追記
Panda3DはC++でも書けるらしい。
Introduction to Panda3D - Panda3D Manual
- Panda3D Basics
Panda3D is a 3D engine: a library of subroutines for 3D rendering and game development. The library is C++ with a set of Python bindings. Game development with Panda3D usually consists of writing a Python or C++ program that controls the Panda3D library.