🔁 Convert COB to IGES: Caligari File to IGS Model Converter

How to Convert COB to IGES?

Get precise COB to IGES conversion results every time. Our step-by-step guide and robust tool are everything you need to simplify your workflow:

  1. 📥 Download and Install

    Download and install Autoconverter on your system. This application will let you to convert your COB files to IGES 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 IGES Format

    Go to File > Save As, select IGES (*.igs, *.iges) as the output format, choose your destination folder and filename, then click Save to complete the COB to IGES 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.

IGS IGES File Format - Initial Graphics Exchange Explained

The IGES (Initial Graphics Exchange Specification) file format is widely used across CAD (Computer-Aided Design), CAM (Computer-Aided Manufacturing), and CAE (Computer-Aided Engineering) industries for transferring 3D models and complex designs between different software platforms. Developed in the 1980s and standardized by ANSI and ISO, IGES remains a crucial, legacy-neutral format for 3D data exchange, ensuring long-term interoperability.

What is an IGES (.IGS) File?

IGES files store detailed 3D CAD data using a text-based format that can represent wireframes, surfaces, and solid models. It enables seamless sharing of geometric information without dependency on proprietary software, making it ideal for collaborative projects across engineering, manufacturing, and design fields.

Key Features of the IGES/IGS Format

  • Text-Based Geometry Storage: All geometric and structural data is saved in human-readable ASCII text, allowing easy manual editing but often resulting in larger file sizes for complex designs.
  • Color Information: IGES supports color at the assembly level, preserving important visual distinctions between different components and parts in a model.
  • Transparency Limitations: Unlike newer 3D file formats, IGES does not support transparency (alpha channels), meaning that opacity settings in original designs are not retained after export.

IGES/IGS File Conversion and Processing

Autoconverter offers complete read and write support for IGES files using the Open Cascade technology stack, ensuring full compatibility with the latest IGES specifications. It processes IGES data as triangulated mesh geometry for maximum compatibility. For workflows requiring preservation of native NURBS surfaces and smooth 3D definitions, we recommend using Autoshaper, which maintains original surface accuracy throughout the conversion process.

COB vs IGES - Comparison

The table below summarizes the key differences between COB and IGES file formats for 3D modeling, CAD, or GIS workflows.

Feature COB IGES
Extensions .cob, .scn .igs, .iges
Name Caligari TrueSpace Object Initial Graphics Exchange Specification
Textures ❌ ❌
Colors ✅ ✅
Geometry Components ❌ ❌
User Attributes ❌ ❌
Quads ❌ ❌
Importers
Exporters 🚫

More COB and IGES Conversion Guides

Take the complexity out of COB to IGES conversion with our expert guides below. Everything you need for accurate COB files conversion is right here:

👉 From COB to IGES - conversion made effortless. Use our COB to IGES converter now and experience the speed, accuracy, and simplicity your projects deserve.