Version history

Here you can find all changes of the latest DIALux evo versions. Find out about bug fixes, features, improvements and much more.

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DIALux evo 7.1

Version:   |   Released: 2017-08-21


  • 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

DIALux evo 7

Version:     |     Released: 2017-04-03


  • 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

Version:     |     Released: 2016-11-02

  • 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

DIALux evo 6

Version:     |     Released: 2016-04-24

  • 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 DIALux 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

DIALux evo 5.2

Version:     |     Released: 2015-12-07

  • 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

DIALux evo 5.1

Version:     |     Released: 2015-08-31

  • Numerous minor bugfixes

DIALux evo 5

Version:     |     Released: 2015-04-30

  • 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

DIALux evo 4.1

Version:     |     Released: 2015-02-26

  • 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

DIALux evo 4

Version:     |     Released: 2014-11-28

  • 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

DIALux evo 3.3


  • Improvements for US market
  • Many small improvements and bugfixes

DIALux evo 3.2


  • Import folder for luminaires and furniture
  • Numerous improvements in street calculation
  • Many small improvements and bugfixes

DIALux evo 3.1


  • 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

DIALux evo 3


  • 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

DIALux evo 2


  • 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