[vtkusers] vtkTubeFilter Side/Border Thickness

[Fauze Polpeta]

Hi;

I have a set of 3D Rings that are built from a set of aligned line
segments, which is done by applying the vtkTubeFilter to vtkLineSource
objects. However, when  positioning the camera in the same
direction/orientation of these line segments, the rings become almost
invisible since the side/border thickness is originally minimal.

Is there a way to increase the side/border thickness/width of
vtkTubeFilter objects? Or do I need to change the approach I'm using
to render these rings?

Thanks in advance for any help.

Fauze