im very new to POV-Ray and I have an assignment which is due next month.

I want to make an image of a photo something like this,
http://www.dskendall.com/images/199812.jpg

Can anyone help me get started? Is it a difficult task to do?

Thanks!

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k1s3k1 wrote:

>im very new to POV-Ray and I have an assignment which is due next month.
>
>I want to make an image of a photo something like this,
>http://www.dskendall.com/images/199812.jpg
>
>Can anyone help me get started? Is it a difficult task to do?
>
>Thanks!
>
>
>  
>

Well, it looks to me as though there are three main parts to the image:  
the sky, the mountains, and the shrub-covered plain.  I would recommend 
starting with a "quick and dirty" approach to each part and then adding 
detail and realism as you go along (and as you learn more about using POV).

For example, you might start by making a sky_sphere that's about the 
same color as the sky in the image. Then you could add a tan-colored 
plane and make "placeholders" for the mountains (probably unevenly 
scaled spheres to start with).  Get everything laid out so that the 
objects and camera are positioned about the way you want them, THEN 
start working on detail.  One advantage to this type of "top down" 
approach is that, when the deadline arrives, you've got, at the very 
least, a "sort of finished" project, instead of just bits and pieces. ;)

After you've got the scene laid out, you'll probably want to study up on 
the height_field object for making the mountains.  There are include 
files (and also third-party programs) available that are very useful for 
making shrubbery, and also info on several ways of making a realistic sky.

Hope this helps a bit.

--Sherry Shaw

-- 
#macro T(E,N)sphere{x,.4rotate z*E*60translate y*N pigment{wrinkles scale
.3}finish{ambient 1}}#end#local I=0;#while(I<5)T(I,1)T(1-I,-1)#local I=I+
1;#end camera{location-5*z}plane{z,37 pigment{granite color_map{[.7rgb 0]
[1rgb 1]}}finish{ambient 2}}//                                   TenMoons

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Sherry Shaw <tenmoonsPutAtCharacterHereaol-dot-com> wrote:
>
> For example, you might start by making a sky_sphere that's about the
> same color as the sky in the image. Then you could add a tan-colored
> plane and make "placeholders" for the mountains (probably unevenly
> scaled spheres to start with).  Get everything laid out so that the
> objects and camera are positioned about the way you want them, THEN
> start working on detail.  One advantage to this type of "top down"
> approach is that, when the deadline arrives, you've got, at the very
> least, a "sort of finished" project, instead of just bits and pieces. ;)
>
> After you've got the scene laid out, you'll probably want to study up on
> the height_field object for making the mountains.  There are include
> files (and also third-party programs) available that are very useful for
> making shrubbery, and also info on several ways of making a realistic sky.

Thanks for helping me, but I dont understand a few stuff :(

What do you mean by "placeholders" ? Is it making the spheres and shaping
them to mountains later on??

And what are height_field object ?

Post a reply to this message

k1s3k1 wrote:
> Thanks for helping me, but I dont understand a few stuff :(
> 
> What do you mean by "placeholders" ? Is it making the spheres and shaping
> them to mountains later on??
> 
> And what are height_field object ?

My advice is to read the Povray intro here:
http://povray.org/documentation/view/3.6.1/13/
and here:
http://povray.org/documentation/view/3.6.1/58/

(The height field is explained in "Advanced Features", 1.3.3.2.)

-- 
William Tracy
afi### [at] gmailcom wtr### [at] calpolyedu

You know you've been raytracing too long when you see something in the 
real world and you think, "Hey! How did they get that effect?"

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web.46c3175d4683e64799fead9e0@news.povray.org...

> Thanks for helping me, but I dont understand a few stuff :(
Don't worry, you'll get help here :-)
>
> What do you mean by "placeholders" ? Is it making the spheres and shaping
> them to mountains later on??
Nope placeholders are object meant to be replaced later by more accurate 
objects.
In this case, the rocks can be very roughly faked by unevenly scaled 
spheres, then by a height_field.
Now the difficulty of making an image looking like the photo depends on how 
accurate and realistic you want it to be.

Marc

Post a reply to this message

"k1s3k1" <k1s### [at] gmailcom> wrote:
> Sherry Shaw <tenmoonsPutAtCharacterHereaol-dot-com> wrote:
> >
> > For example, you might start by making a sky_sphere that's about the
> > same color as the sky in the image. Then you could add a tan-colored
> > plane and make "placeholders" for the mountains (probably unevenly
> > scaled spheres to start with).  Get everything laid out so that the
> > objects and camera are positioned about the way you want them, THEN
> > start working on detail.  One advantage to this type of "top down"
> > approach is that, when the deadline arrives, you've got, at the very
> > least, a "sort of finished" project, instead of just bits and pieces. ;)
> >
> > After you've got the scene laid out, you'll probably want to study up on
> > the height_field object for making the mountains.  There are include
> > files (and also third-party programs) available that are very useful for
> > making shrubbery, and also info on several ways of making a realistic sky.
>
> Thanks for helping me, but I dont understand a few stuff :(
>
> What do you mean by "placeholders" ? Is it making the spheres and shaping
> them to mountains later on??
>
> And what are height_field object ?

Hey k1s3k1-

What Sherry is suggesting is that you cant start from the roughest, most
"approximate" quality of this image and improve the realism from there.

So, for instance, the most basic way of drawing this scene is to use a blue
sky_sphere, a tan plane for the ground, and brown or red spheres for the
mountains. These "placeholders" can be used to adjust the position of the
camera and to make sure that you have these major elements arranges as you
want them. Then you can work to improve each element, and replace the
"placeholders" with the finished objects.

Height_fields are explained in the tutorial section 3.3.2. As a new user
myself (I've only been using POV for about 3 months) I would highly
recommend working through the tutorial document. It gives a good
introduction to the capabilities of POV and how to use them to produce
various things.

Good luck, hope that helped!

-OpalPlanet

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so far, this is what i have made
http://img338.imageshack.us/img338/6116/testzm4.png

is that okay for the sky and plain?? or is it wrong??
please give me suggestions in order to improve on it :D

Post a reply to this message

"k1s3k1" <k1s### [at] gmailcom> wrote:
> so far, this is what i have made
> http://img338.imageshack.us/img338/6116/testzm4.png
>
> is that okay for the sky and plain?? or is it wrong??
> please give me suggestions in order to improve on it :D

Looks good to me! The ground seems to be a little too orange... maybe more
brown?
-OpPl

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OpalPlanet <ecs### [at] msncom> wrote:
> Looks good to me! The ground seems to be a little too orange... maybe more
> brown?

  It's not like orange ground doesn't exist...
http://www1.istockphoto.com/file_thumbview_approve/2265232/2/istockphoto_2265232_vineyard_rows_orange_ground_blue_skye.jpg

:P

-- 
                                                          - Warp

Post a reply to this message

Warp <war### [at] tagpovrayorg> wrote:
> OpalPlanet <ecs### [at] msncom> wrote:
> > Looks good to me! The ground seems to be a little too orange... maybe more
> > brown?
>
>   It's not like orange ground doesn't exist...
>
http://www1.istockphoto.com/file_thumbview_approve/2265232/2/istockphoto_2265232_vineyard_rows_orange_ground_blue_sky
e.jpg
>
> :P
>
> --
>                                                           - Warp

True, I was just comparing it with the image that k1s3k1 posted to begin
with... :-)


-OpPl

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