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Ultima Thule (MU69) model with NASA image

Posted: 06.01.2019, 22:44
by BorderShed
The first two images of MU69 that NASA released a few days ago can be found in RAW form at
http://pluto.jhuapl.edu/soc/UltimaThule-Encounter/

http://pluto.jhuapl.edu/soc/UltimaThule-Encounter ... lor_0408622457_0x630_sci_6.jpg
http://pluto.jhuapl.edu/soc/UltimaThule-Encounter ... lor_0408624825_0x630_sci_7.jpg

The first was very long range thus very low res., the second one which was taken about 40minutes later and shows the rotation during that interval.
For interest I have made two versions of a 3d stereoscopic view
for cross-eye and/or parallel-eye viewing, ummv.

So, the main business of this post is to present,
(this is my learning Celestia & Anim8or exersize)
for your amusement,
[insert drum-roll :) ]
my Mk1 experimental Ultima Thule (aka 2014 MU69) model.
I am using its nickname "Ultima Thule" because, until NASA produce a proper map of it there is no point in pretending official names !
To this end my model is a sort of limit_of_knowledge thing, it has real visual from NASA with a uniform rubbishy bit in the unknown areas ( I did it first with black, but that was a bit disconcerting when viewed and rotated in Celestia) .

It is a bit shiny though, have to see what can be done about that in Mk2
UltimaThuleMk1.zip
(133.69 KiB) Downloaded 134 times


UTmk1.jpg


There is a lot of work yet to be done by the XYZ>UV mapping brigade. This version of the flat 2nd image wrapped round the two spheres leaves them so stretched as to be hardly recognizable ! The two prominent craters on the little end are just about visible.

I hope it works for you. Please let me know if you find any faults with it.

UTstereoPairs.png


Added after 47 minutes 45 seconds:
nasa textures dissected
anyone good with UV mapping hereabouts ?
swap you two NASA pics dissected for your use, in return for a dummies tutorial in UV mapping with A8or :biggrin:

These are the two I made (but with a better unknown_badlands_fill-in than earlier shown , I posted the wrong set !! ) that you might like to play with.
whilst we wait for a NASA map.

UltimaA.png
UltimaA.png (11.41 KiB) Viewed 2790 times

ThuleA.png
ThuleA.png (19.6 KiB) Viewed 2790 times

Posted: 07.01.2019, 01:49
by SpaceFanatic64
There have recently been some pictures up close on the surface, but they probably aren't that relevant.

Posted: 07.01.2019, 02:02
by BorderShed
SpaceFanatic64 wrote:There have recently been some pictures up close on the surface, but they probably aren't that relevant.

Link ?

Added after 9 minutes 16 seconds:
Ah ha NASA have been doing stereo pics as well, this one in anaglyph >

http://pluto.jhuapl.edu/Galleries/Featured-Images/pics/UT-approach-3D.jpg

Posted: 07.01.2019, 21:49
by Askaniy
Ok, I will help you with models and textures:

Models and textures of Ultima and Thule

Posted: 07.01.2019, 22:00
by LukeCEL
Askaniy wrote:Ok, I will help you with models and textures:

I'm actually interested in applying textures to models. How do you do it?

Posted: 08.01.2019, 00:04
by BorderShed
Askaniy wrote:Ok, I will help you with models and textures:
thank you, very nice.
We have our name conventions reversed !
your Thule is very like my UltimaA that I posted above, except that I have mine flipped horizontally !
Yours is a good fit and displays the two 'pimples' on the little end very well.
I will re-do mine.

I would also be interested to learn how you distorted the 'flat' NASA image to wrap onto the 3d model, does Blender(?) have such a tool or did you use something else ?

Here are your textures mapped on to my embryo model, it fits very nicely, I guess from the filenames that you used Blender ? (I have not worked out what to do with your other bits yet :) ,, )

AskaniyUT.jpg

Posted: 08.01.2019, 12:52
by Askaniy
LukeCEL wrote:I'm actually interested in applying textures to models. How do you do it?
BorderShed wrote:I would also be interested to learn how you distorted the 'flat' NASA image to wrap onto the 3d model, does Blender(?) have such a tool or did you use something else ?
I am a beginner at this. I used "Texture Paint" mode in Blender with Snowfall's sphere. Before the final photo projection, I deformed (using "Sculpt Mode") the spheres to approximate their shape to the observable. If necessary, I can try to show with screenshots.

BorderShed wrote:We have our name conventions reversed! your Thule is very like my UltimaA that I posted above
Wikipedia:
It is a contact binary 31 km (19 mi) long, composed of two joined bodies 19 km (12 mi) and 14 km (9 mi) across that are nicknamed "Ultima" and "Thule", respectively.

Posted: 08.01.2019, 14:35
by BorderShed
Askaniy wrote:Wikipedia:
It is a contact binary 31 km (19 mi) long, composed of two joined bodies 19 km (12 mi) and 14 km (9 mi) across that are nicknamed "Ultima" and "Thule", respectively.

" We I have our my name conventions reversed " ! :biggrin:
thank you,nice find, I didnt think to look in Wiki :clap:

Posted: 09.01.2019, 02:21
by SpaceFanatic64
Oh no.. I realized that the pictures that I thought were the surface were actually pictures of it from far away. I apologize for this very dumb blunder. :sad:

Posted: 13.11.2019, 19:51
by Joey P.
2014 MU69 now has the official name "Arrokoth." But I like the old name better and it looks much more suitable.