Following Sven's questions in p.general about stl conversion to POV-Ray, 
here is an image of a Mars landscape (obj file converted from stl using 
Meshlab) as seen in Poseray (before exporting to POV-Ray obviously).

-- 
Thomas

Post a reply to this message

Attachments:
Download 'valles marineris.jpg' (71 KB)

Preview of image 'valles marineris.jpg'

Very nice! And a good example of your STL conversion steps.

I would like to imagine that NASA has created a LARGE full 3-D globe of Mars-- a
real-life globe-- carved from the planetary data. That would be something to
see!

Post a reply to this message

"Kenneth" <kdw### [at] gmailcom> wrote:

> I would like to imagine that NASA has created a LARGE full 3-D globe of Mars-- a
> real-life globe-- carved from the planetary data. That would be something to
> see!

Well, I would say that is all of the data is available, and since
planet-building seems to be a long-standing interest of Povvers, that maybe such
a thing would make a nice, long-term group project.

I'm sure we could learn a lot and discover more things about what POV-Ray can &
can't do, and it would make a pretty nice PR piece.
"Hobbyists model ALL of Mars in POV-Ray, a free raytracer with a 25-year
history..."

It would be a really good test bed for view frustum and back-face culling, all
sorts of mesh-related work, and probably media for the atmosphere.

Post a reply to this message

On 18-8-2017 18:59, Bald Eagle wrote:
> "Kenneth" <kdw### [at] gmailcom> wrote:
> 
>> I would like to imagine that NASA has created a LARGE full 3-D globe of Mars-- a
>> real-life globe-- carved from the planetary data. That would be something to
>> see!
> 
> Well, I would say that is all of the data is available, and since
> planet-building seems to be a long-standing interest of Povvers, that maybe such
> a thing would make a nice, long-term group project.
> 
> I'm sure we could learn a lot and discover more things about what POV-Ray can &
> can't do, and it would make a pretty nice PR piece.
> "Hobbyists model ALL of Mars in POV-Ray, a free raytracer with a 25-year
> history..."
> 
> It would be a really good test bed for view frustum and back-face culling, all
> sorts of mesh-related work, and probably media for the atmosphere.
> 
> 

Well, as far as Earth is concerned, Christoph Hormann did this: 
http://earth.imagico.de/view.php?site=oman1

However, the question might be asked about the above: is it really 
worthwhile to model a whole planet as a mesh? From a distance, elevation 
features get lost and can better be replaced by appropriate image_maps 
and bump_maps (NASA provides those too!); for a close view, mesh tiles 
like those NASA produces for Mars are much better suited.

-- 
Thomas

Post a reply to this message

On 19.08.2017 02:47, Thomas de Groot wrote:
> On 18-8-2017 18:59, Bald Eagle wrote:
>> "Kenneth" <kdw### [at] gmailcom> wrote:
>>
>>> I would like to imagine that NASA has created a LARGE full 3-D globe
>>> of Mars-- a
>>> real-life globe-- carved from the planetary data. That would be
>>> something to
>>> see!
>>
>> Well, I would say that is all of the data is available, and since
>> planet-building seems to be a long-standing interest of Povvers, that
>> maybe such
>> a thing would make a nice, long-term group project.
>>
>> I'm sure we could learn a lot and discover more things about what
>> POV-Ray can &
>> can't do, and it would make a pretty nice PR piece.
>> "Hobbyists model ALL of Mars in POV-Ray, a free raytracer with a 25-year

>> history..."
>>
>> It would be a really good test bed for view frustum and back-face
>> culling, all
>> sorts of mesh-related work, and probably media for the atmosphere.
>>
>>
> 
> Well, as far as Earth is concerned, Christoph Hormann did this:
> http://earth.imagico.de/view.php?site=oman1
> 
> However, the question might be asked about the above: is it really
> worthwhile to model a whole planet as a mesh? From a distance, elevation
> features get lost and can better be replaced by appropriate image_maps
> and bump_maps (NASA provides those too!); for a close view, mesh tiles
> like those NASA produces for Mars are much better suited.
> 
Group Project about Mars:
Please refer to the The "POV-Ray Base on Mars" thread. I mentioned my
mars base to become a group project some days ago, and am happy to see
here a good resonace to such proposals.

---
Diese E-Mail wurde von AVG auf Viren geprüft.
http://www.avg.com

Post a reply to this message