^3 (Cubed) vs libev

^3 (Cubed) is a lightweight, open-source 3D modeling and animation software. It features polygonal modeling, rigging, animation, simulations, rendering, and more. The interface is streamlined and intuitive for beginners to quickly start creating 3D projects.

libev is a high-performance event loop/event model library written in C. It allows asynchronous events and callbacks to be registered and handled efficiently in applications. libev supports various event notification interfaces like timers, signals, sockets, pipes, and more.