NTXShape is a GIS data conversion tool that translates CARIS NTX interchange files into the ESRI shapefile format. It converts points, lines, polygons, text, spot heights, and soundings, preserving virtually all of the information found in the source data. It includes a command-line interface and a static library.
LiquidMaya is a Maya to Renderman plug-in that handles full Renderman output support with a focus on speed, efficiency, and extensibility. Its features include procedural rib generation, full network rendering support, segmented rib files, a shader assignment interface, and much more. Along with the ability to write full C++ plug-ins, it is incredibly easy to script Liquid with Mel. Liquid was used for the visual effects of the "Lord of the Rings" movie.