I have set up a repository for a little tool I'd like to share.
I used it (and Blender) to create the UIs for audioD3CK's plugins.
https://github.com/dasdeck/RenderSkin
It is not very polished, but it works and makes life easy if you want to convert 3D renderings into skins.
It is JUCE based, and if you want to skin your own plugins you can use the classes from the.
https://github.com/dasdeck/RenderSkinLib
Cheers!
