Lock Alpha doesn't work with custom brushes

Bug Reports
1

Hi. Sorry if this has been reported before.

Just tested this in Aseprite 1.2.9 (Latest available on Humble Bundle. Not tested in beta version.)

I want to use a custom brush with rough “noise” on it, to add texture to a drawing. I had hoped to use the Lock Alpha mode, to allow me to just paint over the image, adding texture to areas that are already painted. This works for a normal brush, but for a custom brush (created with ctrl-b) the alpha locking feature does not seem to work, and the brush is applied to the transparent areas too.

I can work around this by using the magic want tool, but its quite a bit of extra work, especially if an area is already non-uniformly colored.

While I’m here, I might mention that some kind of “noise brush” would be an awesome feature for doing something similar. It could just randomly offset the value of each pixel. Thanks! :slight_smile:

EDIT: Ah, I realised that the jumble tool is basically what I was thinking of. Great, that already exists :slight_smile:

2

I would really appreciate the alpha working on custom brushes because I use the secondary color as a eraser. I don’t think I saw this on github so thought it worth bumping. Correct me if I’m wrong about the github part

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