Glass blocks do this just fine, and if panes are now acting like blocks, I don’t see this being a huge problem to fix, but what do I know?
I’ll tag @james again anyway, and I’m unsure who deals with this exactly, but I’ll take a stab at @lucadeltodecso;
How it should look;
How it looks currently;
Glass panes used as a ceiling are useless against the super snow… shop has a fully covered glass pane ceiling with no holes yet every shop stand is basically useless to see what color the item is without turning builder mode on to hide the snow…
The real countdown… until the super snow goes away… 
And I haven’t found the will the farm for more red candy canes yet because I’m still depressed by the quantity required. I’d have to go on 2 more group-snowball-hunts sessions to get enough to make one mass craft. 
Between that and the Super snow, kinda want to hibernate for the next 4 days.
I solved this by oldschool way.
Double layered wall.
First layer trellis then glass block
thats the spirit 
Ok i run around in build mode most of the time anyway. But i have to say snow and rain can be stopped with a full block or two “half slaps” making a full block (basically two blocks back to back chiseled on the outsides).
It seems when 1 block is chiseled to much it becomes “invisible” or in other words for the weather effects a air block.
I wish that worked…
There’s no snow to be found on any surface inside, but the wind blows the snow through my workshop as if I left all the windows open!
Even on a ‘farm’ I finally finished today, metal doors, a portal and the rest are unchiseled full blocks, bricks and the old glass fully enclosed and I still see snow blowing thru the building…
Haven’t noticed on antarVI 
Funny since it was on Antar…
I finished two mats farms today, well three, but two were on Antar and it happened there…
Ok still like i said i am mostly walking around with plot info on. but when it happens to snow i only see the effect in central Anterra because of the windows on top of central (they are holey ).
Don’t think I have ever been more excited for an event to end…
you mean the fact that you can still see that post?
in general, the weather needs to be reworked
boundless is the game where the weather impacts me the most
me its 365days rain its absurd for me
Easy, inside is under a layer of block that is not sky. Have one block above on the (x,y,z) everything below that block (all alt below a solid block = inside).
fun fact my skyshield worked on the old Houchus base, it was only one block layer on a much higher alt than the ground, no snow no rain nothing on the ground layer (around 50 blocks below). Still a bit of fog and drips if I remember correctly.
To be honest i don’t like that question that mean for me they don’t care about inside outside 
So standing under a tree is inside?
I’ll cut to the answer - determining that a player or location is inside is a computationally expensive operation. It’s also heuristically limited. Maybe something best solved with machine learning. Time for a Boundless trained captcha?
