Computer Graphics with Photoshop - How to save a picture as TGA (Targa) File Format On Photoshop CS2?

Author

How to save a picture as TGA (Targa) File Format On Photoshop CS2?

omrikou@gmail.com

2007-03-02, 6:14 pm

I have been edited a picture as TGA format and I can't save it as TGA
file again, can someone help me?

Thanks

tacit

2007-03-02, 6:14 pm

In article <1172852182.799366.129950@n33g2000cwc.googlegroups.com>,
omrikou@XXXXXXXXXX wrote:

> I have been edited a picture as TGA format and I can't save it as TGA
> file again, can someone help me?

How have you edited it? Have you added layers or converted it to 16 bits?

--
Photography, kink, polyamory, shareware, and more: all at
http://www.xeromag.com/franklin.html

ronviers@gmail.com

2007-03-02, 6:14 pm

On Mar 2, 10:16 am, omri...@XXXXXXXXXX wrote:
> I have been edited a picture as TGA format and I can't save it as TGA
> file again, can someone help me?
>
> Thanks

Hi,
What are Targas used for?
Thanks,
Ron

KatWoman

2007-03-02, 6:14 pm

<ronviers@XXXXXXXXXX> wrote in message
news:1172853515.851844.194810@n33g2000cwc.googlegroups.com...
> On Mar 2, 10:16 am, omri...@XXXXXXXXXX wrote:
>
>
> Hi,
> What are Targas used for?
> Thanks,
> Ron

my husband uses them to make files for his NASCAR race sim
you can paint cars in a PS layered template but they have to be flattened
and save as >>tga to be seen in the game interface

ronviers@gmail.com

2007-03-02, 6:14 pm

On Mar 2, 11:50 am, "KatWoman" <XXXJoliePrincessKatana...@hotmail.com>
wrote:
> <ronvi...@XXXXXXXXXX> wrote in message
>
> news:1172853515.851844.194810@n33g2000cwc.googlegroups.com...
>
>
>
>
> my husband uses them to make files for his NASCAR race sim
> you can paint cars in a PS layered template but they have to be flattened
> and save as >>tga to be seen in the game interface

Cool

tacit

2007-03-03, 6:14 pm

In article <1172853515.851844.194810@n33g2000cwc.googlegroups.com>,
"ronviers@XXXXXXXXXX" <ronviers@XXXXXXXXXX> wrote:

> Hi,
> What are Targas used for?

Targa-format files are commonly used for texture maps for 3D modeling
and rendering applications. A Targa file can contain an alpha channel
which controls transparency, and the rendering program "paints" a 3D
image by wrapping the Targa file around it. Transparent areas of the
targa file show the 3D model beneath.

--
Photography, kink, polyamory, shareware, and more: all at
http://www.xeromag.com/franklin.html

ronviers@gmail.com

2007-03-03, 6:14 pm

On Mar 3, 12:47 pm, tacit <tac...@aol.com> wrote:
> In article <1172853515.851844.194...@n33g2000cwc.googlegroups.com>,
>
> "ronvi...@XXXXXXXXXX" <ronvi...@XXXXXXXXXX> wrote:
>
> Targa-format files are commonly used for texture maps for 3D modeling
> and rendering applications. A Targa file can contain an alpha channel
> which controls transparency, and the rendering program "paints" a 3D
> image by wrapping the Targa file around it. Transparent areas of the
> targa file show the 3D model beneath.
>
> --
> Photography, kink, polyamory, shareware, and more: all athttp://www.xeromag.com/franklin.html

Hi,
Is the alpha channel the same thing as a displacement map? Can an
alpha channel used for transparency information also be used for
displacement information at the same time? Do Targas only allow for a
single alpha channel?

Thanks,
Ron

Mike Russell

2007-03-04, 6:14 am

<ronviers@XXXXXXXXXX> wrote in message
news:1172959882.867246.71300@64g2000cwx.googlegroups.com...
....
> Hi,
> Is the alpha channel the same thing as a displacement map?

Nope. Different animals completely. Alpha indicates per pixel transparency.
In 8 bit 255 means 100% opaque. A displacement map is a per pixel value to
shift the location of the pixel, remaping the image to a new, usually
warped, shape.If two values are used, you can displace in two dimensions.

> Can an
> alpha channel used for transparency information also be used for
> displacement information at the same time?

I suppose it's possible, but it's probably never done. The edges of an
object will have an alpha less than 100%, and this would cause those pixels
to be displaced less than pixels in the middle of the object. The result
would be a sort of skewed "punch out" of the object. It's more common to
use modified brightness information as a displacement map. One example is
a wavy flag effect where the waves correspond to the shaded colors of the
flag.

> Do Targas only allow for a single alpha channel?
I believe so. Targa got in there first with high quality video overlays for
the PC, so some of their file formats are still being used. The file format
itself is a dead end.
--
Mike Russell
www.curvemeister.com/forum/

ronviers@gmail.com

2007-03-04, 6:14 am

On Mar 4, 2:46 am, "Mike Russell" <RE-MOVEm...@Curvemeister.comRE-
MOVE> wrote:
> <ronvi...@XXXXXXXXXX> wrote in message
>
> news:1172959882.867246.71300@64g2000cwx.googlegroups.com...
> ...
>
>
> Nope. Different animals completely. Alpha indicates per pixel transparency.
> In 8 bit 255 means 100% opaque. A displacement map is a per pixel value to
> shift the location of the pixel, remaping the image to a new, usually
> warped, shape.If two values are used, you can displace in two dimensions.
>
>
> I suppose it's possible, but it's probably never done. The edges of an
> object will have an alpha less than 100%, and this would cause those pixels
> to be displaced less than pixels in the middle of the object. The result
> would be a sort of skewed "punch out" of the object. It's more common to
> use modified brightness information as a displacement map. One example is
> a wavy flag effect where the waves correspond to the shaded colors of the
> flag.
>
>
> I believe so. Targa got in there first with high quality video overlays for
> the PC, so some of their file formats are still being used. The file format
> itself is a dead end.
> --
> Mike Russellwww.curvemeister.com/forum/

I see. It seems like any image format worth its salt would include a
transparency channel. And maybe a few map channels too.
Come to think of it, PSD and TIF are some pretty powerful protocols to
be able to contain all the color, style, layer, text, vector and
channel information that PS generates.

Thanks,
Ron

Mike Russell

2007-03-04, 6:14 am

<ronviers@XXXXXXXXXX> wrote in message
news:1173000778.434292.189130@h3g2000cwc.googlegroups.com...
....
> I see. It seems like any image format worth its salt would include a
> transparency channel. And maybe a few map channels too.
> Come to think of it, PSD and TIF are some pretty powerful protocols to
> be able to contain all the color, style, layer, text, vector and
> channel information that PS generates.

This is only the 2D stuff too. Wait til you start digging into the
rendering side of things. It's the difference between understanding the
opcode set of a simple machine, versus an OS.
--
Mike Russell
www.curvemeister.com/forum/

Hunt

2007-03-04, 10:14 pm

In article <1172853515.851844.194810@n33g2000cwc.googlegroups.com>,
ronviers@XXXXXXXXXX says...
>
>On Mar 2, 10:16 am, omri...@XXXXXXXXXX wrote:
>
>
>Hi,
>What are Targas used for?
>Thanks,
>Ron

Ron,

Aside from the 2-D texture mapping, they are still used by many video programs
for effects, menus, etc. Folk, using MACs with Final Cut Pro for NLE (Non-
Linear Editing) use them as still images quite often. I see them for effects
and transitions in NLE apps.

I do not know FCP, but have had several instances where vid-editors needed
TGAs, in lieu of TIFFs for inclusion in video productions. No problem on my
end converting TIFFs and PSDs to TGAs. Only limitation that I saw was that
Bridge would not preview TGAs on my XP-box, though ThumbsPlus did, and I'll
bet that Irfanview would too. At the time, I inquired on the Adobe Forum, and
was told that it was a limitation of Bridge on the Win OS. Do not know how
ThumbsPlus got around that, but it was not something that Adobe could do -
then.

To the OP, I think that the others are right-on in their comments on 16-bit,
or Layers. A little more info on how the file came to your computer, i.e.
format, etc., and the editing that you did to the file, might be able to
explain where the problem is.

Hunt

KatWoman

2007-03-04, 10:14 pm

"Hunt" <noone@hunt.com> wrote in message
news:esf0s4011j2@news2.newsguy.com...
> In article <1172853515.851844.194810@n33g2000cwc.googlegroups.com>,
> ronviers@XXXXXXXXXX says...
>
> Ron,
>
> Aside from the 2-D texture mapping, they are still used by many video
> programs
> for effects, menus, etc. Folk, using MACs with Final Cut Pro for NLE (Non-
> Linear Editing) use them as still images quite often. I see them for
> effects
> and transitions in NLE apps.
>
> I do not know FCP, but have had several instances where vid-editors needed
> TGAs, in lieu of TIFFs for inclusion in video productions. No problem on
> my
> end converting TIFFs and PSDs to TGAs. Only limitation that I saw was that
> Bridge would not preview TGAs on my XP-box, though ThumbsPlus did, and
> I'll
> bet that Irfanview would too. At the time, I inquired on the Adobe Forum,
> and
> was told that it was a limitation of Bridge on the Win OS. Do not know how
> ThumbsPlus got around that, but it was not something that Adobe could do -
> then.
>
> To the OP, I think that the others are right-on in their comments on
> 16-bit,
> or Layers. A little more info on how the file came to your computer, i.e.
> format, etc., and the editing that you did to the file, might be able to
> explain where the problem is.
>
> Hunt

OR you can cheat and use this and from an older version of PS and see
thumbnails of all the psd and tga in WINDOWS explorer!!!!!

file is called
PSICON.DLL

FWIW hubby and I used this over two years now on WIN XP PRO SP2 no issues,
crashes etc

from the readme::
Photoshop CS - Windows Explorer Thumbnail Enable Patch
** This is not an Official Patch, use at your own risk. **
** Follow the Instructions carefully. **

1. Copy psicon.dll to the following directory:
C:\Program Files\Common Files\Adobe\Shell\

2. Double-click Install.reg, and merge it into your registry.

3. Celebrate, you're Done!

** Patch by Comrade Cruz **
http://home.earthlink.net/~freeware-soft
comrade_cruz@earthlink.net