AftabRad Revit Add-in -> Without Sky (Night Time Scene)

In this tutorial, we can see how to make a calculation point-based or a view-based rendering for a scene including lighting fixtures families.

So, to do so, we should do the following steps.

1- Press ImportToRevit button in the AftabRad Add-in

2- In the Revit2Radiance page, please check the Including Lighting Fixtures checkbox (it will be disabled if there is not any lighting fixture family in the model).

Then, it is recommended to select the Without Sky (Night Time Scene) for the Type of Sky/Analysis if you want to do the electrical lighting simulation at night.

After checking the Including Lighting Fixtures checkbox, now we should press the Revit Category/Links/IES Files Specifications button.

3- After pressing the Revit Category/Links/IES Files Specifications button in the Revit2Radiance page, please go to the IES Files Specifications in the Material by Revit Category

Then, under the IES Files Specifications in the Material by Revit Category, we need to specify the IES file location under the IES File Path for each IES File Name by pressing the open button next to each row.

Under the CCT column, we can change the Correlated Color Temperature (CCT) of each lighting fixture family too.

Finally, after defining all IES file paths, we should press the Apply Specifications to Project to save all new inputs and come back to the Revit2Radiance page.

4- After choosing either view based rendering (to know more about how to do a view based rendering analysis, you can check one of these links: link1, link2, link3, link4, or link5)

or point-based calculation simulation (to know more about how to do a calculation point-based analysis, you can check one of these links: link1, or link2)

5- Finally, press the Do Export2Radiance button

6- The results should be like these:

- View based rendering (TrueColor)

- View based rendering (FalseColor)

- A calculation point-based analysis

However, when importing the results by Data2Revit page, it is recommended to choose Illuminance (lux) and 179 as the Multiplying Factor under the Calculation Types.