Re: [Gimp-user] Transparent background on flattened images?

["Rick Strong" <rnstrong primus ca>]

When you open your base (new) image, open with a fill of "transparency". 
(Click "Advanced")
- Create three transparent layers on top of base layer.
- Put your woman on the top layer, man on the second down, blueprint third 
down.
- Merge woman and man. Adjust transparency so blueprint lines show through.
- If you want, merge Man-Woman layer with blueprint layer.
- DO NOT FLATTEN ANYTHING.
- Export to PNG (which supports transparency).
- Put in book cover layout.

Rick S.

-----Original Message----- 
From: recoveringartist
Sent: Saturday, July 01, 2017 5:26 AM
To: gimp-user-list gnome org
Cc: notifications gimpusers com
Subject: [Gimp-user] Transparent background on flattened images?

Hi, I've been making use of this forum the past few months as I learn GIMP, 
but
this is my first time posting.

I'm working with GIMP 2.8.16.

My question:  Is there a straightforward way to get a transparent background 
on
a flattened image?

The top portion of the book cover I'm generating features two separate 
images, a
girl and a guy, brought together to give the illusion they're with each 
other in
the same setting.  I want to set a third image (a blueprint vector) behind 
them,
then reduce the opacity on the first two layers so the blueprint lines show
faintly through.

Problem is, when I reduce the opacity on the girl, the guy shows through her
(see attached photo "Book cover transparency attempt").

The same thing happens when I use Merge Down.

I've experimented with opening a new view and flattening the girl and guy 
layers
to make one image.  Hooray, they're equally solid now and I can adjust their
opacity simultaneously with no ghosting.   But now I've got a gray, opaque
background where I need it to be clear.  (See image "Flattened view").

If I must go through all the _fun_ of redoing the layer mask, I'll suck it 
up
and do it.  But if there's a simpler, more elegant way to get a clear 
background
on a flattened image, I'll be immensely grateful to find it out.

Or . . .  is there another a method for joining two images together so their
opacity can be adjusted without one image showing through the other?  That 
would
solve the problem, too.

Thanks!

Attachments:
* 
http://www.gimpusers.com/system/attachments/620/original/Fullscreen_capture_712017_41303_AM.bmp.jpg
* 
http://www.gimpusers.com/system/attachments/621/original/Fullscreen_capture_712017_43823_AM.bmp.jpg

--
recoveringartist (via www.gimpusers.com/forums)
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