The .ply file format in 3D scanning is primarily used to store and exchange 3D point cloud data and mesh models, enabling efficient transfer of scanned 3D information.
It retains key geometric details generated during scanning, such as vertex coordinates, color information, and surface normals, which are crucial for maintaining model accuracy.
Upstream, it accepts raw data from 3D scanners; downstream, it is compatible with 3D modeling software (e.g., MeshLab, Blender) for editing, rendering, or 3D printing preparation.
Users often use tools like MeshLab to view, clean, or optimize .ply files, making it a practical choice for 3D scanning workflows.