The following image demonstrates the GlassCylinderBar2DModel.

To take effect, an instance of the GlassCylinderBar2DModel class must be assigned to the BarSeries2D.Model property.
System.Object
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
ChartDependencyObject
DevExpress.Xpf.Charts.PointModel
Bar2DModel
PredefinedBar2DModel
GlassCylinderBar2DModel