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******       Cerno®      ******
******    Revit Family   ******
******       README      ******
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MODEL: Libri
SPEC SHEET: https://cernogroup.com/wp-content/uploads/Cerno-Libri-BS-TearSheet-0125.pdf
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DATE CREATED: 7 / 21 / 2026
DATE MODIFIED: --
CREATED BY: Cerno
REVISION NOTES: --
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I. General Notes:
 
1. The .ies photometric data file is not included in this Revit family file (.rfa), however, it is available through the website listed above. These files can deliver accurate results for photometric study and, in many cases, offer realistic rendering. In other cases, these absolute .ies files may not offer the best solution for rendering because of factors such as housing geometry and the photometric center of the .ies file. In such cases, changing the .ies file to one/or more alternative light sources may create a better rendering.
2. All Cerno .rfa files may contain minor reductions in geometric complexity. Such reductions are typically internal components or small external elements that would generally not be noticeable in renderings
3.  All Cerno Revit Materials are digital representations and can vary slightly from real-world products.
4. Cerno makes no representation of the completeness or accuracy of any photometric analysis performed with a Family. The visual and calculative performances of Revit models are only as accurate as permitted by the quality of third-party provided .ies files and the performance and stability of Revit itself and any associated third-party software/plugins


II. Family-Specific Notes (Libri):


    Note: Family-specific notes are often (but not always) associated with parameters listed in the Family's Type Editor.


1. There is a small circular grove in the actual product that is not present in the revit family. It sits on either side of the main box about a half inch down.
2. The left and right versions of the Libri are available as family types.
3. The libri arm can be adjusted on two axes. See the spec sheet for the range of acceptable angles. 
4. In the revit family the horizontal angle means the angle between the ground and the arm. The vertical angle means the angle between the wall and the arm. 
5. The libri emits light from the end of its arm. In the revit family the end of the arm is an emissive material but the actual light source is not attached to the end of the arm.