Mobirise Site Builder

What's new in the latest version of DL-Light

You'll find here the latest enhancements of DL-Light. The details of previous versions is shown below.

Version 5.1.25: Improved help files, few bug fixes

Version 5.1.21 includes a fix for preference window.

Version 5.1.16: The macOS version is back!

It includes exposure to direct sunrays, sky view factor and the new Watt module.

Daylight Factor, Luminous autonomy and BREEAM calculation will be added as soon as possible.

Version 5.0.15: Improved management of large SketchUp files (hundreds of layers, etc.)

 New in version 5.0.14 : Windows version now includes the watt module to calculate the energy arriving on the outside faces.

New simpler interface for all modules.

DL-Light Release Notes


    Bug fix regarding Push/Pull tool.

    Quick patch to take into account South hemisphere season definition


    Support of SketchUp 2017.


    In SunExposure module added separate definition of site Location and Weather file to reach a maximum position of the sun.

    In SunExposure module added possibility to select time step in range 1-60min for clear sky calculation.

    Added feature ‘Show/Hide virtual surfaces’ in SE and SVF extension.


    User interface is now using jQuery libraries.

    Improved algorithms for custom time period.

    DF ReportDialog shows average DF value per surface.


    Fixed font size problems for Windows 8 for high resolution screens or with modified font size in advanced Windows settings.

    Fixed bug when some of location coordinates are 0.

    Fixed DA calculation when location coordinates and weather data are different.


    Added new extension DaylightFactor

    Added faces highlighting when working in ReportDialog and SpaceTypeDialogAdded

    Added naming of spaces for easier reporting

    Added reports for Skyview Factor and SunExposure

    Added possibility to Detach all Materials and revert to previous configuration of materials


    Tools ‘Create Copy’ and ‘Create Copy in Instances’ have been simplified and work like other standard SketchUp tools.

    Copy surfaces created only for faces selected after tools activation

    Improved DA BREEAM accuracy – sensors closer to borders than limit distance are removed from minimum illuminance

    Change format of output report files

    Improved palette appearance in snapshot images

    Bug fixes


    Access to detailed results per surface in Autonomy, Breeam, SVF and SunExposure.

    Added report dialog for SVF and SunExposure.

    Minor improvements.

    Bug Fixes.


    Calculation of BREEAM requirements for minimum point illuminance.

    Calculation of BREEAM requirements for average illuminance.

    Space type management for BREEAM.

    Evaluation of BREEAM illuminance requirements for a whole project.


   New material manager.

    Report dialog

    Bug fixes.


    Daylight Autonomy calculation

    Faster calculation is all 3 modules

    Better management of calculation abort

    Bug fixes


    SkyView Factor can now be calculated

    Per layer selection

    One-click selection

    Check for updates

    Extension switch


    Better FC scale generation

    Improved management of Output directory

    Fixed SunExposure calculation for single hour

    Reorganization of observers

    Bug fixes.