Convert OBJ to XSI

Understanding OBJ and XSI file formats

OBJ is a widely used 3D geometry definition file format developed by Wavefront Technologies. It stores 3D model data, including vertices, texture coordinates, normals, and polygonal faces. OBJ files are popular for their simplicity and compatibility with many 3D graphics applications.

XSI refers to the Softimage XSI file format, used by Autodesk Softimage (formerly Softimage|XSI), a 3D graphics application. XSI files can store complex 3D scenes, including models, materials, animation, and scene information, tailored for use within the Softimage environment.

Why convert OBJ to XSI?

Converting OBJ to XSI is necessary when you want to import 3D models created or exported in the OBJ format into Autodesk Softimage for further editing, animation, or rendering. The conversion ensures compatibility and preserves as much model data as possible.

How to convert OBJ to XSI

Direct conversion from OBJ to XSI is not always straightforward, as the XSI format is proprietary and less commonly supported by modern converters. However, you can use Autodesk Softimage itself or intermediary formats to achieve the conversion.

Using Autodesk Softimage

1. Open Autodesk Softimage.
2. Go to File → Import → Wavefront OBJ and select your OBJ file.
3. Once imported, make any necessary adjustments to the model.
4. To save in XSI format, go to File → Save As and choose the XSI file type.

Alternative: Using intermediate formats

If you do not have access to Softimage, you can use a 3D converter like Autodesk FBX Converter or Blender to convert OBJ to FBX or Collada (DAE), then import that file into Softimage and save as XSI.

1. Open Blender (free and cross-platform).
2. Go to File → Import → Wavefront (.obj) and select your OBJ file.
3. Export the model via File → Export → FBX (.fbx) or Collada (.dae).
4. Import the FBX or DAE file into Softimage and save as XSI.

Best software for OBJ to XSI conversion

• Autodesk Softimage – Direct import and export support for both formats.
• Blender – Free, open-source, and supports OBJ import and export to intermediary formats.
• Autodesk FBX Converter – Useful for converting between 3D formats before importing into Softimage.

Tips for successful conversion

• Check for material and texture compatibility after import.
• Clean up the mesh in Blender or Softimage to avoid geometry issues.
• Always save a backup of your original OBJ file before conversion.