Here, the parametric window frame was created using Geometry Scripting, while a Voronoi shader gave the glass a mosaic-like appearance. Jin has shared a detailed breakdown of her process, from creating the window shape to the glass material, along with the code, which you can explore by clicking this link.
Previously, the artist released Level Asset Audit Tool, which is an Unreal Engine plug-in designed to help artists and level designers quickly identify, visualize, and manage actors in a level that reference a specific asset: