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Op 13/09/2021 om 01:14 schreef Samuel B.:
> "Samuel B." <stb### [at] hotmail com> wrote:
>> Just testing out some moon maps.
>
> Final render in this series. Zoom in to see all the details.
>
> This version uses the medium-resolution color map 'lroc_color_poles_4k.tif', and
> the highest resolution displacement map available: 'ldem_64_uint'. As a tiff.
> that sucker is over 500mb in size, but only about 350mb as a png. It takes
> several seconds for POV-Ray to parse it, but that's not so bad. (I converted the
> map from tiff to png using Ive's nifty image program called IC. Thank you Ive
> for the program, and thank you Thomas for the recommendation :))
>
> The scene still uses radiosity and a reflecting plane, but I added ground fog
> this time around. The sun's position is not realistic.
>
Nice image! The details are very clear.
> Sam
>
> P.S. If you look closely, you'll find some interesting things... You can see
> what appears to be scratches in the moon's surface. Were these caused by
> asteroids that hit the moon at a glancing angle? You'll also see what appears to
> be drifts of dust forming sinuous ridges. Were the asteroid impacts powerful
> enough to vaporize minerals and cause temporary gaseous wind? Were these ridges
> perhaps formed in part by electrostatic forces? Or were they simply the result
> of traveling dust that happened to settle just right? I'd be interested in your
> thoughts!
>
The short answer, for both features: Lunar Rills --> either collapsed or
not, lava tunnels.
--
Thomas
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