Install libopenctm1 by entering the following commands in the terminal:
sudo apt update sudo apt install libopenctm1
Library for compression of 3D triangle meshes
OpenCTM — the Open Compressed Triangle Mesh file format — is a file format, a software library and a tool set for compression of 3D triangle meshes. The geometry is compressed to a fraction of comparable file formats, and the format is easily accessible through a simple, portable API. . This package contains the OpenCTM runtime library.