f3d [format 3 dimensional] is a file format for storage of three-dimensionmal data, accompanied by a suite of tools for processing and visualization.

f3d is being developed as an open source project with hope that it will be useful for researchers and students interested in the areas of volume graphics and visualization, and thus will provide a basis for improved communication between different laboratories and applications.

VRE is a modular volume rendering library.

f3d (Format 3 Dimensional) is a simple format for storage of 3D datasets supporting different voxel types (8, 16, 32 bit signed/unsigned integers and 32 bit floats) and different grids (cartesian, regular, rectilinear). It does not support curvilinear and unstructured grids. The package includes basic routines for storage/retrieval of such data into/from a file.

TinyXML is a simple, small, C++ XML parser that can be easily
integrating into other programs. Have you ever found yourself
writing a text file parser every time you needed to save human
readable data or serialize objects? TinyXML solves the text I/O file
once and for all.
(Or, as a friend said, ends the Just Another Text File Parser
problem.)