Hello !
This is my first post here...
I know it's not exactly the traditionnal reflexive sphere on a checkered 
plane, but...

I still have to work on the textures, for example draw scales on the 
rings. But I wanted to fix the overall look first.

Of course, suggestions and comments are welcome.

-- 
Vincent Le Chevalier

<=========|=D

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"Vincent LE CHEVALIER" <lec### [at] ctiecpfr> wrote in message
news:402b8671@news.povray.org...
> Hello !
> This is my first post here...

Always good to see new people posting. Welcome to the POV newsgroups.

> I still have to work on the textures, for example draw scales on the
> rings. But I wanted to fix the overall look first.

While you are at it, you might want to try lowering the 'diffuse' of the
texture, something like diffuse 0.1; possibly ambient down to zero too. Are
you using variable reflection? The armillary could be much more reflective
than is now, it has more of a painted gold appearance instead of a smooth
shiny metal like I'd expect to see. Using 'metallic' reflection colors too,
if not already. I'm guessing this has metallic properties such as
'brilliance' already but difficult to know without actually reading the
texture script itself.

Suggestion for the stand: you could try 'blob' for the beaded rings (unless
it already is and I'm not seeing it as such). That way it would flow
together. In fact, the base could be done using a blob with negative
components to create the indentations. Although I like the scalloping as-is.

Bob H.

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"Hughes, B." <omn### [at] charternet> wrote in message
news:402bcb0f@news.povray.org...
> "Vincent LE CHEVALIER" <lec### [at] ctiecpfr> wrote in message
> news:402b8671@news.povray.org...
> > Hello !
> > This is my first post here...
>
> Always good to see new people posting. Welcome to the POV newsgroups.
>
> > I still have to work on the textures, for example draw scales on the
> > rings. But I wanted to fix the overall look first.

Very neat! Another trick is to add a texture to the rings so that you get
some variance in the surface. Real objects aren't perfect and the eye can
see them right away. For example,

pigment
{
   wrinkles
   color_map
  {
    [0 rgb <1, 1, 0.8> ]
    [1 rgb <0.8, 0.8, 0 .6> ]
  }
}

Or something like that -- really subtle, yet it makes it more realistic.
(Wrinkles is a personal favorite -- salt to taste).

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Thanks for the suggestions !
  Here is a new version, looking more metallic. I also added a slight 
normal perturbation to disturb the reflections a little, and I improved 
(in my view :-) ) the lighting.
  I think I'll keep the non-blob stand. I like its sharp look, though 
it's not what I originally intended to do...

Regards

-- 
Vincent Le Chevalier

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"Vincent LE CHEVALIER" <lec### [at] ctiecpfr> wrote in message
news:402e1b01@news.povray.org...
>   Thanks for the suggestions !
>   Here is a new version, looking more metallic. I also added a slight
> normal perturbation to disturb the reflections a little, and I improved
> (in my view :-) ) the lighting.
>   I think I'll keep the non-blob stand. I like its sharp look, though
> it's not what I originally intended to do...

By Jove, I think he's got it! Beautiful. I like these astronomical devices.
This would probably be called demonstrational armillary, since the
observational ones tend to have fewer rings and would be larger.

-- 
Bob H.
http://www.3digitaleyes.com

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"Hughes, B." <omn### [at] charternet> wrote in message
news:402e2c61$1@news.povray.org...
> "Vincent LE CHEVALIER" <lec### [at] ctiecpfr> wrote in message
> news:402e1b01@news.povray.org...
> >   Thanks for the suggestions !
> >   Here is a new version, looking more metallic. I also added a slight
> > normal perturbation to disturb the reflections a little, and I improved
> > (in my view :-) ) the lighting.
> >   I think I'll keep the non-blob stand. I like its sharp look, though
> > it's not what I originally intended to do...

Absolutely beautiful!!!

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Hughes, B. wrote:
> "Vincent LE CHEVALIER" <lec### [at] ctiecpfr> wrote in message
> news:402e1b01@news.povray.org...
> 
>>  Thanks for the suggestions !
>>  Here is a new version, looking more metallic. I also added a slight
>>normal perturbation to disturb the reflections a little, and I improved
>>(in my view :-) ) the lighting.
>>  I think I'll keep the non-blob stand. I like its sharp look, though
>>it's not what I originally intended to do...
> 
> 
> By Jove, I think he's got it! Beautiful. I like these astronomical devices.
> This would probably be called demonstrational armillary, since the
> observational ones tend to have fewer rings and would be larger.
> 
Indeed, it would be truely difficult to make precise observations with 
this kind of device. Actually, there was an other, simpler instrument 
called "astronomical ring" that could serve such purposes. See 
http://www.galerie-kugel.com/expo_en.htm for some beautiful pictures of 
those instruments. I saw the exposition, and it was amazing...

Thanks again for the comments

-- 
Vincent Le Chevalier

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"Vincent LE CHEVALIER" <lec### [at] ctiecpfr> wrote in message
news:402f2ca1@news.povray.org...
> Hughes, B. wrote:
> > This would probably be called demonstrational armillary, since the
> > observational ones tend to have fewer rings and would be larger.
> >
> Indeed, it would be truely difficult to make precise observations with
> this kind of device. Actually, there was an other, simpler instrument
> called "astronomical ring" that could serve such purposes. See
> http://www.galerie-kugel.com/expo_en.htm for some beautiful pictures of
> those instruments. I saw the exposition, and it was amazing...

That must've been great to see alright. I like the glass celestial sphere
with orrery inside, there in the mechanical section. I'm wasn't aware of
such diversity in these kinds of instruments. The astronomical rings seem
akin to sextants. Thanks for showing the site with those.

Bob H.

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