getNodeType() {

		const scope = this.scope;

		if ( scope === Object3DNode.WORLD_MATRIX ) {

			return 'mat4';

		} else if ( scope === Object3DNode.POSITION || scope === Object3DNode.VIEW_POSITION || scope === Object3DNode.DIRECTION || scope === Object3DNode.SCALE ) {

			return 'vec3';

		} else if ( scope === Object3DNode.RADIUS ) {

			return 'float';

		}

	}
Overwritten since the node type is inferred from the scope.

@return {string} The node type.