I’ll have to find some… but will. Mostly I was just trying to see if I’m on the right track.
From what I’ve seen demonstrated* they usually have several characteristics. Maybe ART’s brush masks do overlap more than I think, but:
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The brush is the delivery, not the effect.
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Adjustment brushes have all the usual brush attributes: hardness / feathering, opacity, flow, size, pressure sensitivity, etc.
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A brush is chosen then an effect is ‘loaded’ (assigned) to it: white balance, tonal change, saturation, etc.
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The effect of an adjustment brush is cumulative: Brush over the same spot repeatedly and it gets stronger.
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I don’t believe (?) typical adjustment brushes actually create a user-visible mask, per se. They just do their stuff and they’re done. There may be masks involved under the covers, but not at the user level.
There may be more but that’s what I’ve seen.
To be fair brush masks in ART have (at least) one important capability that I’ve not seen demonstrated in adjustment brushes elsewhere: Edge-aware feathering. However, IMO edge-aware feathering and brush hardness / feathering complement each other rather than replace each other. In a similar vein, adjustment brushes and masking complement, rather than replace, each other IMO.
Thanks.
* None of the tools I have / own have adjustment brushes.