Luz Engine

A Vulkan engine that I'm developing to study and implement modern rendering techniques used by AAA games.

• Videos on Youtube
• Features
• How to build and run
• References and credits

Features

• Complete Vulkan Wrapper (including BLAS and TLAS creation)
• 3 Approaches for Volumetric Light: Froxels, Polygon Mesh and Screen Space
• Temporal Anti-Aliasing
• Shadow Maps
• Atmospheric Scattering
• Scene Serialization (JSON)
• Deferred Rendering
• Real-time ray traced shadows and ambient occlusion
• PBR Shading with metallic, roughness, normal, ambient occlusion and emission
• Vulkan bindless resources
• Viewport camera with perspective and orthographic projections and fly and orbit controls
• ImGui docking UI

Gallery

• Froxel Based Volumetric Light

• Polygonal Mesh Volumetric Light

• Screen Space Volumetric Light

• Deferred Rendering (Light, Albedo, Normal, Material, Emissive and Depth)

• Ray traced shadows and ambient occlusion

• PBR Shading and glTF models

• Textures drag and drop

Requirements

• A GPU that supports VK_KHR_ray_query extension (list of supported GPUs)
• C++17 compiler. Tested with `Visual Studio 2019, Clang and GCC
• CMake 3.7 or higher
• Vulkan SDK

For Linux

This project uses the GLFW library, to compile it under Linux with X11 (like the default Ubuntu 20.04) you will need:

sudo apt-get install xorg-dev

If you are using another window manager (like Wayland) you can check the dependencies here.

Build and Run

git clone --recursive https://github.com/hadryansalles/Luz
cd Luz
mkdir build
cmake . -Bbuild
cmake --build build --parallel 4
./bin/Luz

• Visual Studio: open build/Luz.sln and compile/run the project Luz`.

• GLFW used to open the application window
• glm used as the math library
• ImGui used to make the user interface
• ImGuizmo used to create 3D gizmos
• spdlog used as the logging library
• stb_image used to load image files
• tiny_obj_loader used to load wavefront .obj files
• optick used to profile the engine
• pbr-sky used as reference for atmospheric sky model