NFF

NFF is a simple text format used to describe the basic geometric information of a three-dimensional model, mainly including vertex and facet data of geometric bodies.

The NFF format is usually used to store relatively simple 3D geometric models, suitable for teaching, demonstration, or testing purposes.

Due to its simple text structure, NFF files are easy to create and understand, but are not suitable for complex models or applications that require high-performance loading and rendering.