June 06, 2009
You can stop asking for an “Add” mode in Photoshop
…because it’s already in there: “Linear Dodge (Add).” Seriously. Please tell a video-editing/compositing friend. :-)
I’m not entirely sure about the naming history–that is, why Photoshop doesn’t just call Add “Add.” I think it has something to do with the fact that Calculations in PS already has “Add” and “Subtract” functions, and at the time the blending mode was introduced, the team didn’t want to cause confusion with Calculations.
Of course, confusion has ensued regardless, so maybe it’s time to simply switch the blending mode name to be “Add (Linear Dodge).” Just know that if we do that and people still ask for Add, my head may literally explode.