DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
FreeCAD - An open-source parametric 3D modeler
Ralpha Image Resizer - High-speed image batch conversion tool
meshmixer - meshmixer is an experimental 3D modeling tool for making 3D mashups without too much hassle.