Re: [Gimp-developer] Overlay Mode - fix.

[Ofnuts <ofnuts laposte net>]

On 11/12/2012 06:55 PM, Ville Sokk wrote:
> All the legacy blending modes are funny, not just overlay. All of them 
> need to be fixed.
>
> Blending modes are arbitrary artistic things and there is no correct 
> overlay formula. GIMP doesn't necessarily have to use the one in 
> Wikipedia. Here's an interesting and thorough post in the GIMP 
> developer list on this topic: 
> https://mail.gnome.org/archives/gimp-developer-list/2012-July/msg00201.html
>
> To start making new layer modes, somebody has to come up with a list 
> of modes that are actually needed. And somebody has to come up with a 
> way to include both legacy and new layer modes in the GUI (I think 
> that was already covered in IRC).

Just wondering if the blend modes couldn't be implemented with 
specialized plugins. There would be uses  for this in photography and/or 
astrophotography (exposure blend, averaging...).After all it's just a 
formula with the RGB values for the layer and the composite image below, 
isn't it? (at least this is how the current ones are described).