by fe-tools, Inc. FEAView is a finite element modeler and post-processor for structures problems using MSC. Nastran. It supports all the elements, properties, materials, and loads commonly used in linear static problems.
by Styxar Pictomod3D creates textured 3D mesh models from images of real objects. It takes either a rotated scan of an object or a few images from arbitrary angles, and outputs 3D objects in Wavefront OBJ or DirectX X file format.