Section: Visualization Toolkit Rendering Classes
This pass expects an initialized depth buffer and color buffer. Initialized buffers means they have been cleared with farest z-value and background color/gradient/transparent color.
To create an instance of class vtkOverlayPass, simply invoke its constructor as follows
obj = vtkOverlayPass
obj
is an instance of the vtkOverlayPass class.
string = obj.GetClassName ()
int = obj.IsA (string name)
vtkOverlayPass = obj.NewInstance ()
vtkOverlayPass = obj.SafeDownCast (vtkObject o)