ThatOpen Fragment System

Overview

The fragment system is ThatOpen's optimized geometry pipeline for BIM models. It converts IFC files into a GPU-friendly binary format built on FlatBuffers and THREE.InstancedMesh, enabling fast rendering of large models with millions of elements. The @thatopen/fragments package provides the binary format, worker architecture, and core operations. FragmentsManager in @thatopen/components orchestrates model lifecycle, raycasting, data queries, and coordinate alignment.