What do alpha channels do? I'm not sure how to apply that

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Anonymous
2016-09-21 23:08:39 Post No. 2689413
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Anonymous 2016-09-21 23:08:39 Post No. 2689413 [Report]

What do alpha channels do? I'm not sure how to apply that to my digital work.

Is it just like a layer where painting = erasing?

Anonymous 2016-09-21 23:30:31 Post No.2689430
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Anonymous 2016-09-21 23:30:31 Post No.2689430 [Report]

Alpha channel is the term used to describe the transparent part of a transparent picture. It doesn't really have anything to do with art

Anonymous 2016-09-21 23:34:19 Post No.2689433
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Anonymous 2016-09-21 23:34:19 Post No.2689433 [Report]

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>>2689413
bumping for interest cause the only thing I can learn for myself about it is to use 'inherit alpha' on overlay layers, like contrast and color, onto a mask layer. painting on the overlay layer doesn't flow over onto the bg

Anonymous 2016-09-22 05:13:18 Post No.2689709
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Anonymous 2016-09-22 05:13:18 Post No.2689709 [Report]

>>2689433
>>2689413
An alpha channel is the transparency. RGBA

What do alpha channels do? I'm not sure how to apply that

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I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible.
Read more on this topic here - https://archived.moe/talk/thread/1694/