Prepare OCCT BRep geometry for FBX
The OCCT BRep-to-FBX route uses the OCCT BRep reader, mesh preparation and the FBX writer. Choose the geometry and representation required by the destination application.
Read native OCCT BRep shapes from BREP or SHAPE files. This provides geometry and topology for modeling or tessellation. A standalone shape file is not an XDE document and should not be assumed to contain assembly names, colors or materials.
Prepare mesh geometry for FBX delivery
Use the imported shapes directly for a precise CAD writer, or generate surface triangulation for a mesh writer. If the input contains open shells, faces or wires, select the geometry appropriate to the target instead of assuming every shape is a solid.
Write the selected mesh geometry with the commercial FBX interface. Prepare the supported scene and placement mapping required by the receiving application. Check appearance and other attributes individually rather than assuming all source properties have an FBX writer mapping.
Validate the converted model
If application-owned labels, placements or appearance must accompany the shape, supply them explicitly in the document passed to the writer. Keep this enrichment distinct from information read from the BRep file.
Reopen the FBX in the destination and compare scale, orientation, geometry coverage and placements. Verify the actual version and property mapping needed by that application. Retain the engineering source for information that the scene derivative cannot carry.
For repeated jobs, retain the source, preparation settings and representative output checks. Discuss this conversion with the input files, destination application and required geometry and attributes.