • Speed improvements in loading sophisticated projects
        • Speed improvemtens in exporting DWG files (depends on project size)
        • Speed improvements in rendering documentation
        • Speed improvements in rendering false colours and isolines
        • When creating an object in the scene the allocation (storey, indoor or outdoor) depends no longer on the view that is currently active. The allocation dependends now on object's position itself


            • Documentation of surface results objects is sometimes to small
            • Documentation template "All" is extended by luminaire parts list for exterior area too
            • Issue during visualization of results after combining light scenes
            • Issue during calculation of maintenance factors for luminaires which were not assigned to spaces
            • Issue during loading Evo files greater than 7GB
            • Improved import behaviour for IFC, JPEG and Dialux 4 files
            • Improved import behaviour for SAT models
            • Improved undo behaviour for evo road
            • Issue calculating G* classes in evo road according EN 13201:2015
            • Issue during Drag & Drop of skylights
            • Issue duirng Drag & Drop of luminaires
            • Issue during dimensioning of windows
            • Issue during scaling of ASR calculation surfaces
            • Issue during visualization for element rotation
            • Duplicating a road geometry copies arrangements name too
            • Improved translation


            • An error has been fixed in the alignment of objects when copying along a line or a curve
            • Typing values in the polygonal line table using »Enter« now works as expected. The focus is now set to the next field
            • An error when moving rotated columns has been fixed
            • An error in scaling of beams has been fixed
            • An error has been fixed for daylight-relevant windows inside of a building
            • The room description is now also included in the outputs of the simple indoor planning

            New functions

                • Using of images as planning basis. Supported are * .jpg, * .bmp and * .png files
                • Support also of several raster graphics as planning basis in one project
                • Import Wizard to specify origin and matching size
                • Import of images via drag & drop
                • Import of images from the Windows clipboard, e.g. via the Windows snipping tool
                • The project start »empty rectangular room« has been replaced by the new function »Room planning«, which allows the creation of any room shape
                • Rooms can now be drawn directly into the CAD. The outer contours are generated automatically
                • When outer contours of different rooms touch, a new outer contour is automatically generated
                • When entering polygonal lines, the lengths of the individual line is now displayed as well as the angle between the lines
                • Lengths and angles of polygonal lines can be entered directly via the TAB-key
                • Entered values are blocked for mouse input, which is indicated by a small lock-symbol
                • When scaling objects the new lengths can be entered directly via the TAB-key
                • All objects can be set to the center of a room or an area via the context menu
                • Each room, floor, building and terrain view has its own coordinate system
                • These coordinate systems can be positioned and oriented by the user
                • All positions and rotations of objects are related to these coordinate systems
                • In the luminaire tool the luminaire efficiency and the luminous efficacy are additionally specified for the lighting data
                • In the luminaire tool a summary of the photometric data is displayed for luminaires with more than one light emitting surface
                • The north orientation is displayed in 3D and 2D with a small preview at the bottom right for each room, floor, building and terrain view
                • The appearance of the north orientation can be shown or hidden in the view options

                Improvements of existing features

                    • The standard database was updated to EN 12464-1: 2011 and EN 12464-2: 2014
                    • The point grid for calculation areas has been revised.  Each raster  is calculated strictly according to EN 12464-1 and -2
                    • The manual is no longer available for DIALux evo. Alternatively there are more up-to-date online resources for this
                    • The nodes in the output tree with the room names are sorted alphabetically
                    • The drawing of a coordinate system is available on the top of the CAD window
                    • The behaviour of polygonal lines and building contours has been revised
                    • The behaviour of the table for polygonal lines has been revised
                    • The minimum size of calculation areas has been adjusted
                    • Measurement files from daylight-guided-light systems (DDLS) can now be send to DIALux evo by drag & drop
                    • Luminaires in the road-lighting can now also be deleted via the context menu
                    • In the planning results of the road-lighting, in addition to the main arrangement, the secondary arrangements are displayed


                    • The x64 and x86 versions are now installed parallel (on 32bit systems only x86)


                      • The representation of the GR values in the result monitor was revised
                      • Several minor errors in editing objects in the CAD have been fixed
                      • An error while editing the floor contours in combination with the UNDO function has been fixed
                      • Fixed some problems with corrupt luminaire data
                      • Fixed a problem with displaying rooms after importing IFC files

                      New functions

                          • The lengths of manipulators are displayed in the CAD during construction
                          • The manipulators of auxiliary grid and the texture scaling now display the distances of the individual elements in the CAD
                          • The lengths and distances of manipulators can be edited directly in the CAD via »TAB«-key
                          • evo now distinguishes between two calculation types »Standard« and »Fast«
                          • In »Fast« mode, only the visible part of the building calculated
                          • The entire calculation pipeline has been revised and accelerated. The calculation times are thereby reduced
                          • In addition, the calculation can be limited to calculation surfaces using the setting »Calculate surfaces only«
                          • Min, max, average value and uniformity of luminance are now available in the output

                          Improvements of existing features

                            • Output: In the room summary the floor based room height was replaced by the clear room height
                            • The graphical interface has been revised and improved. The tools are more compact and require less space
                            • The manufacturer selection can no longer be closed
                            • Canceling the calculation is now faster
                            • Loading and saving complex projects has been speeded up


                            • The visualization of floor recessed light outputs has been improved
                            • Workplanes and daylight factor calculation surfaces are now included in the room summary printout
                            • An error during manipulation of polygonal roofs has been solved
                            • A warning has been solved, that occured when removing objects from a project
                            • An error in copying buildings and storeys has been solved
                            • The documented specific connection load (W/m²) is now calculated based on the room's floor area

                            New functions

                              • IFC import: Entire buildings and outdoor areas can now be imported automatically from IFC project files, without the need of manual contruction
                              • DWG drawings can now be included in printouts as a cutout of the required part
                              • The room summary's layout has been improved. In addition, there is the option of a simple and a detailed luminaire part list. By default, the simplified luminaire part list will be shown in the room summary
                              • A luminaire position plan is now included in the printouts in addition to a configurable reference coordinate system for outdoor scenes
                              • Calculation time can now be reduced by use of new calculation parameters as there are: »Only direct lighting without reflections«, »Calculation without furniture« and »Simplified indirect illumination of furniture and objects«. Active parameters will be documented in the printouts and the results overview
                              • Parts of calculation planes can be excluded from calculation and result interpretation by a cutout function. This is available for calculation grids, workplanes, task areas, room main surfaces, ASR A3.4 workstation areas and EN 12464-1 visual task areas
                              • Article numbers have been added to the luminaire catalog of road lighting
                              • Secifications according to IESNA Lighting Handbook (10th edition) have been added to the standards database
                              • The set aim angles of adjustable luminaires can now be exported as *.csv file

                              Improvements of existing features

                              • Loading DIALux projects is no longer interrupted by message boxes
                              • The printout page conficuration has been removed from the bottom area of the screen and is now available as overlay, making the configuration more convenient. The current page will be automatically re-rendered as soon as the configuration page is closed
                              • All product data sheets are now be grouped below one node in the printout tree. This significantly reduces the size of the tree and gives a far better orientation
                              • Unavailable pages are now hidden in the tree instead of showing them as disabled. This also reduces the printout tree size without losing information or functionality
                              • The pages for results overview, isolines, false colors, value chart and value grid are now combined in one page. There is one page per calculation plane and parameter. The desired result visualizations can be selected in the page configuration. All visualizations are activated by default
                              • The option to show DWG drawing has been removed from the display options and placed next to the view navigation bar. Additional drawings can be loaded from this place. The DWG control has been removed from the site, building and storey construction tools
                              • Result value grids and isolines are now been displayed automatically after calculation a light scene. This function can be activated and deactivated in the application settings, in the section »CAD«, if needed
                              • The default value range of isolines is now automatically set based on the calculated lux levels
                              • The calculation time of isolines, false colors and value grids for the CAD window is significantly reduced due to parallelization
                              • The user interface for configuration of isolines has been redesigned. User defined value scales can now be saved and reused

                              DIALux evo 6.2

                              • Improvement of daylight calculation
                              • implementation of the new standard for street lighting EN 13201: 2015, Part 2.3 and 5
                              • Performance boost for loading projects
                              • Improvements in road lighting
                              • Documentation of luminaire positions
                                • The printouts show luminaire coordinated within the ground plan as well as in a position table
                                • The luminaire orientation of C0/G0 planes are documented in CAD and ground plan
                                • Luminaires are systematically numbered to be easier found in table and ground plan
                                • Users can freely define a coordinate system for each room which is used as reference point for documenting luminaire positions
                              • Improvement of lamp tool
                              • Bugfixes
                              • calculation of daylight control systems - With the new DIALux evo 6, the planner can include real daylight control systems, skylights and façade elements in his daylight calculation. This includes vertical louvre blinds and textile blinds, skylights, foils and prismatic systems. The lighting designer places and configures multiple daylight system in layers. Depending on the date, time, orientation of the building and sky model DIAlxu calculates the daylight factor and illuminance values inside the building.
                              • implementation of the new standard for street lighting EN 13201: 2015, Part 2.3 and 5
                              • new user interface for road lighting
                              • location names can be edited permanently now
                              • performance improvements in lighting catalogs and road planning
                              • Tool for maintenance factors, for simplified or detailed calculation according to CIE97:2005
                              • Shorter calculation times due to reduced amount of luminaire groups. Initial and separated luminaire groups for all outdoor and indoor luminaires
                              • New manipulator for doors and windows
                              • Manipulation of extrusion volumes
                              • Design updates
                              • Numerous minor bug fixes
                              • Display value chart in CAD and DWG export, including enhanced DWG export features
                              • Display calculation process
                              • Improvements for the DWG Export
                              • Further improvements in road lighting
                              • Conversion of evo 4.1 graphics card requirements from OpenGL3.3 back to OpenGL3.0
                              • Correction of the calculation of the power density when imperial units are used
                              • Correction of translation errors
                              • Daylight calculation with CIE models; clear, overcast or cloudy skies
                              • Changes GUI: Start calculation, Calculation objects,
                              • Coloured ground plan, building geometry, luminaires, furniture, calculation surfaces
                              • Separate presentation of the results of 12464-1 surfaces in the room summary
                              • Display of false colour scales in the output
                              • Fading in and fading out of individual calculation surfaces
                              • Traffic light system to indicate that specified values are attained
                              • False colour slider
                              • ROVL and NPR 13201 norm
                              • Improvement in street planning
                              • Improvements for US market
                              • Many small improvements and bugfixes
                              • Import folder for luminaires and furniture
                              • Numerous improvements in street calculation
                              • Many small improvements and bugfixes
                              • Copying function to transfer extracts from DIALux evo output to other programmes, e.g. Word
                              • Remedy for error message occurring after repeated Undo/Redo in the DWG tool
                              • Correction of some degrees of reflectance in standard colours
                              • Correction of various translation errors
                              • Numerous minor bug fixes
                              • Material visualization directly in CAD for painted and metallic materials
                              • Faster output
                              • Street calculation according to 13201 with "street planning chart"
                              • Parallel planning of several schemes, e.g. different geometries or luminaire arrangements
                              • Visualization of the lighting effect of a single luminaire directly in CAD in real time
                              • evo "easy" - an extremely simplified GUI which makes the planning of simple rectangular rooms possible, similar to DIALux Light
                              • Energy assessment according to EN 15193 - During planning it is now possible to conduct an energy assessment with the option of displaying kWh/a, Leni or costs in any choice of currency
                              • Complete 64-bit version - the 64-bit version is not compatible with Windows XP and cannot load old DIALux 4 projects. However, there is more storage space for generating larger projects. Alternatively during setup a 32-bit version can be installed
                              • HDR image export
                              • Numerous small bug fixes
                              • Screenshot Export in JPG, BMP
                              • Global false colour rendering in CAD on all surfaces
                              • WASD control in CAD
                              • DWG Export
                              • Great improvement in performance, stability and memory usage
                              • Scroll-free shifting and zooming in rooms without scroll wheel (P + left mouse button = shift; Z + left mouse button = zoom)
                              • New floors can be inserted between two old floor
                              • Setting the focal width of the camera (ALT + right mouse button)
                              • New colour catalogue
                              • One-page output as in DIALux 4
                              • Improvement of the tool sequence in different modes