PR just submitted in short : Brand new feature : Mesh Facet Data Examples : mesh.updateFacetData(); // enables and computes the facet data for this mesh // this can be called on demand, if the mesh is // morphed for instance, even in the render loop // get the index of the closest facet to (x, y, z) in the world var i = mesh.getClosestFacetAtCoordinates(x, y, z); var position = mesh.getFacetPosition(i); // returns t