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Thursday, March 6, 2014

Updated Daylighting Analysis for Revit Technology Preview Now Available (12 February 2014)

From Scott Sheppard's It's Alive in the Lab blog:

"Light, light, light — everybody needs the light." — Led Zeppelin, 1975.

With this release we have implemented a ton of new features and bug fixes that will make your LEED and daylighting design analysis workflows much easier and smoother. Here are some of the new features:

'Daylighting’ floor plans are automatically created for all Levels with Rooms that are 'Include in Daylighting’. The floor plans will show results only for Rooms where the parameter 'Include in Daylighting’ is checked (equivalent to the LEED 'Regularly Occupied’ designation, as outlined in the EQ Space Matrix). Look for these new floor plans in the Project Browser with the suffix '- Daylighting’.


Orthographic 3d views (like 'default 3d’ and 'LEED 2009 IEQc8.1 Daylighting’) behaviour is unchanged, and those views will always show results for all floors analyzed whether the areas are 'Include in Daylighting’ or not.

In all AVF photometric views (orthographic 3d and plan views), you can view results for either 9am or 3pm on 9/21. To do this, select the AVF photometric surface



then choose the desired time to display on the surface from the Properties window.

The results in the 'LEED 2009 IEQc8.1 Room Schedule’ now show combined results from 9am and 3pm. Per LEED guidelines, both 9am and 3pm must have 75% of regularly occupied spaces (see: EQ Space Matrix) meet the thresholds, so the results are for the worst of the two cases and only are shown for Rooms that are checked as 'Include in Daylighting’.

The 'LEED 2009 IEQc8.1 Floor Schedule’ is now available with summary results for both times including only the Rooms on each level that are 'Include in Daylighting’.


Overall summary results are shown in an information window after 'Generate Results’ is selected and results are calculated. This window shows the combined results for both times for the whole building for all Rooms that are 'Include in Daylighting’.


The analysis now supports customization of all settings in the 'LEED 2009 IEQc8.1 Daylighting’ 3d view Properties except the Rendering Settings and the Section Box settings. This means that you can choose Phase Filters and Design Options before selecting Run Analysis and they will be respected by the model exporter. Note that the default 'LEED 2009 IEQc8.1 Daylighting’ 3d view that is created selecting Run Analysis for the first time includes the 'Show All’ phase filter. This will probably have to be reset for models with objects in multiple phases. The Rendering Settings (lighting, sky and time settings) and the Section Box settings will be reset each time Run Analysis is clicked.

You can now open and run analysis jobs on more than one project at a time. Results will be downloaded to the correct project and you will be notified which project analysis is done after complete.

The legend has been improved to better show the range of results of interest. The values of the points shown in AVF is capped at 6000 lux.

You can now turn on and off individual AVF photometric surfaces by level, so you can explore each level in detail in a 3d view, create overhead views for each level, etc. Use the controls in the 3d view properties > Analysis Display Settings to control visibility.


Results are available in the AVF Photometric plan in either Lux or FootCandles. Use 3d view properties > Analysis Display Settings to control Scale/Units. Note that this does not change the units used in the AVF scale settings or thresholds, only the AVF legend.

A bug was corrected that caused timezone setting associated with the project Location to be ignored. Solar position and climate data values have now been validated against our test models.

Error messaging has been much improved. Most common failures are now reported explicitly.

This update fixes a failure reporting error where the wrong message was displayed if Green Building Studio was down.

There's more information available on Scott Sheppard's It's Alive in the Lab blog.

The Daylighting Analysis for Revit technology preview can be joined here.

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