index.md

Run3 Engine Overview

Run3 is an experimental open-source game engine built around the Ogre3D rendering library. It aims to provide Source-engine style gameplay features while remaining fully moddable. The code base is written in C++ and integrates several middleware libraries for graphics, physics and sound.

Key Dependencies

• Ogre3D – primary rendering engine
• OIS – input handling
• CEGUI – graphical user interface system
• OpenAL – audio playback
• OgreNewt – physics and collision

Architecture

At a high level the engine is organized into a few major modules:

• Rendering – custom scene managers and deferred shading built on top of Ogre3D.
• Physics – simulation using OgreNewt, with helpers for ragdolls and rigid bodies.
• Sound – OpenAL based sound manager for in‑game audio.
• Input & UI – OIS for keyboard/mouse and CEGUI for menus and HUDs.
• Game Systems – gameplay logic, AI, scripting and other utilities.

This documentation section will grow with additional guides and references.

References

• Sequence XML entities
• NPC classes