I followed a photography tutorial on a "orton effect" and recreated it in GEGL so we can have an instant quality orton effect/dreamy landscape in GIMP.

Download plugin here
viewtopic.php?f=9&t=21457#p293489

Below is unreleased now released plugin GEGL Orton that I put together yesterday and today. It sharpens the below layer and the top layer is a gaussian blur with opacity control, levels, and saturation to modify it. The dilemma I am having is that Orton has many blend modes but only looks authentic on "normal" and "lighten" blend modes, and I am deciding what I should do before release. Keep normal and lighten as the only blend modes or one ones that look highly unorthodox.

Attached first two pics a normal orton as defined by industry standards

NORMAL (orthodox)


LIGHTEN (orthodox)


However the third pic is my unique orton that is highly unorthodox that I term "dark orton"
DARKEN (unorthodox)


and yes I am aware that all the blur filters blended and Bloom and SoftGlow in GIMP are other Orton Effects that GIMP can do without plugins. I just made this to show what is possible with GEGL.

Another preview of Orton in early development (50 minutes ago) before it had a sharpen original image slider.

Hardlight can make an even darker orton but this isn't orthodox at all. This is an example of a feature that may be useful that I cut in an official plugin release

And the "Screen" blend mode orton which is orthodox but too similar to bloom and softlight

Download GEGL Orton here (works on both 2.10 and 3)





>Filters>Artistic>Orton effect on GIMP 3 in 2.10 its GEGL Operation "orton"


LOCATION TO PUT BINARIES

Windows

C:\Users\(USERNAME)\AppData\Local\gegl-0.4\plug-ins

Linux

~/.local/share/gegl-0.4/plug-ins

Linux (Flatpak includes Chromebook)

~/.var/app/org.gimp.GIMP/data/gegl-0.4/plug-ins

its now on Github

https://github.com/LinuxBeaver/GIMP-GEGL-PLUGIN_Orton