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 Post subject: Using more than one layer in "Alpha To Selection" problems
PostPosted: Sun Nov 11, 2018 9:52 pm  (#1) 
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Wow - I'm ready to cry after four evenings trying to figure out what is happening. I'm following all the tutorials I can find to make a chrome font. However, most are for previous versions, where process titles have been changed (ie; "blend" to 'gradient"), tools have been moved and what would seem like pretty straight forward processes are not yielding results.

For instance - once I hit "Alpha to Selection" on one layer and apply a gradient color to that layer, then hit "Select - None, the Alpha goes away. Great! But when I create a duplicate layer to work on the font of the new later with different colors and apply the "Alpha to Selection" tool, it erases the work I did on the first layer, OR, won't let me save the colors I manage to get on the second layer.

Is this typical? Am I missing a basic step?

Please help !!!!

thanks,

Stuart


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 Post subject: Re: Using more than one layer in "Alpha To Selection" problems
PostPosted: Sun Nov 11, 2018 10:16 pm  (#2) 
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Should only occur to the layer you have selected.
Make sure when you are working with multiple layers that you have the right one selected.

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 Post subject: Re: Using more than one layer in "Alpha To Selection" problems
PostPosted: Sun Nov 11, 2018 10:23 pm  (#3) 
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I dont know what is going on, because deselecting does not delete the alpha channel.
It sounds like you have a misconception of what is alpha and what is a selection from alpha.
So just to be clear: alpha = transparency.
Without an alpha channel you can not have transparency.

Are you sure you didnt remove the alpha channel instead of deselecting ? Because thats what it sounds like.

'Alpha to selection' is a common method to get a selection from objects (like text) on a transparent layer but this selection is not 100% accurate.
You can work with it, but a better way is to right click on the text layer before you applied 'layer to image size' and choose 'text to path'.
This will create a path in the paths tab, from where you can call up a selection anytime you'll need it.

Using a path is also the best method to later apply a stroke to your text.


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 Post subject: Re: Using more than one layer in "Alpha To Selection" problems
PostPosted: Mon Nov 12, 2018 12:21 am  (#4) 
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I GOT IT !!!

Turns out I need to hit "enter" before hitting "select none" on each layer. Thanks anyways guys! I knew if I asked I'd suddenly find the answer! Sounds stupid that I didn't think of that, but, well, ... I'm not the sharpest tack in the drawer.


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 Post subject: Re: Using more than one layer in "Alpha To Selection" problems
PostPosted: Mon Nov 12, 2018 6:16 am  (#5) 
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Konstantin wrote:
'Alpha to selection' is a common method to get a selection from objects (like text) on a transparent layer but this selection is not 100% accurate.
You can work with it, but a better way is to right click on the text layer before you applied 'layer to image size' and choose 'text to path'.
This will create a path in the paths tab, from where you can call up a selection anytime you'll need it.

Using a path is also the best method to later apply a stroke to your text.


Alpha-to-selection is 100% accurate (selection is also transparency, when you think about it). Try this:

- create text
- alpha to selection
- add transparent layer
- bucket fill selection with same color as text layer
- top layer to "Difference" mode
- Layer>New from visible.

Check the histogram, all pixels are RGB(0,0,0), so there is no difference between the two layers.

Even if working with paths is a good idea when using text, paths aren't the only way to save a selection, you can use Select>Save to channel to save the selection as a channel and then restore it at will (it appears in the Channels list).

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 Post subject: Re: Using more than one layer in "Alpha To Selection" problems
PostPosted: Mon Nov 12, 2018 7:38 am  (#6) 
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ofnuts wrote:
Alpha-to-selection is 100% accurate (selection is also transparency, when you think about it).

Even if working with paths is a good idea when using text, paths aren't the only way to save a selection, you can use Select>Save to channel to save the selection as a channel and then restore it at will (it appears in the Channels list).

Yes, you are right. I was confusing this with selection to path.

Saving a selection in a channel is very convenient when working with layermasks, but if you want to add a stroke to your text you will need a path anyway. So i will stick with text to path before i apply layer to imagesize to my textlayer.


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