OGRE

What OGRE is

OGRE is a free, open-source C++ rendering backend for building custom engines and specialized applications. Its stated uses include industrial robotics, scientific visualization, and specialized games. The engine handles scene rendering, spatial culling, transparency sorting, and background asset loading. It lists graphics support for Direct3D 9 and 11, OpenGL, OpenGL ES, Vulkan, and Metal. Developers can create scripted materials with HLSL, GLSL, and SPIR-V shaders and use image formats such as PNG, JPEG, DDS, and KTX. Assimp integration imports OBJ, FBX, DAE, glTF, and other mesh formats, while animation includes skeletal, morph, and pose methods. Lighting and effects include clustered light culling, stencil and texture shadows, post-processing, particles, skyboxes, billboards, and ribbon trails. OGRE also lists Bullet Physics, Dear ImGui, and bindings for Python, Java, and C#. It targets desktop, mobile, WebGL, PS3, and Xbox 360. The MIT License requires its text to accompany distributed software.