TouchDesigner imports geometry, animations and scenes using the FBX file format from Maya, 3DS Max, Cinema4D, Houdini and others
TouchDesigner currently uses the 2019.0 version of the FBX SDK.
FBX is a file format and set of libraries from Autodesk that is used to exchange models, animations and image/texture data between applications. TouchDesigner reads and writes FBX files and supports most of its features. See also File Types
You can drag-drop a
.fbx into a TouchDesigner network, or load it directly into an FBX COMP. Alternatively they can be imported via the file menu under File -> Import File...
You can save SOP geometry to a
.fbx file by right-clicking on any SOP and selecting 'Save Geometry...' from the menu.