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https://vsg-dev.github.io/VulkanSceneGraph

Vulkan & C++17 based Scene Graph Project
https://vsg-dev.github.io/VulkanSceneGraph

android best-practices cpp17 cppcoreguidelines linux macos scenegraph vulkan windows

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Vulkan & C++17 based Scene Graph Project

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README 

        
![VulkanSceneGraph](https://raw.githubusercontent.com/vsg-dev/VulkanSceneGraph/master/docs/images/VSGlogo.png)



VulkanSceneGraph (VSG), is a modern, cross platform, high performance scene graph library built upon [Vulkan](https://www.khronos.org/vulkan/) graphics/compute API. The software is written in [C++17](https://en.wikipedia.org/wiki/C%2B%2B17), and follows the [CppCoreGuidelines](https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines) and [FOSS Best Practices](https://github.com/coreinfrastructure/best-practices-badge/blob/master/doc/criteria.md).  The source code is published under the [MIT License](LICENSE.md), with the exception of [vulkan.h](include/vsg/vk/vulkan.h), used for Vulkan extensions, which is under [Apache License 2.0](LICENSE.Vulkan-Headers.md).



This repository contains C++ headers and source and CMake build scripts to build the libvsg library.  Additional support libraries and examples are provided in separate repositories, links to these are provided below.  The software currently builds under Linux (desktops variants through to Jetson & Raspberry Pi), Windows (VisualStudio, MinGW & Cygwin), Android, and macOS & iOS (using [MoltenVk](https://github.com/KhronosGroup/MoltenVK)).



## Links to further information



The [vulkanscenegraph.org website](https://www.vulkanscenegraph.org) provides a detailed list of features, tutorials and reference documentation, while this repository provides the source code and build support for creating the VulkanSceneGraph library. Quick links to resources hosted on the website:

* [Features](https://vsg-dev.github.io/vsg-dev.io/features) - tour of features you'll find in the VulkanSceneGraph and companion projects.

* [Screenshots](https://vsg-dev.github.io/vsg-dev.io/screenshots) - screenshots from VulkanSceneGraph examples and 3rd party libraries and applications

* [Tutorials](https://vsg-dev.github.io/vsg-dev.io/tutorials) - mulit-part tutorial that takes you from introduction to scene graphs to multi-threading and optimization.

* [Documentation](https://vsg-dev.github.io/vsg-dev.io/documentation) - doxygen generated reference documentation and links to 3rd party learning materials

* [Discussion](https://github.com/vsg-dev/VulkanSceneGraph/discussions) - Discussion forum hosted on github.

* [Services](https://vsg-dev.github.io/vsg-dev.io/services) - List of companies connected to the VulkanSceneGraph project that can provide professional services



## Links to companion projects that offer additional features



Hosted as part of the [vsg-dev](https://github.com/vsg-dev):

* [vsgXchange](https://github.com/vsg-dev/vsgXchange) reading and writing of 3rd party images and 3d models and HTTP support.

* [vsgExamples](https://github.com/vsg-dev/vsgExamples) tests & examples.

* [osg2vsg](https://github.com/vsg-dev/osg2vsg) OpenSceneGraph integration library that enables converting of OSG to VSG scene graph and use of OpenSceneGraph loaders.

* [vsgImGui](https://github.com/vsg-dev/vsgImGui) ImGui integration enabling UI in graphics window.

* [vsgQt](https://github.com/vsg-dev/vsgQt) Qt integration with VulkanSceneGraph.

* [vsgPoints](https://github.com/vsg-dev/vsgPoints) 3d point cloud loading and rendering for VulkanSceneGraph with database paging support and scalability up to billions of points.

* [vsgUnity](https://github.com/vsg-dev/vsgUnity) plugin for Unity that provides export to native VulkanSceneGraph binary/ascii format.

* [MyFirstVsgApplication](https://github.com/vsg-dev/MyFirstVsgApplication) simple standalone VSG application that can be used as a template for your own applications.

* [vsgFramework](https://github.com/vsg-dev/vsgFramework) template project that uses CMake FetchContent to pull in all the main libraries associated with VulkanSceneGraph and dependencies and builds them together.



Community projects:

* [vsgSDL](https://github.com/ptrfun/vsgSDL) SDL integration with VulkanSceneGraph.

* [vsgvr](https://github.com/geefr/vsgvr) OpenVR integration with VulkanSceneGraph.

* [vsgCs](https://github.com/timoore/vsgCs) 3D Tiles and Cesium ion integration

* [vsgEarth](https://github.com/timoore/vsgEarth) osgEarth integration

* [rocky](https://github.com/pelicanmapping/rocky) 3D Geospatial Application Engine (Vulkan / C++17 / VSG). Pelican Mapping's successor to osgEerth.



## Quick Guide to building the VSG



### Prerequisites:

* Required: C++17 compliant compiler i.e. g++ 7.3 or later, Clang 6.0 or later, Visual Studio S2017 or later.

* Required: [CMake](https://www.cmake.org) 3.7 or later.

* Required: [Vulkan](https://vulkan.lunarg.com/) 1.1 or later.

* Optional : [glslang](https://github.com/KhronosGroup/glslang) 14.0 or later. Only required if shader compilation at runtime is needed.



The above dependency versions are known to work so they've been set as the current minimum, it may be possible to build against older versions.  If you find success with older versions let us know and we can update the version info.



While you can install Vulkan and glslang development libraries and headers from 3rd party repositoriesm these may be older, so for the latest versions you can also use the VulkanSDK provided by LunarG.  Your can download VulkanSDK from [LunarG](https://vulkan.lunarg.com/sdk/home), unpack into a local directory and set VULKAN_SDK environment variable to the include/lib directory within it.



### Command line build instructions:



To build and install the static libvsg library (.a/.lib) in source:



    git clone https://github.com/vsg-dev/VulkanSceneGraph.git

    cd VulkanSceneGraph

    cmake .

    cmake --build . -j 16 -t install



Full details on how to build the VSG (Unix/Windows/Android/macOS) can be found in the [INSTALL.md](INSTALL.md) file.