Panda3D Manual Welcome to the Panda3D documentation! Panda3D is an open-source, free-to-use 3D engine made for the development of realtime 3D games, visualizations, simulations, experiments — you name it! It consists of a library of subroutines that can be used with either the Python or C++ programming language, as well as a few tools to assist with development and debugging. There are two versio