AftabRad Revit Add-in -> Export To Radiance -> Revit Category/Links Specifications

By selecting which categories can only be exported and which cannot, it is easily possible to filter out unwanted elements such as furniture, electrical equipment, mechanical pipes, etc. Therefore, by clicking on the Revit Category/Links Specifications button, the Material by Revit Category page will be opened. This page helps its users to decide on included or excluded categories, and their default optical surface properties values when exporting to Radiance.

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