Convert FBX to DGN

Understanding FBX and DGN file formats

FBX (Filmbox) is a popular 3D file format developed by Autodesk, widely used for exchanging 3D geometry, animation, and scene data between various modeling, animation, and game development software. It supports complex data such as meshes, textures, lighting, and animation.

DGN is a CAD file format used primarily by Bentley Systems' MicroStation and other engineering and architectural design software. DGN files store 2D/3D vector graphics, design elements, and metadata for infrastructure and construction projects.

Why convert FBX to DGN?

Converting FBX to DGN is essential when you need to transfer 3D models or scenes created in animation or modeling software (like Autodesk Maya or 3ds Max) into CAD environments for engineering, architectural, or construction workflows. This enables seamless collaboration between creative and technical teams.

How to convert FBX to DGN

Direct conversion from FBX to DGN is not natively supported by most software. The process typically involves an intermediate step, such as converting FBX to DWG or DXF, then importing into a CAD application that supports DGN export.

Recommended software for FBX to DGN conversion

• Bentley MicroStation: MicroStation can import DWG or DXF files, which can be exported from FBX using Autodesk software. Once imported, use File → Export → DGN to save the file in DGN format.
• Autodesk 3ds Max or Maya: Open your FBX file and export it as a DWG or DXF file using File → Export → Export Selected and choose DWG/DXF as the format.
• AnyCAD Exchange3D: This is a commercial converter that can handle various 3D file conversions, including FBX to DGN, directly or via intermediate formats.

Step-by-step conversion process

1. Open the FBX file in Autodesk 3ds Max or Maya.
2. Export the model as a DWG or DXF file using File → Export → Export Selected.
3. Open the exported DWG/DXF file in Bentley MicroStation.
4. Export the file as DGN using File → Export → DGN.

Tips for successful conversion

• Check geometry and scale after each conversion step to ensure accuracy.
• Some complex FBX features (like animations or materials) may not transfer to DGN.
• Consider cleaning up the model in the intermediate DWG/DXF stage for best results.