Hmm .. I see what you mean, although if you look at the pictures I posted, it really looks like the whole thing is 'glass' not just the 'inside' - but given the degeneracy in closing the 'bottom'  maybe this is fixed.
 
English is my mother tongue, and I'm not sure I explained that. :(
 
I'll take a look at the beta and see how it looks, before we belabor what may be a non issue.
 
        == John ==
"Philippe_Gibone" <Ph.Gibone@wanadoo.fr> wrote in message news:414b139e@news.povray.org. ..
Hello John,
 
I'm not quite sure to understand what you mean (English is not my mother language as you can read), because Domes are Hoolow, as you can see on the little sample below.
For the second point, I must admit that those domes are not Geodesic and the meridians (as on the earth) are closer to each other as you approach the pole.
I send you the beta version by pm (but a further enhanced version is on its way (features asked by other beta-tester...))
 
Philippe