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I want to create a Image of a brush stroke with a perfect alpha channel, but using the tools in the Selection menu doesn't result in a too perfect result.

Since it's also possible to paint in the alpha channel, is it possible to paint onto a layer and onto the alpha channel at the same time, so it creates a perfect selection?

or am I just doing something wrong when trying to create an alpha channel of a little more complex brush strokes?

thanks

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What do you mean by "perfect"? –  Farray Mar 7 '12 at 1:02
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1 Answer 1

If you have the brush stroke on its own layer, ctrl+click the layer and then create a new alpha channel from the selection.

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thx horatio, but that option isn't available to me, only "create clipping mask" –  Roland Mar 6 '12 at 22:40
    
On the Mac, it's Cmd-click (on the thumbnail image in the Layers Panel). Control-click is the equivalent of a right click in Mac OS. –  Alan Gilbertson Mar 7 '12 at 0:17
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