07-31-2020, 09:56 AM
This is the image size shown at the bottom of the Gimp Window ? - The size in memory
My guess, and it is only a guess.
This also shows any memory used by "undo" Even when undo levels are set to zero, if there is memory allocated it will be used. Look in Edit -> Preferences -> System Resources for those settings.
Adding and moving into a layer group does add the equivalent of a couple more regular layers at least it does here. Adding a mask to the layer group however is neutral.
My guess, and it is only a guess.
This also shows any memory used by "undo" Even when undo levels are set to zero, if there is memory allocated it will be used. Look in Edit -> Preferences -> System Resources for those settings.
Adding and moving into a layer group does add the equivalent of a couple more regular layers at least it does here. Adding a mask to the layer group however is neutral.