How do I map an image onto an object so that it only appears once and is not
visible on the other side of the object.
e.g. for a face.

Am probably missing the point somewhere. All help appreciated.
Bob Frew

Post a reply to this message

> How do I map an image onto an object so that it only appears once and
is not
> visible on the other side of the object.
> e.g. for a face.

With a box you could do it like this: (beware, lousy ASCII art ahead)

[]|

where the [] is the box / orignial object, and the | is a thin box which
you apply the image map to.

You can also split the object in two and apply the image map to only one
part of the object.


-Peter

Post a reply to this message

Thanks for that Peter.
I knew about the splitting in two method, but thought maybe there was a
better way. e.g. just adding a parameter to tell it to stop at first
surface.
Bob
"Peter Hertel" <peter@hertel**NOSPAM**.no> wrote in message
news:3edd0dc8@news.povray.org...
> > How do I map an image onto an object so that it only appears once and
> is not
> > visible on the other side of the object.
> > e.g. for a face.
>
> With a box you could do it like this: (beware, lousy ASCII art ahead)
>
> []|
>
> where the [] is the box / orignial object, and the | is a thin box which
> you apply the image map to.
>
> You can also split the object in two and apply the image map to only one
> part of the object.
>
>
> -Peter
>
>
>
>

Post a reply to this message

In article <3edcbc0d$1@news.povray.org>,
 "Bob Frew" <rob### [at] ntlworldcom> wrote:

> How do I map an image onto an object so that it only appears once and is not
> visible on the other side of the object.

You could use the object pattern:

texture {
    object {ImageAreaObject MainTexture, ImageTexture}
}
Where ImageAreaObject is an object that contains the area you want the 
image map on, ImageTexture is the image_map texture itself, and 
MainTexture is whatever you want the rest of the texture to be.


> e.g. for a face.

Ah...for that, you probably want UV mapping. A simple explanation is 
that it is a way to wrap the texture onto the surface of the object.
http://povray.org/documentation/view/191/

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

Post a reply to this message