Adding text when drawing a TGeoVolume

I have a TGeoManager class, where I define a mother geometry and I can add 3D-shapes to the mother volume.

Then I do GetTopVolume->Draw( “ogl” ); to paint

However, I would like to be able to add text labels in given XYZ-coordinates inside this volume.

Can I add a text object to the volume? There is an easy way to do this or an example? I did not find any text related example in geometry tutorials.


Ok, I found TEveManager and related methods could do the job