Imperium

Introduction

At the time being, this is just a skeleton of a multi-platform rendering engine.

Graphics techniques

What's done

• Advanced render graph.
  • Programmable via configuration file.
  • Built-in:
    • Deferred-rendering (Phong Shading)
    • Forward-rendering (Phong Shading and shadows)
• Crappy and awful Entity-Component-System.

What has to be done

• Advanced render graph.
  • Built-in:
    • Deferred-rendering (PBR and shadows)
• Basic skeleton animation.

API support

	Linux	Windows	Android
OpenGL ES 3.2	🚅	🚅	🚜
OpenGL 3.3	🚅	🚅	❎
OpenGL 4.6	🚂	🚂	❎
Vulkan	🚧	🚧	🚧
DirectX 11	❎	🚅	❎
DirectX 12	❎	🤞	❎

• 🚅 Run and build like a charm.
• 🚜 Run like a charm
• ❎ API not shippable.
• 🚂 Not complicated to do, but not the priority.
• 🚧 Don't hesitate to make a pull request lol.
• 🤞 It's a dream but we will get there!

(This repo is a Work-In-Progress. Due to last changes, the OpenGL 3.3 backend is the only working backend.)

Building

Before building on any platforms, make sure to fetch git submodules.

git clone https://github.com/vinhig/Imperium
cd Imperium
git submodule init
git submodule update

Android

Warning: completely broken.

Make sure you've installed NDK and Android SDK. glslangValidator has to be installed.

./gradlew installDebug

Linux

GLFW3 and glslangValidator are mandatory dependencies.

sudo apt install libglfw-dev glslang-dev glslang-tools # ubuntu 20.04
sudo pacman -S glfw glslang                            # arch linux/manjaro

mkdir build
cd build
cmake ..
./Imperium

Windows

vcpkg is used to retrieve dependencies.

You have to download glslangValidator and add it to your path.

(DirectX SDK doesn't have a vpckg package. You'll have to install it manually.)

vcpkg install glfw3
# clone repo and fetch submodules
mkdir build
cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE="C:\path\to\your\vcpkg\scripts\buildsystems\vcpkg.cmake"
MSBuild.exe Imperium.sln /property:Configuration=Release /property:Platform=x64
./Debug/Imperium.exe

Third party

This project makes heavy use of:

• https://github.com/nem0/OpenFBX
• https://github.com/g-truc/glm
• https://github.com/Dav1dde/glad
• https://github.com/KhronosGroup/SPIRV-Cross

A big thanks to them.

Screenshots