Request for new layer blend modes

[Herbert123]

A request to expand the range of layer/paint blend modes. In competing software (Krita, Affinity, Fireworks) a couple of quite handy "new" blend modes are available:

- Soft Dodge (Penumbra B in Krita) - really nice for painting in shadows
- Soft Burn
- Negation
- quadratic blend modes: Reflect, Glow, Freeze, Heat
- XOR
- Interpolation
- Inverse Color Dodge
- Inverse Color Burn

Krita offers more than 95 different blend modes (a 'bit' overkill), but the above ones are quite useful to have.

The (Delphi) formulas can be found here: http://www.pegtop.net/delphi/articles/blendmodes/

I think this is low-hanging fruit that can be quickly implemented.

[shijan]

Isn't it possible in PhotoLine with opacity +-200% combined with existing blend modes? Or those special blend modes are based on something different?

[Herbert123]

Some can be emulated with a combination of settings, I think, but several are quite specific. Soft Dodge, for example, uses this formula:

f(a,b) = ½a / (1 - b) (for a + b < 1)
1 - ½(1 - b) / a (else)

I can't see how to replicate that blending in PhotoLine (well, I suppose it could be scripted, perhaps?).

Anyway, it wouldn't hurt if PhotoLine had a couple more blend modes in its arsenal. Thinking of which: it would be awesome to have a blend mode in which the user could input their own formulas, or something.

[JulianZI]

I actually only miss just the blend mode "erase". It would just paint to the transparency so the layer underneath gets a hole.
There is the "Remove" blendmode but I don't know what it does.

[Martin Huber]

I actually only miss just the blend mode "erase". It would just paint to the transparency so the layer underneath gets a hole.

Isn't that just a layer mask/clipping layer?

There is the "Remove" blendmode but I don't know what it does.

"Remove" is mostly used to remove color casts from images. Dehaze uses it for its correction layer.

Martin

[JulianZI]

Isn't that just a layer mask/clipping layer?

It works inverse to the clipping layer - so it removes everything what's covered and leaves the rest.
It is very useful in combination with vector graphics because it does not modify the vector itself and so does not create new borders with effects or outline.

[Martin Huber]

Isn't that just a layer mask/clipping layer?

It works inverse to the clipping layer - so it removes everything what's covered and leaves the rest.

I still don't understand the difference.

[JulianZI]

The text layer in my screen shot has the blend mode "erase". In this example there is no grouping involved.
It simply sets the alpha channel of all underlying drawings (or the drawing in current group) to 0.

screen.jpg

[Martin Huber]

The text layer in my screen shot has the blend mode "erase". In this example there is no grouping involved.

You can do that by making the text a clipping layer/layer mask and inverting its clipping effect in the Layer Attributes:

InvertClipping.png

Martin

[JulianZI]

Funktioniert, danke.