Revisiting the concept of creating and using Luminosity Masks in GIMP. This script-fu will generate a full set of Light, Dark, and Midtone masks as channels for your image (based on the work of Tony Kuyper originally).
Update: Issues corrected, Restore Default button added added 64Bit Ubuntu Version
This is a C language version of the Insane Bump plugin. I have converted the Python code to a C language program and all the needed libraries and tools to do so. I have improved upon this program by adding an AO adjustment and 5 Preview panes. This is the Sixth release.
This plug-in 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 ambient occlusion