Golias Engine

Golias Engine is a lightweight and modular 2D/3D game engine/framework written in C/C++, designed to be * simple yet powerful*.

⚠️ Note: Currently there is no Editor and one is unlikely to exist in the future.
Golias focuses on code-driven development, cross-platform compatibility, and learning.

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Rendering Backends & Supported Platforms

Renderer Backend	Status
OpenGL 3.3 / OpenGLES 3.0	✅ Fully supported
Metal	🚫 No ETA
Vulkan	🚫 No ETA
Direct3D 12	🚫 No ETA
Proprietary APIs	🚫 No ETA

Platform	Category	Notes	Status
Windows	Desktop		✅
Linux	Desktop		✅
macOS	Desktop		✅
Android	Mobile		✅
iOS	Mobile		✅
Web	Web	WebAssembly / WebGL	✅
Xbox	Console	This platform requires NDA	🚫
PlayStation	Console	This platform requires NDA	🚫
Nintendo	Console	This platform requires NDA	🚫

⚠️ Note: Proprietary APIs for consoles are not publicly available and thus cannot be implemented or tested.

Key Features

3D Features

• Model Loading
• PBR (Physically Based Rendering) SIMPLIFIED
• Blinn-Phong Shading Model
• Skybox Reflections IBL (Image Based Lighting)
• Frustum Culling
• Normal mapping (TBN calculated per fragment)
• 3D Physics (Bullet Physics)
• Lighting System
  • Directional Light
  • Point Light
  • Spotlight
• Shadow Mapping
  • CSM (Cascaded Shadow Maps) for Directional Lights
• Post-Processing Effects (Bloom, HDR, SSAO, Motion Blur, etc.)
• Animation System (Animation)
  • Skeletal Animation CPU & GPU Skinning
  • Hierarchical Animation
• Level of Detail (LOD) Support
• Skybox Support (Cubemap -> 6 faces & Equirectangular)

2D Features

• Tilemap Support (Orthogonal, Isometric)
• 2D Physics (Box2D)

General Features

• Sprite Rendering
• Text/Shaping Rendering (TrueType fonts and Emojis)
• Audio System
• Particle System (CPU & GPU)
• Cross-Platform Unified Rendering Pipeline by Design
• Custom Shader Language based on GLSL
• Web (WASM) Support
• Native Support: Windows, Linux, macOS, Android, iOS and Web
• GameObject / Entity Component System (ECS)
• Scripting Support (Lua)
• UI Canvas System (SCREEN/WORLD space)
  • Text
  • Button
  • Image
  • Slider
  • Panel
• Networking Module (ENET)
• Batched Rendering

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Supported File Formats

Asset Type	Supported Formats
3D Models	OBJ, GLTF, FBX, GLB
Images	PNG, JPEG, BMP, TGA, DDS, ETC.
Fonts	TTF & OTF.
Audio	OGG, WAV, FLAC, MP3, ETC.
Scenes	JSON

Engine Core Architecture

⚠️ Note: This diagram is a work in progress and may not reflect the current state of the engine.

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📚 Documentation & Examples

• Official Documentation
• Examples
• Tests

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Building from Source

Please refer to the BUILDING.md file for detailed instructions on how to build Golias Engine from source on various platforms.

Third-Party Libraries Used

Library	Description	License
GLFW	Windowing, input/events handling, and desktop platform abstraction	Zlib License
GLM	Header-only mathematics library for graphics (vectors, matrices, quaternions)	MIT License
Bullet Physics	Real-time 3D physics simulation	Zlib License
tinygltf	Lightweight glTF 2.0 parsing library	MIT License
tinyobjloader	Wavefront OBJ loader	MIT License
stb_image	Header-only image loading (PNG, JPG, TGA, etc.)	Public Domain / MIT
miniaudio	Header-only audio playback and capture library	Public Domain / MIT
stb_truetype	Font rasterization engine	Public Domain / MIT
nlohmann/json	Modern C++ JSON serialization/deserialization	MIT License
glad	OpenGL / OpenGL ES function loader	MIT License

All third-party libraries are vendored as git submodules or included directly in the thirdparty/ directory.

License

This project is licensed under the MIT License - see the LICENSE file for details.