Website: divide-studio.com

ToDo List: Trello.com/divide-todo

Twitter: Twitter.com/KIonutzR

Mastodon: peoplemaking.games/@KIonutzR

Yup, YAGE. Yet Another Game Engine. A toy engine, mind you, never intended for general release or something people will ever require support with. It is something I use to experiment on, learn new things, practice, prototype and eventually, try and ship a game or two with.

This code started during my first days in uni. The first iteration looked like this: Youtube link.

Next to no programming experience and it shows in the parts of code that survived since then (all the SceneNode and Resource stuff). Started with a lot of OOP and "Clean Code" with C++98 and currently developed using as much DoD as possible (basic structs and enums, inheritance mostly for interfaces or restrictions {NonCopyable, NonMovable, etc}) but with C++20 for ease of use (constexpr and concepts over templates, threading and filesystem builtin, lambdas over function pointers etc).

It got me through learning old-school OpenGL (1.x, 2.x), core GL (3.x, 4.x) and some AZDO techniques (indirect rendering, bindless textures, persistently mapped buffers, etc). Currently using it to learn Vulkan 1.3 (why would I learn about framebuffers, subpasses and renderpasses now? Maybe for mobile, but I don't see myself doing that now, and if I did, I'd learn that as required).

The reason it's published on GitHub are:

• so I can store the code somewhere central and keep track of changes.
• if people do as I do and search for various things (functions, enums, etc) on GitHub, maybe my code can help.
• if anyone is struggling with solving a problem that I already banged my head against, feel free to get inspired by it.

If you plan to use any parts of this code in a commercial product, a couple of things:

• Are you sure?
• Please let me know as I'm curious to see where and why and also, I'd highly appreciate it.

• Clone with recursive submodules (e.g. git clone --recurse-submodules). Needed for vcpkg.

• Open the root folder in VSCode (with CMake and C++ extensions installed).
• Under CMake Project Status view, select the desired Configure preset followed by the desired Build preset.
• Build and Run as needed.
• Works on both Windows and Linux.

• Engine / Game builds:
  • Open the root folder in Visual Studio (with CMake tools installed).
  • Select the desired preset from the Build Preset dropdown.
  • Build and Run as needed.
• Project Manager:
  • Same as above (VS/VSCode) but with the ProjectManager subfolder as a root.
  • Alternatively. RUN.bat will attempt to build a release version and launch that.
    • The Project Manager has an option to launch Visual Studio with the proper path set.

• Only tested the VSCode steps outlined above.

• ToDo

• OpenGL 4.6 (AZDO) renderer

• Experimental Vulkan renderer

• C++17/20

• Windows only (but with functional Linux platform code).

Framework Screenshot

Scene Manipulation Screenshot

Vulkan Rendering Backend

Day night cycle

Editor Grid

Sponza rendering

ImGUI Docking

SSR

Grass/Sky/Fog

If I accidentally breached any license, please open an issue and I will address it immediately.
I did try to comply with all of them, but I may have missed something.

• EASTL: https://github.com/electronicarts/EASTL
• SDL: https://github.com/libsdl-org
• {fmt}: https://github.com/fmtlib/fmt
• ECS: https://github.com/tobias-stein/EntityComponentSystem
• PhysX: https://github.com/NVIDIAGameWorks/PhysX
• ChaiScript: https://chaiscript.com
• Optick: https://github.com/bombomby/optick
• ReCast: https://github.com/recastnavigation/recastnavigation
• UI
  • CEGUI: http://cegui.org.uk
  • Dear ImGui: https://github.com/ocornut/imgui
  • ImGuizmo: https://github.com/CedricGuillemet/ImGuizmo
  • imgui_club: https://github.com/ocornut/imgui_club
  • ImGuiAl: https://github.com/leiradel/ImGuiAl
  • imguifilesystem: https://github.com/Flix01/imgui/tree/imgui_with_addons/addons/imguifilesystem
  • imguistyleserializer: https://github.com/Flix01/imgui/tree/imgui_with_addons/addons/imguistyleserializer
  • Node Editor in ImGui: https://github.com/thedmd/imgui-node-editor
  • fontstash: https://github.com/memononen/fontstash
  • IconFontCppHeaders: https://github.com/juliettef/IconFontCppHeaders
• Asset Management:
  • Open-Asset-Importer-Library: https://github.com/assimp/assimp
  • STB: https://github.com/nothings/stb
  • meshoptimizer: https://github.com/zeux/meshoptimizer
  • nvtt: https://github.com/castano/nvidia-texture-tool
  • Frexx CPP (C Preprocessor): https://github.com/bagder/fcpp
  • DevIL: https://openil.sourceforge.net
• OpenAL-soft: https://github.com/kcat/openal-soft
• OpenGL:
  • glbinding: https://github.com/cginternals/glbinding
  • OpenGL Immediate Mode for OpenGL 3.0: https://community.khronos.org/t/glim-opengl-immediate-mode-for-opengl-3-0/56957
• Vulkan:
  • glslang: https://github.com/KhronosGroup/glslang
  • SPIRV-Reflect: https://github.com/KhronosGroup/SPIRV-Reflect
  • VMA: https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator
  • vk-bootstrap: https://github.com/charles-lunarg/vk-bootstrap
  • Vulkan-Descriptor-Allocator: https://github.com/vblanco20-1/Vulkan-Descriptor-Allocator
• Memory Management:
  • Fixed Block Allocator: https://www.codeproject.com/Articles/1083210/An-efficient-Cplusplus-fixed-block-memory-allocato
  • Arena Allocator: https://www.codeproject.com/Articles/44850/Arena-Allocator-DTOR-and-Embedded-Preallocated-Buf
  • Memory Pool: https://github.com/cacay/MemoryPool
• moodycamel::ConcurrentQueue: https://github.com/cameron314/concurrentqueue
• Boost (for ASIO and faster regex + 3rd party libs) : https://www.boost.org
• cppGOAP: https://github.com/cpowell/cppGOAP
• CurlNoise: https://github.com/rajabala/CurlNoise
• Tileable Volume Noise: https://github.com/sebh/TileableVolumeNoise/
• simplefilewatcher: https://code.google.com/archive/p/simplefilewatcher/
• simpleini: https://github.com/brofield/simpleini
• GLM: https://github.com/g-truc/glm
• skarupke hash maps: https://github.com/skarupke
• Catch2: https://github.com/catchorg/Catch2
• various 3rd party parser libs:
  • freetype: https://freetype.org
  • freeimage: https://freeimage.sourceforge.io
  • libjpeg: https://libjpeg.sourceforge.net
  • libpng:http://www.libpng.org
  • libtiff: http://www.libtiff.org
  • zlib: https://zlib.net