Notice two fixtures have a photometric web (green checkmark), and two have a generic (red x) light source associated with them. The following image is a section within Revit, with the lighting fixture’s Light Source sub-category turned on.
Revit can host these files and use them to define the light source within a lighting fixture family. The resultant definition is captured in an IES file. Early in a project, these may be used to imply electric lighting, but in most cases would ideally give way to a more accurate option defined next.įor photometric, the light source is mathematically defined based on light distribution as measured from an actual lighting fixture in a lab. These options are not based on any real-world lighting fixture. There are two types of light sources possible within a Revit family: generic and photometric.įor generic, there are three light distribution types: sphere, hemispherical, and spot. You can learn more in this BIM Chapters blog post: IES BIM Standards Committee. Currently, I am the chair of the national Illuminating Engineering Society (IES) committee on BIM Standards. I have been involved in various aspects of lighting design and analysis for several years. The image below, of the AIA COTE 2020 award-winning Austin Central Library, in Austin, Texas, USA, shows many of these techniques employed during design and construction.Īustin Central Library design by Lake|Flato Physical analysis: building models in our shop.Analyze electric lighting: Revit + ElumTools.Analyze annual daylight (UDI, sDA, ASE): Rhino + Climate Studio.Visualize daylight and shadows: Revit/SketchUp/Rhino + Enscape.Although this covers lighting in Revit, the same results (in Enscape) are also possible in the other supported design platforms SketchUp, Rhino, Archicad, Vectorworks.Īt Lake|Flato, we consider lighting in many ways, including:
This post will focus on developing accurate electric lighting (aka artificial lighting) using Revit and Enscape. Therefore, lighting should be analyzed as much as possible during the design stages of a project. Whether natural or electric, proper lighting can make a space more vibrant and mentally stimulating. In architecture, lighting is one of the most important design elements to get right.
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