POV-Ray : Newsgroups : povray.binaries.images : Moon Picnic (~295k) Server Time
9 Aug 2024 11:23:17 EDT (-0400)
  Moon Picnic (~295k) (Message 1 to 9 of 9)  
From: Mienai
Subject: Moon Picnic (~295k)
Date: 7 Mar 2005 03:05:02
Message: <web.422c0aa9aa345ab5ce313a1c0@news.povray.org>
Sorry about the file size, but I feel I need it for my main question which
is...
So I've made this picture, I'm not quite happy with it so it's still a WIP
in my mind.  Mainly I don't like the leaves on the tree and the surface on
the moon, any one have any ideas to make the leaves less 'flat' (or more
real) or to add craters to the moon?

Any other feedback would be greatly appreciated...


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Attachments:
Download 'moon_picnic.jpg' (296 KB)

Preview of image 'moon_picnic.jpg'
moon_picnic.jpg


 

From: Mienai
Subject: Re: Moon Picnic (~295k)
Date: 7 Mar 2005 03:25:00
Message: <web.422c0ed5e50cd2fbce313a1c0@news.povray.org>
Sorry, I forgot to mention that the tree is the one of the example ones from
Arbaro (the newest release) and the moons surface is an isosurface.

The pigment I'm using is:
pigment{
 granite
 scale 2
 color_map{
  [0 Firebrick transmit -.25]
  [.5 Coral transmit .25]
  [1 Yellow]
 }
}

and the isosurface is:
#local F_Base=
  function {
    pow(f_noise3d(x/3.157, y/3.157, 120), 1.078)
  }
#local F_Wrinkles=
  function {
    pattern {
      wrinkles
      rotate 29.90
      scale 1.602
    }
  }
#local F_Spotted=
  function {
    pattern {
      spotted
      scale 1/3
      warp { turbulence 0.5 omega 0.55 octaves 9 lambda 2.8 }
      scale 0.413
      rotate <30, 36, 5.458>
      translate 5.458
    }
  }
#local fn_Terrain=
 function {
  F_Base(x, y, 0)*-1.5
  + F_Wrinkles(x, y, z)*-.694
  + F_Spotted(x, y, z)*-0.043
 }
isosurface {
  function {
    f_sphere(x,y,z,3476)
    +fn_Terrain(x, y, z)
  }
  accuracy 0.001
  max_gradient 7.55
  contained_by{sphere{0,3477.5}}
  pigment{White}
}

If that helps at all.


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From: Marc Jacquier
Subject: Re: Moon Picnic (~295k)
Date: 7 Mar 2005 04:16:39
Message: <422c1bf7@news.povray.org>

news:web.422c0aa9aa345ab5ce313a1c0@news.povray.org...
> Sorry about the file size, but I feel I need it for my main question which
> is...
> So I've made this picture, I'm not quite happy with it so it's still a WIP
> in my mind.  Mainly I don't like the leaves on the tree and the surface on
> the moon, any one have any ideas to make the leaves less 'flat' (or more
> real) or to add craters to the moon?
>
> Any other feedback would be greatly appreciated...
>
Hehe I agree deadline is not the end of life for an image

for craters I remember Johannes Dahlstrom's solution
Image here
http://news.povray.org/povray.binaries.images/thread/%3C3dca6f17%40news.povray.org%3E/

scene files here
http://news.povray.org/povray.text.scene-files/thread/%3C3dc77c06%40news.povray.org%3E/?ttop=208560&toff=100

HTH

Marc


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From: Slime
Subject: Re: Moon Picnic (~295k)
Date: 7 Mar 2005 12:15:25
Message: <422c8c2d$1@news.povray.org>
> Any other feedback would be greatly appreciated...


All of the interesting parts are too dark. I suggest changing your light
source's position so that it's much more behind the viewer, lighting up
things in front of us. Then, since the earth will be more fully illuminated
that way, you might also consider putting a dim, bluish light that
looks_like the earth as a backlight for the scene.

 - Slime
 [ http://www.slimeland.com/ ]


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From: Ekki Plicht
Subject: Re: Moon Picnic (~295k)
Date: 7 Mar 2005 16:28:57
Message: <422cc798@news.povray.org>
"Mienai" <Mienai> wrote:

Nice scene, I like it.

I cannot comment on the finer details of the pic, but...

> Any other feedback would be greatly appreciated...

On the moon you won't see any stars, at least as long as you are in the
sunshine like in your scene.

Good luck,
Ekki


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From: dlm
Subject: Re: Moon Picnic (~295k)
Date: 7 Mar 2005 20:43:44
Message: <422d0350$1@news.povray.org>
"Ekki Plicht" <df4### [at] webde> wrote in message 
news:422cc798@news.povray.org...
> "Mienai" <Mienai> wrote:
>
> Nice scene, I like it.
>
> I cannot comment on the finer details of the pic, but...
>
>> Any other feedback would be greatly appreciated...
>
> On the moon you won't see any stars, at least as long as you are in the
> sunshine like in your scene.
>
> Good luck,
> Ekki
>
How so?
There is no atmosphere or scattering medium to occlude the stars,
only the contraction of the iris to damp down incident photon flux.
Of course, in this theatre of the absurd, there are trees on the moon, so 
anything goes.;D
DLM


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From: Ekki Plicht
Subject: Re: Moon Picnic (~295k)
Date: 8 Mar 2005 05:35:48
Message: <422d8004@news.povray.org>
dlm wrote:

> "Ekki Plicht" <df4### [at] webde> wrote in message
> news:422cc798@news.povray.org...
>>> Any other feedback would be greatly appreciated...
>>
>> On the moon you won't see any stars, at least as long as you are in the
>> sunshine like in your scene.

> How so?
> There is no atmosphere or scattering medium to occlude the stars,
> only the contraction of the iris to damp down incident photon flux.

I don't know if it is the contraction of the iris, AFAIK it's a matter of
dynamic range of the eye. The sunshine is simply to bright to see stars.


> Of course, in this theatre of the absurd, there are trees on the moon, so
> anything goes.;D

Of course :-) Nevertheless seeing some stars in the sky distracted me more
than the rest of the scene. 

Cheers,
Ekki


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From: Tim Attwood
Subject: Re: Moon Picnic (~295k)
Date: 9 Mar 2005 00:01:30
Message: <422e832a$1@news.povray.org>
> Of course :-) Nevertheless seeing some stars in the sky distracted me more
> than the rest of the scene.

It's my understanding that the lack of stars in photos from the moon is a 
result of foreground lighting saturation limits and not from the slight 
atmopheric scattering...


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From: Tim Attwood
Subject: Re: Moon Picnic (~295k)
Date: 9 Mar 2005 02:37:50
Message: <422ea7ce$1@news.povray.org>
> Any other feedback would be greatly appreciated...

In proportion to other items I'd judge that your tree is 8-10 feet high... 
leaves on a small tree like that would likely be sparser and larger.  Leaf 
size doesn't tend to vary much with tree size.

The grass is quite large in comparison to the blanket as well.

Heavy objects on a blanket would tend to compress the grass underneath and 
wouldn't be so smooth, a height_field might catch the feeling better.

The horizon is quite stark, you could try focal bluring, or simulate weak 
atmospheric scattering.

The moon surface is excesively ganulated, it could be a tad smoother.

-----

This is a perty image, I kind of like it =)


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