Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
image... comments, suggestion about the snow are welcome !

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LightBeam wrote:

> Just a try with snow for a upcoming "merry-christmas-happy-new-year"
> image... comments, suggestion about the snow are welcome !

Less blue, more sparkly bits (fresh snow has this glistening shine over it)

Other then that, stunning
-- 
Ger

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LightBeam nous apporta ses lumieres en ce 2005-12-08 18:13:
> Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
> image... comments, suggestion about the snow are welcome !
> 
> ------------------------------------------------------------------------
> 
It's to blue.
Otherwhise, it's about the best snow to date.

-- 
Alain
-------------------------------------------------
Feel good?  Don't worry; you'll get over it!

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Wasn't it Alain who wrote:
>LightBeam nous apporta ses lumieres en ce 2005-12-08 18:13:
>> Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
>> image... comments, suggestion about the snow are welcome !
>> 
>> ------------------------------------------------------------------------
>> 
>It's to blue.
>Otherwhise, it's about the best snow to date.

I reckon that it's not blue enough. It's too purple.

Love the sparkly bits. They really make it real.

-- 
Mike Williams
Gentleman of Leisure

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I concur, Mike.  One must realize that when the sky is bright blue, the 
shadowed side of snow is going to be... blue.  So enough with the its 
too blue comments.  http://www.blueridgemuse.com/images/030305snowdrifts.jpg
Too purple is right.  I know some of the stock sky textures have a bit 
too much red in them.

But the snow is amazing nonetheless.  Nice job, Light Beam

Skip

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LightBeam spake:

> Just a try with snow for a upcoming "merry-christmas-happy-new-year"
> image... comments, suggestion about the snow are welcome !

Very realistic to my - well done.

-- 
Stefan Viljoen
Software Support Technician / Programmer
Polar Design Solutions

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LightBeam wrote:
> Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
> image... comments, suggestion about the snow are welcome !
> 
> ------------------------------------------------------------------------
> 
Snow can look some different ways.  I think you've pretty well nailed 
one of the looks.  I think the blue cast is fine btw.

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LightBeam <lig### [at] tiscalifr> wrote:
> Just a try with snow for a upcoming "merry-christmas-happy-new-year"
> image... comments, suggestion about the snow are welcome !

Too blue or not - I for one think this is really good!!

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Skip Talbot wrote:
> I concur, Mike.  One must realize that when the sky is bright blue,
> the shadowed side of snow is going to be... blue.  So enough with the
> its too blue comments. 
> http://www.blueridgemuse.com/images/030305snowdrifts.jpg Too purple
> is right.  I know some of the stock sky textures have a bit too much red 
> in them.

Your eyes will adjust to the "white" of the snow anyway to cancel out any 
blue tone.  There is no point in commenting on the "blueness" of the snow 
until other objects are placed in the scene for comparison.

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Most impressive.

(Too blue? That depends on the lighting conditions, surely...? I've 
certainly seen snow look like this under a blue sky!)

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scott wrote:
> Your eyes will adjust to the "white" of the snow anyway to cancel out any 
> blue tone.  There is no point in commenting on the "blueness" of the snow 
> until other objects are placed in the scene for comparison.

My thunderbird border decoration is gray.
Makes me see the difference ;-).

Of course I agree the snow looks very good.
The little sparkles which depend heavily on light
incidence and camera/eye position can be seen clearly.
These often fail to appear in snow scenes.

Sebastian

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"Skip Talbot" <Ski### [at] aolcom> wrote in message
news:43991a2c$1@news.povray.org...
> I concur, Mike.  One must realize that when the sky is bright blue, the
> shadowed side of snow is going to be... blue.  So enough with the its
> too blue comments.
http://www.blueridgemuse.com/images/030305snowdrifts.jpg
> Too purple is right.  I know some of the stock sky textures have a bit
> too much red in them.
>
> But the snow is amazing nonetheless.  Nice job, Light Beam
>
> Skip

yeah, too purple when comparing it to that image. And too hard to get a
sense of scale too. If this is an area about 4 feet wide, then it looks odd.
If it's a few hundred yards, it looks good.

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THIS PICTURE IS NOT RAY TRACED!  Just posted to keep the blue wars going...

I would consider your snow to be just about perfect and hope you post 
your source so I can steal it :-)

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I think that it is nearly perfect.  "Too blue/Too purple" both depend on how 
other objects appear in comparison, and right now, I don't see any other 
objects.

I also really like how you were able to make the snow look "fluffy".  That's 
not an easy effect, as far as I am aware.  I'd be really interested in 
seeing the snow code.

Something that I do see, however, are tiny black dots in the blue snow.  I'm 
guessing that you're using an iso-surface here?  It may be a max_gradient 
problem.

"LightBeam" <lig### [at] tiscalifr> wrote in message 
news:4398be38@news.povray.org...
> Just a try with snow for a upcoming "merry-christmas-happy-new-year"
> image... comments, suggestion about the snow are welcome !
>

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Wow!  How'd you get the dog's hair to look so realistic?  (Just kidding,
but couldn't resist <g>)

Jim

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scott wrote:
> 
> Your eyes will adjust to the "white" of the snow anyway to cancel out any 
> blue tone.  There is no point in commenting on the "blueness" of the snow 
> until other objects are placed in the scene for comparison.
> 

This is easier to understand, if you'll take a photo of snow to a film
that's ment to be used with electric (bulb) lightning. While balance is
very much meaning thing and human eye is extremely well possible to get
used for different lightning conditions.

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid

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Jim Henderson wrote:
> Wow!  How'd you get the dog's hair to look so realistic?  (Just kidding,
> but couldn't resist <g>)
> 

How can you say that? It's not even near of realistic :o. Check the fur
at the middle of the dog, in the dog's head and at the dog's tail.
There's some mysterious blur effect in the middle of the dog, like it
was out of focal depth (which it can't be; the head and tail of the dog
and the fence at background prove that). ;)

Much focal depth here, thou. It's been bright day so the aperture is
low, maybe somewhere around F/16? Focal lenght hasn't been long either,
I'd guess 28mm.

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid

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very good !

about the blue:
If it's co used by the blue sky, then all other objects should be at least
as blue as the snow. maybe just make the snow white and add a bit of blue
the lighting ?
or just a blue sky and radiosity..

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LightBeam wrote:
> Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
> image... comments, suggestion about the snow are welcome !

Looks like there was some snow, then the kids came out and played, and 
then another fresh inch of really fluffy stuff fell on it.  Right now 
it's late in the afternoon and there is not a cloud in the sky.  It's 
also well below the freezing point.

On the drawback side, I do detect some faceting along the edges of some 
of the shadows.

Regards,
John
(who grew up where it snows in just about every way, and wishes he were 
back)

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On Fri, 09 Dec 2005 23:14:37 +0200, Eero Ahonen wrote:

> Jim Henderson wrote:
>> Wow!  How'd you get the dog's hair to look so realistic?  (Just kidding,
>> but couldn't resist <g>)
>> 
>> 
> How can you say that? It's not even near of realistic :o. 

Ah, well, my left eye is slightly out of focus, so maybe that had
something to do with it.  That said, though, even at the middle of
the dog, the reason that the fur looks a little odd is because of a shadow
coming from an object that's out of frame.  That's hyper-realism, to
place something out of frame so it casts a shadow like that while being
trace. I still say "well done, and can we see the souce?". <g>

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LightBeam wrote:
> Just a try with snow for a upcoming "merry-christmas-happy-new-year"
> image... comments, suggestion about the snow are welcome !

That's great! It gets the fresh-snow sparkle down wonderfully. 
Well done, LightBeam!
 
Mike
--
http://povray.tashcorp.net

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"Spock" <Spo### [at] nospamcom> wrote in message news:4399e0be@news.povray.org...
> THIS PICTURE IS NOT RAY TRACED!  Just posted to keep the blue wars 
> going...

    Liar! That's pov. Gimme the code... now.

      *ALL* of it.

        :op

      ~Steve~

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Thank you all ;-)
I promise that I will release the snow code soon when my scene will be 
finished.

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It looks absolutely real to me...the "too blue" comments are directed at the
fact that you almost never see a clear, azure, summery sky over
fresh-fallen snow, and hence by making your sky-sphere overcast you'll have
less blue for the snow to reflect.

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LightBeam wrote:
> Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
> image... comments, suggestion about the snow are welcome !

Some of these people don't know what snow looks like, I think.. the 
lighting is fine (maybe a little purplish but I won't complain). The 
little sparkles look great.

Only complaint I'd make is the shape of the snow. It LOOKS fresh, but 
fresh snow is usually smoother than this, unless the surface underneath 
is seriously torn up.

Granted, someone suggested that kids had played in it and then a fresh 
layer covered their tracks, and that's a plausible explanation.

-Xplo

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Xplo Eristotle wrote:
> LightBeam wrote:
> 
>> Just a try with snow for a upcoming "merry-christmas-happy-new-year" 
>> image... comments, suggestion about the snow are welcome !
> 
> 
> Some of these people don't know what snow looks like, I think.. the 
> lighting is fine (maybe a little purplish but I won't complain). The 
> little sparkles look great.
> 
> Only complaint I'd make is the shape of the snow. It LOOKS fresh, but 
> fresh snow is usually smoother than this, unless the surface underneath 
> is seriously torn up.
> 
> Granted, someone suggested that kids had played in it and then a fresh 
> layer covered their tracks, and that's a plausible explanation.
> 
> -Xplo
The snow could be covering many kinds of uneven surface especially grass 
or clumped grass.  This snow has been exposed to a strong sun during the 
afternoon such that the uppermost of the layer has melted slightly 
leaving a crystaline crust.  That would also account for the slightly 
sunk in look that the smaller scale lacework of bumps gives to it.

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I've been making some snow too, but my snow is just so-so... :-P

Had to go back and tweak mine, to try and make it look as good as yours.
Those sparkles are NICE!

Ken

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