Hi, I have found a man photo pic that is in perspective and put lights on his face’ certain area . Then I change that image to an alpha with grey mode . I cannot shape bright area with standard brush and the alpha in Zbrush. I assume there is a trick in photoshop, I dont know. Could you please help me?
Can you show what you’re doing?
I’m assuming you imported the image, it’s now it’s own ‘Layer’. You could use the smudge brush, lots of other choices in the 2.5 D brushes. HTH
Thanks for all your help 
The problem is solved