id-Software/DOOM-3-BFG
DOOM 3 BFG
该存储库包含一款单人第一人称射击动作游戏的 C++ 游戏源代码。它是 Id Tech 4 引擎的软件实现，专为 3D 渲染而设计，重点在于实时统一光照和几何体。
该项目支持修改核心引擎逻辑和渲染系统。它可作为经典游戏引擎修改、第一人称射击游戏开发和复古游戏保存的资源。
该引擎利用统一着色器流水线和模板阴影体（stencil shadow volumes）进行光照效果处理，并结合 BSP 树空间分区进行可见性剔除和碰撞检测。它采用基于组件的实体系统来管理游戏对象。
Features
- Game Source Code - Ships the original C++ source code for a commercial 3D game, enabling full engine modification.
- C++ Game Engines - Provides a high-performance game engine implemented in C++ for low-level system and memory control.
- First-Person Shooter Development - Provides a complete framework for developing and modifying first-person shooter combat mechanics.
- First-Person Shooter Engines - Implements a 3D rendering engine specifically architected for first-person shooter combat and lighting.
- Game Logic Modification - Enables the modification of an older game engine's core logic and rendering systems via its source code.
- Id Tech 4 Implementations - Provides a full software implementation of the Id Tech 4 engine with a focus on unified lighting.
- Game Programming - Provides a substantial C++ codebase for studying and practicing low-level systems programming in a game context.
- Entity Component Systems - Employs an entity component system to decouple game object data from behavior for flexible composition.
- Engine Source Modifications - Change core behavior and rendering systems by compiling and modifying the underlying source code.
- Action Games - Implements a native single-player action game focused on combat and exploration.
- Retro Game Preservation - Ensures the preservation of a classic game by providing source code that can be updated for modern hardware.
- Shadow Volume Renderers - Uses stencil shadow volumes to calculate real-time shadows via geometry extrusion and buffer masking.
- Binary Space Partition Trees - Implements binary space partitioning trees for efficient 3D visibility culling and collision detection.
- Unified Shader Pipelines - Implements a unified shader pipeline to achieve complex real-time lighting and material effects.
- First Person Shooters - Source code for a modern-era first-person shooter.
