Hello, previously i wrote a GIMP plugins that made vivid normal maps like those produced by crazy bump, the plugin was slow difficult to install requiring many dependencies.
Despite the poor design members of the open source community used the plugin despite me providing no support for it.
This made overhaul the algorithm, now it runs on the GPU (fast enough for realtime preview like crazy bump) and requires no dependencies other than your installed graphics driver. It is cross platform too.
Here is an early alpha version for you guys to play around with.
It also produces fake AO maps saved as the alpha of the Normal map.
Here is the zip for windows
I have only tested this on linux and windows on a Nvidia card.
Your feedback would be appreciated