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PLY File Format Explained

The Polygon File Format, also known as the Stanford Triangle Format (PLY), is a 3D file format developed at Stanford University for storing data from 3D scanners. It is primarily used to represent digitized objects and point clouds in scientific and academic research.

	Icon	Extension	Original Software	Year	Primary Industry	Geometry	UV Maps	Textures	PBR	Animation	Rigging	Open Use
		.PLY	Polygon File	1994	Gaussian Splatting 3D Scanning Computer Vision	Mesh Point Cloud	–	–	–	–	–	✔
PLY File Format Details What It Stores PLY files store vertex coordinates, face definitions, normals, and color information. They support both ASCII for readability and binary for performance, allowing for custom properties such as transparency or surface confidence values. Primary Use Cases Archiving high-density 3D scanning and photogrammetry data. Storing point cloud data from 3D scanning, depth sensing, and LiDAR capture workflows. Interchange format for scientific visualization and mesh processing. Strengths Supports extensible elements and properties for storing additional per-object, per-vertex, or per-face data. Efficient binary encoding for large, dense datasets. Simplicity of structure makes it easy to parse for custom tools. Limitations Lacks support for animation, rigging, or scene hierarchies. Material support is limited to basic color and attribute data without standardized PBR or texture workflows, and is non-standardized compared to modern formats. Common Software Support Supported by Blender, MeshLab, CloudCompare, and Rhino. It is also a standard format in libraries like Open3D and Point Cloud Library.

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PLY File Format Details