The color tools (Levels, Curves, Threshold...) memorize all settings used. Over time these accumulate, slowing down tool startup, and making it more difficult to reach the explicitly saved settings, which appear at the bottom of the list.
The settings-cleaner script will run automatically at each Gimp startup and do some housekeeping on these files, directed by a short configuration file, keeping at most a specified number of settings not older than a specified number of days. Settings that have been explicitly saved with a name are of course left in.
This is a normal map generator from a single image, originally created by omaremad. Load a single layer picture, then choose filters/map/insanebump..., tweak the details, then hit OK. The normal/height/ambiend/specular maps for the picture will be created within the folder where the original picture resides.
The script produces different files within the original image's directory:
the _n is the normal map,
the _s is the specular,
the _d is the diffusion (just the color)
the _a is the ambiend occlusion
the _h is the displacement (or height map)
I made a small python script, similar to a details-enhancement-procedure described here: http://registry.gimp.org/node/27945
Vivid light blend mode is implemented using the color dodge and color burn technique. Selective Gaussian Blur is used instead "Surface Blur" so it works without G'MIC dependencies. Take care of the Gaussian Radius since high values / big images make Gimps Selective Gaussian Blur a VERY time consuming operation.
Divide the currently active layer into subsections of specified width&height (pxs). New layers containing subsections are appended to the active image's layer list. The new layers are labeled "(<x>,<y>)" in the new co-ordinate system.
Please see the readme included in the attached file for installation instructions.
The new co-ordinate system begins (0,0) in the top-left hand corner and moves left-to-right, top-to-bottom.
<x> represents row
<y> represents column