function createNodes(scene, target, nodes) {
        var node;
        var targetNode;
        for (var i = 0; i < nodes.length; i++) {
            node = nodes[i];
            if (target) {
                targetNode = scene.findNode(target);
                if (!targetNode) {
                    continue;
                }
                targetNode.add("node", nodes[i]);
            } else {
                scene.addNode(nodes[i]);
            }
        }
    }
Given an attribute name of the form "alpha.beta" and a value, returns this sort of thing:

{
    "alpha": {
        "beta": value
    }
}