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Kari Kivisalo wrote:
> http://luxlab.com/tmp/lego.jpg
>
> The setup is like a miniature outdoors scene. Blue ambient dome, sun
> and a back light. I made it to protest against the overuse of monocrome
> dome lighting, also known as Arnold lighting :)
The sunlight seems a little weak to me. And with all those reflective
surfaces, it might be neat to throw some photons into the mix, but you'd
need to move the sun to see them.
It doesn't really look like an outdoors scene to me. There aren't a lot
of featureless, dull white planes outdoors. ;) Maybe if you put the car
on some sort of table, and scattered some large primitives around the
area where the camera can't see them to break up the radiosity a little
(simulating trees or buildings or something).. but of course that would
be more effort than the Arnold user went to!
Are you using a monochrome sky, or a realistically-colored one?
-Xplo
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3d73afa3@news.povray.org...
> Are you using a monochrome sky, or a realistically-colored one?
Something that has worked very well for me lately was to use panoramas
created with Terragen. I set up a simple TG scene and then run a little
script that generate the environment (front, back, left, right, top). I put
the resulting images on triangles and scale them. Low-res maps do, unless
one is actually shown, so it's usable even with the non-registered version.
Now if TG could output HDRI maps... I've tried to use these maps as pseudo
HDRI ones, by assigning them variable ambient values (based on an underlying
pigment_pattern) but failed to obtain usable results.
G.
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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Gilles Tran wrote:
>
> 3d73afa3@news.povray.org...
>
> > Are you using a monochrome sky, or a realistically-colored one?
As the picture is taken in a photographer's studio I don't see much
use for realistic sky :) I did say miniature, didn't I? It's a simple
setup to display small plastic models in a box cover for example.
It's more interesting to look at than a photo taken inside a white
plastic bag :)
I have noticed too that 24 bit images really can't be used as HDR
images for radiosity lighting.
_____________
Kari Kivisalo
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Kari Kivisalo wrote:
>
> As the picture is taken in a photographer's studio I don't see much
> use for realistic sky :)
Fair enough, but then why have a setup with such strong color bleed? You
would probably be better off with more neutral colors, and not have to
sacrifice the direct lighting whose absence makes Arnold look so dull.
> I did say miniature, didn't I? It's a simple
> setup to display small plastic models in a box cover for example.
I've never seen a picture of anything on a Lego box cover that looked as
bland as this.. and I have seen many, many "outdoors" miniatures shots
that were far more interesting, if not necessarily convincing.
> I have noticed too that 24 bit images really can't be used as HDR
> images for radiosity lighting.
When you really only have 8 bits worth of luminance, and many of those
256 values aren't being used, then obviously what you DO have is going
to be rather granular, at best. Although I'm sure that you (and probably
Gilles) know that already. ;)
-Xplo
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3D739A41.2A430A97@luxlab.com...
>
> http://luxlab.com/tmp/lego.jpg
Here's another try with Lars's model. The rad and focal blur settings are
more or less the
same as the ones used by JRG. The setup is a Terragen-made sky with a coarse
image map for the ground. And no, the visible sun is not in the right
position to provide the shadows but it looked good that way... The textures
are changed too to make them shinier (never played with Lego so I don't know
how real it is,
probably too reflective).
G.
PS. I had first posted this as a reply in newusers and cancelled it
immediately. I hope it worked and apologies if it didn't.
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
>
>
> _____________
> Kari Kivisalo
--
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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Attachments:
Download 'lego_3.jpg' (101 KB)
Preview of image 'lego_3.jpg'
![lego_3.jpg](/povray.binaries.images/attachment/%3C3d74e297%40news.povray.org%3E/lego_3.jpg?preview=1)
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"Gilles Tran" <tra### [at] inapg inra fr> wrote in message
news:3d74e297@news.povray.org...
> "The textures are changed too to make them shinier (never played with Lego
> so I don't know how real it is, probably too reflective).
>
> G.
>
Just right for legos right out of the box before my boys get their paws on
them :)
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Kari Kivisalo <pro### [at] luxlab com> wrote in
news:3D739A41.2A430A97@luxlab.com:
>
> http://luxlab.com/tmp/lego.jpg
>
> Without radiosity and depth of field.
> http://luxlab.com/tmp/lego_norad.jpg
>
> For more info see newusers:
> news://news.povray.org/web.3d7018cb838e641f74c8561c0%40news.povray.org
>
> The setup is like a miniature outdoors scene. Blue ambient dome, sun
> and a back light. I made it to protest against the overuse of monocrome
> dome lighting, also known as Arnold lighting :)
>
>
> _____________
> Kari Kivisalo
Superb, I can just see myself behind the wheel!
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Gilles Tran wrote:
>Here's another try with Lars's model. The rad and focal blur settings are
>more or less the
>same as the ones used by JRG. The setup is a Terragen-made sky with a coarse
>image map for the ground. And no, the visible sun is not in the right
>position to provide the shadows but it looked good that way... The textures
>are changed too to make them shinier (never played with Lego so I don't know
>how real it is, probably too reflective).
Drool, what a desert racer!
The "scale" of the sand matches a toy model very well.
Thanks.
/Lars
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I go to the first link and see two links. Both images are nice. I'm liking the
one on the table top best. I agree, color vs. Arnold adds interest.
--
light_source{0,1}#macro c(J,a)sphere{0,1pigment{rgb z}scale a translate J+O}
#end#macro B(R,V,O)c(0,4)intersection{c(V,R)difference{c(-z*4x+10)c(-z*4.1x+
10)c(0<7.5,45,5>)}}#end B(12,0z*25)B(8y*4<0,12,50>) // Batronyx ^"^
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Xplo Eristotle wrote:
>
> Fair enough, but then why have a setup with such strong color bleed?
There is no obvious color bleed. You must mean the ambient lighting?
> I've never seen a picture of anything on a Lego box cover that looked as
> bland as this..
I have. 'Copy & paste'-link:
http://img.lugnet.com/display.cgi?set/new/upload/695-1-966394063.jpg
_____________
Kari Kivisalo
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