Re: [Gimp-user] Explicit manipulation of Alpha Channel.

2011-04-25 Thread Frederico Zveiter
Thanks guys! That's what I was looking for.

On Thu, Apr 21, 2011 at 4:59 AM, Patrick Horgan  wrote:

> On 04/20/2011 11:20 AM, Richard Gitschlag wrote:
> > ... elision by patrick ...
> > More specifically, on the Layers menu, select "Add Layer Mask", with full
> opacity (white), then click on the mask icon from the Layers toolbox (it
> will appear next to the source layer) and start painting on it like you
> would any grayscale surface.  (You can toggle the "Show Layer Mask" option
> any time you want to see exactly what the mask layer by itself looks like.)
>  You can keep it this way for working, or when finished, select "Apply Layer
> Mask" to transfer the layer mask into the source layer's alpha channel.
> >
> What a beautiful elegant description.  Clear and complete.  Nice writing.
>
> Patrick
>
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Re: [Gimp-user] Explicit manipulation of Alpha Channel.

2011-04-21 Thread Patrick Horgan
On 04/20/2011 11:20 AM, Richard Gitschlag wrote:
> ... elision by patrick ...
> More specifically, on the Layers menu, select "Add Layer Mask", with full 
> opacity (white), then click on the mask icon from the Layers toolbox (it will 
> appear next to the source layer) and start painting on it like you would any 
> grayscale surface.  (You can toggle the "Show Layer Mask" option any time you 
> want to see exactly what the mask layer by itself looks like.)  You can keep 
> it this way for working, or when finished, select "Apply Layer Mask" to 
> transfer the layer mask into the source layer's alpha channel.
>
What a beautiful elegant description.  Clear and complete.  Nice writing.

Patrick

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Re: [Gimp-user] Explicit manipulation of Alpha Channel.

2011-04-20 Thread Richard Gitschlag

>
> Date: Tue, 19 Apr 2011 22:42:24 +0200
> From: ofn...@laposte.net
> To: gimp-user@lists.XCF.Berkeley.EDU
> Subject: Re: [Gimp-user] Explicit manipulation of Alpha Channel.
>
> This is what layer masks are meant for.
>

More specifically, on the Layers menu, select "Add Layer Mask", with full 
opacity (white), then click on the mask icon from the Layers toolbox (it will 
appear next to the source layer) and start painting on it like you would any 
grayscale surface.  (You can toggle the "Show Layer Mask" option any time you 
want to see exactly what the mask layer by itself looks like.)  You can keep it 
this way for working, or when finished, select "Apply Layer Mask" to transfer 
the layer mask into the source layer's alpha channel.


-- Stratadrake
strata_ran...@hotmail.com

Numbers may not lie, but neither do they tell the whole truth.
  
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Re: [Gimp-user] Explicit manipulation of Alpha Channel.

2011-04-19 Thread Ofnuts

On 04/19/2011 10:35 PM, Frederico Zveiter wrote:


Hi Folks,

Can anyone teach me how to do the steps described in the article "How 
do I Import Alpha Textures?" 
(http://unity3d.com/support/documentation/Manual/HOWTO-alphamaps.html) 
but with GIMP?


Is special, how can I create an explicit alpha channel that I can 
manipulate?





This is what layer masks are meant for.
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