/// <summary>
        /// Load your graphics content.
        /// </summary>
        protected override void LoadContent()
        {
            terrain.Model  = Content.Load <Model>("Terrain/terrain");
            untitled.Model = Content.Load <Model>("Models/untitled");
            floor.Model    = Content.Load <Model>("Models/floor");
            ring.Model     = Content.Load <Model>("Models/ring");

            for (int i = 0; i < 4; i++)
            {
                walls[i].Model = Content.Load <Model>("Models/wall");
            }
            sky = Content.Load <Sky>("sky");
            ship.LoadContent(this.Content);
        }
 /// <summary>
 /// Load your graphics content.
 /// </summary>
 protected override void LoadContent()
 {
     terrain.Model = Content.Load <Model>("Terrain/terrain");
     sky           = Content.Load <Sky>("sky");
     ship.LoadContent(this.Content);
 }