mm3d binary package in Ubuntu Focal riscv64

 This is an OpenGL based 3D model editor that works with triangle-based
 models. It supports multi-level undo, skeletal animations, simple texturing,
 scripting, command-line batch processing, and a plugin system for adding new
 model and image filters. Complete online help is included. It is designed to
 be easy to use and easy to extend with plugins and scripts.
 .
 It supports the following 3d files: MilkShape (ms3d), Wavefront (obj),
 LightWave 3d Object (lwo), Quake 2 model (md2), Quake 3 model (md3),
 Caligari trueSpace (cob), and AutoCAD (dxf).

Source package