OGRE-Next 3D
aka ogre v2 - scene-oriented, flexible 3D C++ engine
...It focuses on high-performance rendering pipelines, especially Vulkan and modern OpenGL, offering tools for photorealistic and stylized rendering. OGRE-Next is modular and flexible, providing a developer-friendly environment with scene management, lighting, shadowing, and post-processing features. With improved performance and a focus on modern graphics APIs, it's ideal for developers building next-gen 3D engines or simulations.