code: function(obj_or_mesh,threeMaterials){
              var toxiTriangleMesh;
              if(arguments.length == 1){ //it needs to be an param object
                  toxiTriangleMesh = obj_or_mesh.geometry;
                  threeMaterials = obj_or_mesh.materials;
              } else {
                  toxiTriangleMesh = obj_or_mesh;
              }
              var threeMesh = this.createMesh(toxiTriangleMesh,threeMaterials);
              this.scene.add(threeMesh);
              return threeMesh;
          }
docs: add a toxiclibs.js mesh to the three.js scene
  @param {Object|toxi.geom.mesh.TriangleMesh} obj_or_mesh either an options object or
  the toxiclibsjs mesh
  --
  @param {toxi.geom.mesh.Trianglemesh} [obj_or_mesh.geometry] the mesh in the options object
  @param {THREE.Material} [obj_or_mesh.material] the three.js material for the mesh
  @param {boolean} [obj_or_mesh.holdInDictionary] should ToxiclibsSupport hold a reference?
  --
  @param {THREE.Material} [threeMaterials] the three.js material for the mesh