GeoTool Beta 2 - 18 June 2016   A map viewer/editor for Lego Rock Raiders. Currently it can edit most aspects of a map's terrain, and can also convert the heightmap to and from images for editing in GIMP/Photoshop/Paint.   It's written in D and OpenGL. Windows only. You can get the source code on GitHub. It replaces the old Heightmap Converter tool, which was ugly and too badly coded to improve any further. Also, I much enjoyed switching to D, it's a fun programming lang