Develotecca's answer shows how to load the base THREE.geometry from a JSON file. However, in my experience, the geometry exported by the three.js editor is of type BufferGeometry (which is more efficient than basic geometry), so they need to be loaded using THREE.BufferGeometryLoader, not THREE.JSONLoader.
, , . JSONLoader , ( MeshfaceMatrial, , ). JSONLoader, ,
THREE.JSONLoader: , . THREE.SceneLoader. '
. .
http://threejs.org/docs/#Reference/Loaders/SceneLoader ( ), https://github.com/mrdoob/three.js/blob/master/src/loaders/SceneLoader.js, - http://threejs.org/examples/webgl_loader_scene.html
, . SceneLoader , , , , BufferGeometryLoader JSONLoader, , , ,
scene = loaded.scene
scene.add()
, ,
<script src="js/loaders/ColladaLoader.js"></script>
..
loader.addHierarchyHandler( "dae", THREE.ColladaLoader );
Collada.