Would be great to have an option that will lock opacity when resizing my brush with alt+right click drag, There is one for brush hardness, but never found one for opacity!
This is hacky but here's what I use for Autohotkey to resize my brush and keep opacity at 100. The downside is opacity will ALWAYS go to 100 after sizing the brush using the shortcut.
You can see that I'm overriding "d" key to resize my bush. So when I press "d" I have Auto Hot Key send alt and right click to photoshop instead. Note that this works as long as you drag WITHOUT pressing the pen on the screen. Otherwise, I get an eyedropper.
You can change d out for whatever key you want to listen to. The part of the code that is actually setting opacity back to 100 after I change brush size are the Send{0 down} and Send{0 up}.
I can't believe that after all these years this is the only viable solution.
Thank you very much for this "hack". Whatever drawbacks it might have, at least I don't have to worry about painting, or worse, erasing with 99% opacity. I wish I new about this years ago.
This is the single biggest issue for me in PS, as a professional digital painter. This issue (almost) alone has nosedived my opinion of Adobe.
I have to keep an eye PERMANENTLY, as in every few seconds, on the opacity box while I'm painting. Its no different to driving a car and having to check the fuel gauge every few heartbeats.