[Gimp-developer] Better grouping of layer modes

[Martin Nordholts]

Martin Nordholts wrote:
> One have to differentiate between mathematical similarities of the
> blending formulas and the effect the modes have on the colours we
> perceive. From this point of view Multiply pairs better when Screen than
> with Divide.
>
> Actually from this point of view Divide and Subtract should probably be
> moved to the Difference category. They can produce completely new
> colours as well. Addition doesn't really have a counterpart (Addition is
> Linear Dodge in PS and GIMP has no Linear Burn counterpart).
>   

After doing the rearrangements we end up with the following groups.
Things to note is that Addition does not have a counterpart, and that
Divide is a bit of an outsider in its group when looking at the blending
formulas. If no one objects, the grouping at the end of this mail is
what I will commit.

/ Martin



Normal
Dissolve

Lighten Only
Screen
Dodge
Addition

Darken Only
Multiply
Burn

Overlay
Soft light
Hard light

Difference
Subtract
Grain extract
Grain merge
Divide

Hue
Saturation
Color
Value