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FBX Converter

Table of Contents

Overview

FBX_Reader can read files in FBX format.
FBX_Writer can write files in FBX (7.2/7.4/7.5 version) in Binary and ASCII format.

Scope

Import Export
  • polygonal representations
  • assembly structure
  • names
  • colors, materials, textures
  • polygonal representations
  • assembly structure
  • names
  • colors, materials

Measurement Units

In accordance with the FBX format specification, 3D coordinates in FBX files are to be stored in centimeters. Therefore during export CAD Exchanger converts values in polygonal representation (stored in millimeters as explained here) dividing them by 10.

Note
FBX converter doesn't support Base_LU_Micrometers and Base_LU_Mils units. If either of these values is set with Base_ReaderParameters::SetLengthUnit, the importer will use Base_LU_Centimeters instead.

Import of materials

In FBX a single part can have multiple materials, each for a specific set of vertices in the part's geometry. If a part has multiple materials, then the its mesh is split into multiple ModelData_IndexedTriangleSet objects, each containing a portion of a mesh with a single material. Appearance() property of each of these ModelData_IndexedTriangleSet objects contains the respective material.

Parameters

Exporter Parameters

The FBX export parameters are controlled by FBX_WriterParameters. The following table contains a list of parameters for FBX export:

Parameter Default value Description
FBXVersion() V2012 Specifies the version of FBX file.
  • V2012 (7.2)
  • V2014 (7.4)
  • V2016 (7.5)
  • V2019 (7.5)
IsBinary() false Specifies whether a file must be written in binary or text format