Thermal radiation heat transfer between surfaces

Dear SciPy community,

I'm a bit stuck trying to simulate heat transfer by radiation only
(elements in a vacuum chamber). The problem involves calculating the so
called view factor (well explained in section 4 of
http://mafija.fmf.uni-lj.si/seminar/files/2015_2016/Thermal_radiation_heat_transfer_between_surfaces_Luka_Klobucar.pdf),
which is a double surface integral. I was hoping to find some ready Python
code, but I failed. Maybe someone is aware of either heat transfer
calculation libraries in Python or just 3D view factor calculations? If
not, maybe some hints on numerical calculations of surface integrals in
Python? I've found view3d
<https://sourceforge.net/p/view3d/code/HEAD/tree/trunk/README.txt#l48>, but
the code is rather outdated and I'm struggling to compile it (I tried
Windows 10, Archinux, Ubuntu, but I'm an amateur in software building).

Best,

Pawel

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