Ever since v21 came out (or so), FX bricks and emitters appear transparent through windows.
This is particularly problematic when you have things that are designed to have windows and then FX bricks behind them (such as the red alert things in Star Trek TOS)
So, I was wondering if it would be feasable for someone to take window brick packs like this:
![](http://i.imgur.com/5aTu6ZJ.png)
...and make versions of the window bricks without the glass panes in them (but still have raycasting and collision where the pane was). If this could be done it would enable us to have window frame bricks that we can actually see stuff through.
If anyone would be interested in doing this (I will owe you one) then please let me know.