/**
  * @brief Create a screen fixed 3D Model, meaning it is always stuck to the devices screen
  * @param String $id Id of the AREL Object
  * @param String $model Path to the model of the Object or to the zip package holding all the information
  * @param String $texture Path to the texture of the Object (jpg or png file) 
  * @param int $screenAnchor A constant defining the screen anchor @see ArelAnchor.
  * @param Array $scale An array providing scale values along three axis (x, y, z)
  * @param ArelRotation $rotation Provides the rotation information. Can be defined as euler (rad / deg), quaternion, axisangle or matrix
  * @return ArelObjectModel3D The object created
  */
 public static function createScreenFixedModel3D($id, $model, $texture, $screenAnchor, $scale, $rotation)
 {
     $obj = new ArelObjectModel3D($id);
     $obj->setModel($model);
     $obj->setTexture($texture);
     $obj->setScale($scale);
     $obj->setRotation($rotation);
     $obj->setScreenAnchor($screenAnchor);
     return $obj;
 }
 /**
  * Create an 3D Model based on model and texture (can also only have modelPath if the model is a zipped obj or md2 including the texture) 
  * @param String $_id object id
  * @param String $_modelPath path to the model's texture
  * @param String $_texturePath path to the model's texture
  * @static
  */
 public static function create($_id, $_modelPath, $_texturePath)
 {
     $obj = new ArelObjectModel3D($_id);
     $obj->setModel($_modelPath);
     $obj->setTexture($_texturePath);
     return $obj;
 }