Open3D

Open3D is an open-source library that supports rapid development of software dealing with 3D data. Its frontend provides carefully selected data structures and algorithms in both C++ and Python, with an optimized, parallelized backend. Core features include 3D data structures, processing algorithms, scene reconstruction, surface alignment, and advanced 3D visualization. As of version 0.19.0, Open3D is actively maintained with regular releases, often several times a year.