mesh-processinglisted

# Mesh Processing This skill provides comprehensive guidance on mesh processing for architecture, engineering, and construction. Meshes are the workhorse representation for simulation (FEA, CFD, acoustics), fabrication (3D printing, CNC), visualization (rendering, VR/AR), and increasingly for design geometry itself. This reference covers data structures, operations, analysis, repair, UV mapping, quad meshing, and reverse engineering. --- ## 1. Mesh Processing in AEC ### 1.1 Why Meshes Matter Meshes represent 3D geometry as collections of vertices, edges, and faces. In AEC: - **Simulation**: Finite Element Analysis (structural), Computational Fluid Dynamics (wind/airflow), thermal simulation, acoustic simulation, and daylight simulation all require mesh discretization of geometry. The mesh quality directly determines simulation accuracy. - **Visualization**: Real-time rendering (game engines, VR/AR) operates on triangulated meshes. Level-of-detail mesh decimation controls rendering performance. - **Fabrication**: 3D printing requires watertight triangulated meshes (STL/3MF). CNC milling requires surface meshes for toolpath generation. Robotic fabrication uses mesh representations for collision checking and path planning. - **Scanning**: LiDAR, photogrammetry, and structured light scanning produce point clouds that are reconstructed into meshes. Scan-to-BIM workflows begin with mesh processing. - **Design**: Freeform architectural surfaces (shells, facades, roofs) are oft