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

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

Features

• [x] Model Loading
• [x] PBR (Physically Based Rendering) — Cook-Torrance GGX BRDF
  • [x] Metallic-Roughness workflow
  • [x] Albedo, Normal, Metallic-Roughness, AO, Emissive maps
  • [ ] Clear coat
  • [ ] Subsurface scattering
  • [ ] Parallax occlusion mapping
• [x] Blinn-Phong Shading Model
• [x] Skybox (Cubemap 6-face & Equirectangular)
• [x] IBL (Image-Based Lighting) — diffuse irradiance + specular environment
• [ ] Culling
  • [x] Frustum Culling
  • [ ] Occlusion Culling
• [x] Normal Mapping (TBN calculated per fragment)
• [x] 3D Physics (Bullet Physics)
  • [x] Rigid Bodies (Static, Dynamic, Kinematic)
  • [x] Collision Shapes (Box, Sphere, Capsule, Convex Hull, Triangle Mesh)
  • [x] Character Controller (capsule-based kinematic with stepping & jumping)
  • [ ] Soft Body Physics
  • [ ] Joints & Constraints
• [x] Lighting System
  • [x] Directional Light
  • [x] Point Light
  • [x] Spot Light
  • [ ] Area Light
  • [ ] Light Probes
  • [ ] Volumetric Lighting / Fog
• [x] Shadow Mapping
  • [x] CSM (Cascaded Shadow Maps) — 4 cascades, PCF 3×3 soft shadows
• [x] Screen Space Reflections (SSR) — Simplified binary screen-space ray marching (noisy)
• [x] Screen Space Ambient Occlusion (SSAO) — hemisphere kernel, 32 samples, blur pass
• [ ] Depth pre-pass - reduce overdraw
• [x] Post-Processing Pipeline
  • [x] Bloom — without up/downsampling (single-pass threshold + blur)
  • [x] SSAO — hemisphere kernel, 32 samples, blur pass
  • [x] FXAA — fast approximate anti-aliasing
  • [x] Tone Mapping — Reinhard, ACES, Uncharted2, AGX
  • [x] HDR Rendering — R16G16B16A16_FLOAT render targets, GLES3 fallback
  • [x] Gamma Correction
  • [ ] Color Grading
  • [ ] Depth of Field
  • [ ] Chromatic Aberration
  • [ ] Vignetting
  • [ ] Motion Blur
  • [ ] Temporal Anti-Aliasing (TAA)
• [x] Animation System
  • [x] Skeletal Animation — CPU & GPU skinning
  • [x] Hierarchical Animation
  • [ ] Blend Trees
  • [ ] Inverse Kinematics (IK)
• [ ] Level of Detail (LOD) Support
• [ ] Decal System
• [ ] Global Illumination
• [ ] Terrain System

General Features

• [x] Sprite Rendering
• [x] Text Rendering
  • [x] Truetype Font Support (FreeType)
  • [x] Bitmap Font Support
  • [x] Rich Text Support (color, size, font, etc.)
  • [x] Text Layout Engine (line breaking, alignment, kerning)
  • [ ] Multilingual Text Support (Unicode, RTL languages)
  • [ ] Emoji Support
• [x] Audio System (spatial & non-spatial, OGG/WAV/FLAC/MP3)
• [ ] Particle System (CPU & GPU)
• [x] Cross-Platform Unified Rendering Pipeline by design
• [x] Web (WASM) Support
• [x] Native Support: Windows, Linux, macOS, Android, iOS and Web
• [x] Entity Component System (ECS) (EnTT)
  • [x] Scene serialization / deserialization (Yaml)
  • [x] Prefab system
• [x] Custom Shader Language based on GLSL
• [ ] Scripting Support
  • [x] Native Scripting (c++)
  • [ ] Python Scripting (pocketpy)
• [x] UI Canvas System (SCREEN / WORLD space)
  • [x] Text
  • [x] Button
  • [x] Image
  • [x] Slider
  • [x] Panel
  • [x] Dropdown
  • [ ] Nine-Patch
  • [x] Rich Text
  • [ ] Layout Groups (Horizontal, Vertical, Grid)
  • [ ] InputTextField
• [ ] Networking Module
  • [ ] Client / Server architecture (ENet)
  • [ ] State synchronization
  • [ ] RPC (Remote Procedure Calls)
  • [ ] HTTP/s Requests (libcurl)
  • [ ] WebSocket Support (?)
• [ ] Instanced Rendering
• [ ] Job System / Multithreading

Supported File Formats

Engine Core Architecture

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

📚 Documentation & Examples

• Official Documentation
• Examples
• Tests

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

All third-party libraries are vendored as git submodules or included directly in the thirdparty/ directory, check their respective licenses for more details.

License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

⚠️ Disclaimer: This project is a personal endeavor and is not affiliated with any company or organization. It is intended for educational and experimental purposes only.