Patch: Many composite/blend modes mostly compatible to Adobe Photoshop (c)

[Timothée Giet]

Very cool, I've been waiting for someone to do this ! d^^b
(I did a feature request in the bugtracker here
https://bugs.kde.org/show_bug.cgi?id=256175
The description was not very clear but this is exactly what it was about)


2011/1/15 Silvio Heinrich <plassy at web.de>

>  On 01/15/2011 03:23 PM, Timothée Giet wrote:
>
> "Do you mean when you have several other layer and you create a new layer
> on top of them and paint
>
>>  on the new layer, then the combined transparency (alpha channels) of the
>> layers under the new layer
>> is copied to the new layer and the color is used from the brush?
>> If you mean this, it would actually be a cool idea. Would be pretty useful
>> (at least for me :D), but this is not really
>> a blending mode (i mean, yes it somehow is but not really :D). I think the
>> brush code would need some modifications for that. Can you tell me a program
>> that support this (so i can try it out). I haven't found something like this
>> in Gimp or Photoshop."
>>
>>
>
> That's the idea, but exactly "the combined transparency (alpha channels) of
> the layers under the new layer" is not "copied"  to the new layer, you still
> paint on the whole page, as with any other layer blend mode (meaning if you
> turn it back to Normal blend mode the "blend effect" disapear…)
>
> I use this painting/layer blend mode on TVPaint (the best commercial
> Painting application to me ;) )
> (There was an open beta for Linux but it was usable until January 1st, I
> don't think there is a new one yet. If you can try the win or mac demo)
>
> Also this blend mode is in Open Source app SYNFIG STUDIO !!! it's a vector
> program but the Onto mode is there (with a few original useful others, like
> Straight and Straight Onto…)
> Look at here: http://www.synfig.org/wiki/Blend_Method_Parameter
>
>
>
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>
>  Ah... ok... now i understand. This mode is meant for layer compositing.
> I see how it works. It would be no problem to add this blend mode.
> When/if i get a developer account and everything is all right with the
> "blending modes" patch so
> it can be applied, I can add this mode... would only take a few minutes :)
>
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