Convert RVM to OBJ

Understanding the RVM and OBJ file formats

RVM files are proprietary 3D model files used primarily by AVEVA PDMS and E3D software for plant design and engineering. They store complex 3D geometry, metadata, and hierarchical structure information for industrial facilities. OBJ files, on the other hand, are a widely supported, open 3D geometry format developed by Wavefront Technologies. OBJ files store 3D mesh data, including vertices, faces, normals, and texture coordinates, and are compatible with most 3D modeling and visualization tools.

Why convert RVM to OBJ?

Converting RVM to OBJ allows you to use plant design models in a broader range of 3D applications, such as Blender, Autodesk Maya, or Unity. OBJ files are ideal for visualization, rendering, and further editing outside the original AVEVA environment.

How to convert RVM to OBJ

Direct conversion from RVM to OBJ is not natively supported by most 3D software due to the proprietary nature of RVM files. However, specialized tools and plugins can facilitate this process.

Recommended software: AVEVA E3D/PDMS with Navisworks or Blender

• AVEVA E3D/PDMS: Export your RVM model to a neutral format such as IFC or DWG if available.
• Autodesk Navisworks: Import the exported file, then use the Export function to save as FBX or OBJ (with plugins).
• Blender: Import the intermediate file (e.g., FBX), then use File → Export → Wavefront (.obj) to create the OBJ file.

Alternatively, third-party converters like Datakit CrossManager or Okino PolyTrans can handle RVM to OBJ conversion directly, but these are commercial solutions.

Step-by-step conversion process

1. Open your RVM file in AVEVA E3D/PDMS.
2. Export the model to a neutral format (e.g., IFC, DWG, or FBX).
3. Import the exported file into Blender or Navisworks.
4. In Blender, go to File → Export → Wavefront (.obj) and save your OBJ file.

Tips for successful conversion

• Check for geometry or metadata loss during export/import steps.
• Use the latest versions of software and plugins for best compatibility.
• For large or complex models, consider breaking them into smaller parts before conversion.

Conclusion

Converting RVM to OBJ enables broader use of plant design models in visualization and 3D applications. While the process may require intermediate steps or commercial tools, it is achievable with the right workflow and software.