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Mosfet
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03 Jan 2018 16:58

I searched for a while a nice texture for P67/Churyumov-Gerasimenko, but despite a lot of imaging materials, I'm afraid a lot of it would be more artistic work.
Wonderful news the 3-axes oblateness and dimensions. Quite a number of asteroid shapes will benefit from these parameters!
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Julian
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03 Jan 2018 17:15

Great to hear about triaxial ellipsoids, SpaceEngineer! I hope that in the future you'll make it possible to add procedural details and terrain to 3D polygon models.
 
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tRetro-Visor
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03 Jan 2018 17:52

SpaceEngineer wrote:

That's interesting. I thought about this once I managed to import 3D models made by myself, but I lacked said 3D models. HERE is a list of 3D models, where I got a High Poly 67P/Churyumov–Gerasimenko model and ported it in
Image
Vesta, Eros and others are also there in case you need them
 
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04 Jan 2018 03:09

tRetro-Visor wrote:
Source of the post HERE is a list of 3D models, where I got a High Poly 67P/Churyumov–Gerasimenko model and ported it in

Thanks, this is interesting source.
 
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FastFourierTransform
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04 Jan 2018 03:36

SpaceEngineer:

This is [url=https://en.wikipedia.org/wiki/67P/Churyumov–Gerasimenko]67P / Churyumov–Gerasimenko[/url] comet. Model is not very good, and also has no textures. I have to find a better one.

Image

The best current model for 67P / Churyumov–Gerasimenko is the one of Mattias Malmer. I've never tried to add it because I lack the knowledge but you should try.

Here you can download the model and some beautifull textures.

Image

Here he did a Virtual Reality scenario with the model. You should check it.

His model is so accurate and sharp that the European Space Agency itself used it in their farewell video for Rosetta (instead of their own model).

Check also his youtube channel if you have the urgency to see the model floating as it would be in SE if added. :)

 
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04 Jan 2018 04:20

Unfortunately there is no self-shadowing for ships (so also for asteroids?)  :(
But it is a great 3D model though!
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04 Jan 2018 09:53

Excellent progress as usual, Valdimir. Keep up the good work.  :)
 
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Fireinthehole
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04 Jan 2018 10:42

Great news to see triaxial shpreoids in SE :)
 
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04 Jan 2018 11:31

FastFourierTransform wrote:
Source of the post The best current model for 67P / Churyumov–Gerasimenko is the one of Mattias Malmer.

Great model, thanks!

scr01150.jpg


scr01151.jpg


Odd spikes at its "neck":

scr01152.jpg


Some artefacts are visible - this is oddly displaced triangles. They exist in original model.
scr01153.jpg


The model is quite large - 339 MB after converting from obj to sm. I added support of a more compact vertex format (half float and short/byte), so now sm files could be smaller:

float (origianl file) - 339 MB
half float - 182 MB
short/byte - 130 MB

It is probably still too large to be included as default in SE release (80 MB in a compressed pak file). There will be many other models, however, they probably will not be so detailed. So maybe it worth it?
 
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04 Jan 2018 11:44

Looks realistic!
 
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Mosfet
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04 Jan 2018 14:43

It seems like part of those spikes could stem from raw data. I wonder what would be the effect of textures on a somewhat normalized model. Surely it could result in a smaller pak file. As you said, other shapes are less detailed, but with an sm file less than half of the actual format, maybe...
It could make quite an impression as addendum. OK we should absolutely place Philae lander right where they found it....
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04 Jan 2018 15:07

Downloaded latest Mattias Malmer's model, it is even bigger: 570 MB! In a short/byte format it is still 218 Mb. Tried to optimize mesh in 3ds max, but it makes normals non-smooth.

Updated ship shader so it now support Hapke BRDF (the "opposition effect" on a dusty surfaces). Difference is quite significant!

Lambert lighting:
scr01168.jpg


Hapke lighting (Moon-style):
scr01169.jpg


Enhanced Hapke effect:
scr01170.jpg


This effect is needed only for planets/asteroids. But maybe it could be useful for ships and bases, to render surfaces covered with dust.
 
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SpaceEngineer
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04 Jan 2018 17:11

Attempt to apply detail textures (ship models supports this, do you use them in your mods?)

scr01171.jpg


Obviously, asteroids must use a system, similar to the new terrain texturing system. It will make it more robust and allow to fix tiling pattern. Maybe I will unify shaders somehow.

Philae rescue operation :)

scr01173.jpg
 
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Mosfet
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04 Jan 2018 17:48

Started recently with detail texture, depending on the material you get definitely some points toward realism. As a matter of fact I think we could change the default detail noise for some modules for the ship editor.
I must say I'm a bit worried thinking about the performance I should expect with my soon-to-be low-end GPU when we talk about adding models with hundreds of megabytes of data to the field of view.
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Salvo
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04 Jan 2018 23:38

SpaceEngineer wrote:
Philae rescue operation :)

Incredible! I love it.

It seems quite dark though  :)
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