I was thinking about adding a "mirror" option to the glass block, one way or two way. It would be hard to implement, I would beleive, but the possibilities would be endless.
Portal blocks would make for some interesting bunkers... Also griefers could spam random portal blocks everywhere, or I could see myself making a intricate trap with the portal blocks trapping people in spawnjails or something (1way portals)
If you want them to project another view, like in portal/narbacular drop, then that would require you to render the stuff again. It would lag like ****.
I was thinking about adding a "mirror" option to the glass block, one way or two way. It would be hard to implement, I would beleive, but the possibilities would be endless.
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Two words: Portal blocks.
I don't expect that to ever happen, though. XD
Left 4 Minecraft
Hail Stegriff - Hail Zhatt
Most modern games don't even have mirrors in case you haven't noticed.
That's why I said that.
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