Mini DOOM-like Renderer (C, CPU-only)

A lightweight 2.5D rendering engine inspired by DOOM, built purely in C using MiniLibX.

Main Features

• Built-in map editor
• Custom internal window manager with event dispatching
• Full CPU-based 2.5D rendering
• Dynamic BSP partitioning and portals for optimized rendering
• Software-based post-processing effects: shading, posterization, camera deformation
• Basic entity system
• Smooth player controls with collision handling

Technologies

• Pure C implementation without standard libc (custom implementation)
• MiniLibX (basic wrapper on X11)

Demo

Gameplay

Map Editor

🔧 Build and Run (Linux Only)

# Recursive clone (includes MiniLibX)
git clone --recurse-submodules <repo>

# Compile
make

# Run with example map
./cub3D maps/nice_map.cub

Resources

• Doom-style 3D engine in C (Bisqwit)
• Quake renderer overdraw optimization
• Binary Space Partitioning in 3D rendering
• Texture mapping and rasterisation (Wikipedia)