📁 COB to PLY: How to Convert Caligari File to Polygon File Format

How to Convert COB to PLY?

Converting COB to PLY has never been easier. Follow our step-by-step guide and let our reliable tool do the heavy lifting:

  1. 📥 Download and Install

    Download and install Autoconverter on your system. This application will let you to convert your COB files to PLY format - no additional CAD software required.

  2. 📂 Open Your COB File

    Go to File > Open… to load your COB file (*.cob, *.scn), or drag and drop it directly into the application window. The model loads into the 3D viewport for inspection before converting.

  3. 💾 Save As PLY Format

    Go to File > Save As…, select PLY (*.ply) as the output format, choose your destination folder and filename, then click Save to complete the COB to PLY conversion.

COB Caligari TrueSpace COB File Format

The COB file format was developed by Caligari Corporation for its 3D modeling and animation software, TrueSpace. COB files store complete 3D scene data including geometry, materials, textures, lights, and animation. Though TrueSpace is now discontinued, COB remains an essential format for preserving and converting legacy 3D content.

Key Features of COB Files

  • Full 3D Scene Storage: COB files encapsulate entire scenes with objects, lighting, cameras, and animation data.
  • Two Format Variants:
    • ASCII COB: Human-readable format ideal for manual inspection and debugging.
    • Binary COB: Compact format optimized for performance and faster loading times.
  • Material & Texture Support: Includes surface colors, image textures, and basic shading information.
  • Geometry Types: Supports both NURBS-based and polygon mesh 3D models for greater flexibility.

COB File Conversion Tools

Use Autoconverter and Automesher Application to import and convert COB files into modern 3D formats such as FBX, OBJ, SKP, STEP, and SAT. Our converters retain crucial data including UV mapping, materials, and mesh topology by utilizing the Open Asset Import Library (Assimp) for accurate and reliable file processing.

Note: COB files can only be imported - exporting to COB format is not supported.

PLY PLY File Format - Polygon File for 3D Mesh Models

The PLY file format (Polygon File Format), also known as the Stanford Triangle Format, is a versatile and lightweight standard for storing 3D mesh data. Originally developed at Stanford University, PLY files are widely used in 3D scanning, computer vision, and scientific visualization thanks to their flexibility and support for both ASCII and binary encodings.

Key Features of PLY Files

  • Mesh Structure: Supports detailed geometry with vertices, polygons, and triangle faces.
  • Rich Metadata: Stores color (RGB), normals, transparency, texture coordinates, and user-defined custom attributes.
  • Dual Encoding: Offers ASCII for human readability and binary for efficient storage and performance.

PLY File Converters

Autoconverter provides fast, reliable PLY file conversion to a wide range of 3D formats including STL, OBJ, FBX, STEP, and SKP. Our PLY converter preserves mesh topology, color data, and optional attributes - perfect for use in CAD software, game engines, and 3D scanning workflows. Drag and drop to convert PLY files quickly and accurately - no data loss, no hassle.

COB vs PLY - Comparison

The comparison table below highlights the key differences between COB and PLY for 3D modeling, CAD, and GIS applications.

Feature COB PLY
Extensions .cob, .scn .ply
Name Caligari TrueSpace Object Stanford Polygon
Textures ❌ ❌
Colors ✅ ❌
Geometry Components ❌ ❌
User Attributes ❌ ❌
Quads ❌ ✅
Importers
Exporters 🚫

More COB and PLY Conversion Guides

Not sure how to handle COB to PLY conversion? Our expert guides below walk you through COB files conversion clearly and efficiently:

👉 Want to convert COB and PLY formats without the hassle? Our COB to PLY converter makes the process fast, clean, and error-free - try it now.