Convert NFF to 3DM

The Neutral File Format (NFF) is a minimal scene description language used in computer graphics for testing rendering algorithms and efficiency schemes. Developed in the 1990s, NFF provides a structured way to define 3D geometric objects, surface properties, lighting placement, and viewing angles. It is primarily utilized in ray tracing applications and procedural databases, enabling interoperability between different rendering systems. While originally designed for algorithm evaluation, NFF has influenced the development of more advanced scene description formats. Its simplicity and ASCII-based structure make it a practical choice for quick data exchange in 3D modeling environments.

The 3DM file extension, standing for "3D Model", is associated with the openNURBS initiative, which facilitates the exchange of 3D geometry across CAD, CAM, CAE, and computer graphics software. Developed by Robert McNeel & Associates, it serves as the native format for Rhinoceros (Rhino) software. Introduced to address interoperability challenges, 3DM files store precise 3D models using NURBS (Non-Uniform Rational B-Splines) and polygon mesh representations. This format is widely adopted due to its open-source nature, enabling developers to read and write 3DM files without proprietary restrictions, thus promoting seamless data sharing in 3D modeling workflows.