[esp-r] Re: Connecting two zones with a stairwell

[Oliver Bucks]

Andrew,

You may not use air, but you can create something which acts pretty much like air.

Copy a transparent material (like glass) and change its paramters in order to make it as transparent with regards to heat, light and air as possible. The transparency to air is called the input called permeability (I'm pretty sure)....

Then, air, heat and light will travel almost unhindered from one zone to another.

Olli
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