/Game-Engine

A standalone 3D game engine with an interactive world editor, real-time terrain & foliage editor, skinned animations, sprites, lights, and more.

Primary LanguageC++

Azul 3D

Game Engine Research Project at DePaul University.

Click to Watch an Overview of the Terrain & World Builder!

Watch the video

All Demos:

  1. Terrain & World Builder developed March to June 2024
  2. Game Object World Editor developed January to March 2024
  3. Animation System Overview September to November 2023

Main Contents:

  1. Standalone 3D Game Engine Core
  2. Interactive World Editor with Gizmos and GUI
  3. In-Engine Terrain Editor with GPU-based editing brushes

More Features

  1. Savable scenes and terrain assets for iterative design
  2. Skinned animations accelerated on the GPU
  3. Sprites, fonts, and text-string game objects
  4. Dynamic lighting system driven by light components
  5. Paintable foliage objects with optimized rendering for high density

Note

Developed & functional on Windows with Visual Studio. Large assets are stored with git LFS. This repo was developed on a Perfore server so the commit history here is only intermittent.

How to read

Engine Code

Source files are flat on disc under Engine/src.

Open Engine.sln which organizes the source files nicely with VS filters.

Interesting Sections

  1. Engine/src/Editor contains files related to the interactive world editor with widgets, scenes, and edit history.
  2. Engine/src/Terrain contains files related to the in-engine terrain editor and rendering system. This includes the GPU brush architecture, foliage system, and the quad tree data structure.
  3. Engine/src/Animation contains files related to skinned animations, powered by compute shaders.

Shaders

HLSL Shaders are under Engine/Shaders/Original.

  1. Engine/Shaders/Original/Graphics contains core graphics shaders
  2. Engine/Shaders/Original/Compute/Terrain Brushes contains GPU-based terrain editing brushes for sculpting and texture painting
  3. Engine/Shaders/Original/Compute/Animation contains compute shaders for processing skinned animations

Other Components

Asset Converter

Converter.sln converts raw assets for meshes, textures, and animations into a runtime format.

In-house Libraries

  1. Math: Optimized 3D Math Library
  2. PCSTree: Tree data structure for game object heirarchy
  3. Manager: Asset management and infrastructure library
  4. File: File IO wrapper

Save Data Directories

  1. Models/: contains raw assets
  2. Scenes/: contains JSON scene save files
  3. Terrains/: contains saved terrain assets created in the engine

Included dependencies:

  1. IMGUI: stored under GUI/ as a VS project
  2. RapidXML: under RapidXML
  3. Protobuf: wrapped with the ProtoBuf/ project
  4. DirectXTex: used in Engine.sln
  5. JSON: used in Engine.sln
  6. TinyGLTF: used in Converter.sln

Provided Resources

  1. Framework/: Grading framework
  2. Time/: Abstract time format library

How to run

  1. Open and run Converter.sln to populate Data/ directory with runtime models
  2. Open and run Engine.sln