Some time ago I posted a small version of this image[1]. This is a bigger 
one, with better lighting (I hope) and radiosity settings... There are 
still some toothbrushes missing in the glass.

[1] 
http://news.povray.org/povray.binaries.images/thread/%3C3fca403d@news.povray.org%3E/

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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I wrote:

> Some time ago I posted a small version of this image[1]. This is a bigger
> one, with better lighting (I hope) and radiosity settings... There are
> still some toothbrushes missing in the glass.

Oops... hit "send" too quickly :)

Here it is:

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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Attachments:
Download 'earth3.jpg' (77 KB)

Preview of image 'earth3.jpg'

Jellby wrote:
> I wrote:
> 
> 
>>Some time ago I posted a small version of this image[1]. This is a bigger
>>one, with better lighting (I hope) and radiosity settings... There are
>>still some toothbrushes missing in the glass.
> 
> 
> Oops... hit "send" too quickly :)
> 
> Here it is:
> 
> 
> 
> ------------------------------------------------------------------------
> 

toothbrush - i assume bristles are cylinders
too new ?
bend the ones at the ends of the brush section along the length of the 
toothbrush, and the ones in between splayed out slightly.
have a look at a worn toothbrush maybe :-)
the reflection of the toothbrush has some of the effect i think you need 
in the brush head itself

is lake victoria? really that big ?
which lake is it then?

stephen


there are too many people posting mirrored spheres, it makes it hard 
thinking of a new variation :-)
someone currently stuck between povray VR and reality

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Jellby wrote:

> I wrote:
> 
> 
>>Some time ago I posted a small version of this image[1]. This is a bigger
>>one, with better lighting (I hope) and radiosity settings... There are
>>still some toothbrushes missing in the glass.
> 
> 
> Oops... hit "send" too quickly :)

Cool! Make sure you brush too hard between the fault lines or you'll get 
receeding plates :-)

-- 
Respectfully,
Dan P
http://<broken link>

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It's a very nice image, but why are your continents about twice as large
as they should be?  It seems you posted a similar globe some time back with
the same thing going on- huge continents.

Cheers!

Chip Shults

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Among other things, stephen parkinson wrote:

> toothbrush - i assume bristles are cylinders
> too new ?
> bend the ones at the ends of the brush section along the length of the
> toothbrush, and the ones in between splayed out slightly.
> have a look at a worn toothbrush maybe :-)

Well, I decided a worn toothbrush would be too hard a model to start with, 
so I jusd made a new, unused toothbrush. The bristles are rounded-tip 
cylinders, but they're not parallel, they're grouped in "locks" and have 
some rotation...

> the reflection of the toothbrush has some of the effect i think you need
> in the brush head itself

What do you mean? Do you think the reflection looks more worn-out than the 
"real" one?

> is lake victoria? really that big ?
> which lake is it then?

Judge yourself: http://www.yourchildlearns.com/africa_map.htm

It's the second largest freshwater lake, so I guess it's *that* big.

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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Among other things, Sir Charles W. Shults III write:

>     It's a very nice image, but why are your continents about twice as
>     large
> as they should be?  It seems you posted a similar globe some time back
> with the same thing going on- huge continents.

I guess it's an effect of perspective and the way we are used to seeing the 
maps...

Here are six different views of the same "ball", which show, I hope, how all 
continents look equally "enlarged" when centered.

I also include a view from much further away (and a tighter angle), which 
should minimize the effect of perspective.

The model is just a spherical map of an image like this one: 
<http://visibleearth.nasa.gov/data/ev116/ev11612_land_ocean_ice_350.jpg>, 
so there should be no weird distortion (I hope)

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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Attachments:
Download 'earthview.jpg' (51 KB) Download 'earthzoom.jpg' (14 KB)

Preview of image 'earthview.jpg'

Preview of image 'earthzoom.jpg'

Point well taken- you are correct, the perspective is the problem.  I
know that spheres can easily throw it off when you get closer than about 10
radii because you do not perceive the diminishing curvature versus radius.
    In a flat image the effect is far more pronounced.

Cheers!

Chip Shults

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