Associated image is at p.b.i., Atmosphere vs. Media post.
This pov script uses a 'bicubic_patch' model of the "grating" donated by
Mike Hough. A DXF model was tried with default conversion settings and
was too rounded off and instead of go back and try another conversion
went with this one.
The script is easily switchable from version 3.0* to 3.1*, not via a
#version directive though since the actual program versions need to be
used.
This has yet to be made more equalized in "air" brightness but shouldn't
be much a problem to compensate for by changing the rgb color values
(scattering).

Bob

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