A Manhattan district around 375 Park Avenue, running as a live building twin.

FragmentsUnreal is an open-source Unreal Engine plugin that streams IFC building models in as That Open .frag files, with LODs and instancing built as they load and every element keeping its BIM data. Here it powers a city-scale scene with a building-operations panel: occupancy, comfort, plant capacity, energy and work orders, on simulated building data. The whole app runs on a cloud GPU and reaches you as video, so there is nothing to install.

• 01Fly across the district, then zoom into a single building.
• 02Open the 375 Park Avenue panel: Overview, Model and Operations.
• 03Select an element to read its BIM properties.
• 04Follow the chiller incident from alert to work order.