# Sorting/Filtering Curtain Panel Geometry by Material

**URL:** <https://discourse.mcneel.com/t/sorting-filtering-curtain-panel-geometry-by-material/173404>\
**Category:** Revit\
**Tags:** windows\
**Created:** [January 15, 2024, 7:30pm UTC](https://discourse.mcneel.com/t/sorting-filtering-curtain-panel-geometry-by-material/173404 "2024-01-15T19:30:05Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![ClarenceSomerset](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/clarencesomerset/32/510802_2.png) [@ClarenceSomerset](https://discourse.mcneel.com/u/ClarenceSomerset)\
**Post date:** [January 16, 2024, 4:09pm UTC](https://discourse.mcneel.com/t/sorting-filtering-curtain-panel-geometry-by-material/173404/8 "2024-01-16T16:09:16Z")

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Just wanted to add that every geometry has to be assigned a subcategory - or unassigned geometries will assume the next available material. I think Japhy made this clear but I missed the implication of not assigning subcategories for each piece of geometry and wound up with mullions getting categorized as glazing.

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_[View the full topic](https://discourse.mcneel.com/t/sorting-filtering-curtain-panel-geometry-by-material/173404)._