From "Augmented Reality For the Web", threex.webar. as link [url]https://github.com/jeromeetienne/threex.webar[/url]
I exported FreeCAD model to WebGL, then use NotePad++ copy code from outputfile and replace to Part that added an object in the markerObject3D. Replace variable named "scene" in WebGL to "markerObject3D"
The Model example size is very small because widht of marker is mark as 1 unit equal to 1 unit in WebGL export file.
[attachment=2]AugmentedReality_from_FreeCAD.png[/attachment]
[attachment=1]TestModelHome03.FCStd[/attachment]
I'm hard to explain. get the code.
[attachment=0]TestFreeCAD2AR.zip[/attachment]