Gengine (Game Engine)

A code-oriented game engine designed to be efficient, extensible, and simple to use (not necessarily in that order). It is being developed mostly for fun, and maybe to eventually become a game. That means features will be lacking.

Features

• Voxel engine (see the Voxel Engine repo for more detail)
• Batch renderer
• ECS using EnTT
• Entity scripting
• Entity transformation hierarchy
• Model and texture loading
• Dynamic physics and collision API leveraging PhysX
• Quake-style console, with support for variables and commands

Graphics

• OpenGL 4.6-based renderer using modern overhead-reducing techniques
• GPU-driven particle system
• 4-channel flood fill voxel lighting
• HDR lighting, tonemapping, and automatic exposure adjustment
• FXAA
• Analytic fog
• Bloom inspired by CoD: AW
• Parallax-correct reflections

To Do

• Extend physics API with collision callbacks, filtering, etc.
• More graphical features like skeletal animation, better transparency, etc.
• ECS improvements based on gameplay needs
• General code cleanup and better dependency management

Dependencies

• assimp
• cereal
• Dear ImGui
• EnTT
• FastNoise2
• glad
• glfw
• glm
• PhysX
• shaderc
• stb_image
• zlib

License

A suitable license is yet to be chosen.

Gallery

Animated (click to view videos)

10 million snow particles at 95 FPS. Many small moving things does not compress well!
<img src="https://i.imgur.com/htkPK3F.jpeg" width="100%">
Lighting transition
<img src="https://i.imgur.com/bWX7zkQ.png" width="100%">
10k individually animated objects
<img src="https://i.imgur.com/o3pqRLt.jpg" width="100%">
Physics + particles
<img src="https://i.imgur.com/UQarRWT.jpeg" width="100%">

Non-animated (click to see full resolution)

Foggy day
<img src="https://i.imgur.com/dabcd7d.jpeg" width="100%"> Really foggy day
<img src="https://i.imgur.com/rblaEHo.jpeg" width="100%"> Big render 1
<img src="https://i.imgur.com/u1rw3W8.jpg" width="100%">
Big render 2
<img src="https://i.imgur.com/UPmzarG.jpg" width="100%">