Neutral File Format (.nff)
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.