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232 lines
14 KiB
Markdown
232 lines
14 KiB
Markdown
<img align="left" alt="" src="logo.png" height="150" />
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# [Vulkano](https://vulkano.rs)
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[](https://github.com/vulkano-rs/vulkano/actions?query=workflow%3ARust)
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[](https://discord.gg/bncB9W2VDV)
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[](https://vulkano.rs/)
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<br/>
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[](https://crates.io/crates/vulkano)
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[](https://crates.io/crates/vulkano-shaders)
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[](https://crates.io/crates/vulkano-util)
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[](https://crates.io/crates/vulkano-win)
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<br/>
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[](https://docs.rs/vulkano)
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[](https://docs.rs/vulkano-shaders)
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[](https://docs.rs/vulkano-util)
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[](https://docs.rs/vulkano-win)
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Vulkano is a Rust wrapper around [the Vulkan graphics API](https://www.khronos.org/vulkan/).
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It follows the Rust philosophy, which is that as long as you don't use unsafe code you shouldn't
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be able to trigger any undefined behavior. In the case of Vulkan, this means that non-unsafe code
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should always conform to valid API usage.
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What does vulkano do?
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- Provides a low-levelish API around Vulkan. It doesn't hide what it does but provides some
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comfort types.
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- Plans to prevent all invalid API usages, even the most obscure ones. The purpose of Vulkano
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is not to simply let you draw a teapot, but to cover all possible usages of Vulkan and detect all
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the possible problems in order to write robust programs. Invalid API usage is prevented thanks to
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both compile-time checks and runtime checks.
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- Can handle synchronization on the GPU side for you (unless you choose to do that yourself), as this
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aspect of Vulkan is both annoying to handle and error-prone. Dependencies between submissions are
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automatically detected, and semaphores are managed automatically. The behavior of the library can
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be customized thanks to unsafe trait implementations.
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- Tries to be convenient to use. Nobody is going to use a library that requires you to browse
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the documentation for hours for every single operation.
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### Comparison
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Comparison to other well-known Graphics APIs in Rust ecosystem.
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| Name | Open-sourced Since | API Level | Notable Features |
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| ---- | ------------------ | --------- | ------------- |
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| Vulkano | March, 2016 | High-level Rust API wrapping Vulkan APIs. | Type-safe compile-time shaders. Transparent interoperability with glsl and spir-v shader code types in Rust code. Automatically generated types for shader's Layout. |
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| [Wgpu](https://github.com/gfx-rs/wgpu) | May, 2019 | High-level Rust API with multiple backends. | Supports multiple backends: Vulkan, Metal, DirectX, WebGPU, and other. Follows WebGPU specification. With async/await API. |
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| [Miniquad](https://github.com/not-fl3/miniquad) | March, 2020 | High-level minimalistic Rust API with multiple backends. | Relatively minimalistic API well suited for small to medium graphics projects. Supports multiple backends, including browser target. |
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| [Sierra](https://github.com/zakarumych/sierra) | March, 2021 | High-level Rust API for Vulkan/Metal APIs. | Layouts, Descriptors and shader Types construction in Rust code through the macro system. Built on top of [Erupt](https://gitlab.com/Friz64/erupt). Supports Ray Tracing Pipeline. |
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| [Glium](https://github.com/glium/glium) | October, 2014 | High-level Rust API wrapping OpenGL | OpenGL only. |
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| [Ash](https://github.com/MaikKlein/ash) | August, 2016 | Low-level API for Vulkan. | Unsafe Vulkan API bindings. |
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| [Erupt](https://gitlab.com/Friz64/erupt) | April, 2020 | Low-level API for Vulkan. | Unsafe Vulkan API bindings. |
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Please note that by the current date none of the known projects in the ecosystem(including Vulkano)
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reached stable release versions and the final design goals, their APIs are changing from time
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to time in a breakable way too, and there could be bugs and unfinished features too.
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However, most of the projects mentioned above are already established definitive structures, all
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feature breaking changes will likely be straightforward to fix in user code, and most of them
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are maintained. As such we can recommend using any of them in the 3rd party code.
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The choice depends on the end project's goals and requirements, and we recommend examining
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their actual set of features and API capabilities beforehand.
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### Projects using Vulkano
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We started collecting this list just recently and it would be appreciated if you help us by
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contributing(opening a PR) into [README.md](https://github.com/vulkano-rs/vulkano/blob/master/README.md).
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| Project Name | Description |
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| ------------ | ----------- |
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| [Basalt](https://github.com/AustinJ235/basalt) | GUI framework for Desktop applications |
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| [Ferret](https://github.com/Rua/ferret) | Doom-compatible game engine |
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| [Sandbox](https://github.com/hakolao/sandbox) | 2D Pixel Physics Simulator |
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| [Egui Winit Vulkano](https://github.com/hakolao/egui_winit_vulkano) | Vulkano integration with Egui |
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| [VideowindoW](https://www.videowindow.eu/) | Uses Vulkano under the hood to enable asynchronous video stream compositing |
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| [Korangar](https://github.com/vE5li/korangar) | A Vulkan based Ragnarok Online client |
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| [Krnl](https://github.com/charles-r-earp/krnl) | Safe, portable, high performance compute (GPGPU) kernels. |
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| [Vera](https://github.com/Coddeus/vera) | Animation engine scripted in Rust. |
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We would love to help you keep your project in sync with the most recent changes in Vulkano
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if you give us feedback by adding your project to this list.
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Thanks in advance!
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## Documentation and Resources
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To get started you are encouraged to use the following resources:
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- The [examples](https://github.com/vulkano-rs/vulkano/tree/master/examples) folder in this repository.
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- [docs.rs](https://docs.rs/vulkano) - Full Vulkano API documentation
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- The guide on [vulkano.rs](https://vulkano.rs/introduction/introduction) - Starts with trivial compute
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examples (~50 lines of code) and then works up to rendering triangles and mandelbrots.
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The guide is currently outdated a little. We are planning to update it in the future, but it's
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a good place to start understanding the base building blocks of Vulkano API.
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- Github [Issues](https://github.com/vulkano-rs/vulkano/issues) - Raise a topic, ask a question
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or report a bug. The new topics there are watched regularly by maintainers and other
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community users.
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- Gitter [Chat](https://gitter.im/vulkano-rs/Lobby) - Another place to raise a question. However,
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the chat is not maintained regularly at this moment. Better use Github Issues for this purpose.
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## Contributing
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Contributions are very welcome! Feel free to submit pull requests, to open questions and topics
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in the [Issues](https://github.com/vulkano-rs/vulkano/issues) section.
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The project was initially developed by Pierre Krieger(Tomaka), who established Vulkano's base
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design goals, and the code structure. In the meantime, development is driven by Vulkano
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community members.
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**New Pull Requests are usually scheduled for review by the end of each week.**
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The older PRs that are already in review have priority over the new ones. We are trying to push
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development forward as quick as possible, but the review process sometimes takes time,
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please be patient as the maintainers need time to check everything properly.
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If something needs to get promoted urgently, please ping current Vulkano
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maintainer([@Eliah-Lakhin](https://github.com/Eliah-Lakhin/)) in the PR's
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or Issue's comments.
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If your change adds, removes or modifies a trait or a function, please
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specify changelog entries **in the Pull Request description**(not in the changelog file directly).
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They will be transferred to the changelog right after the PR merge.
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Every PR must pass tests in order to be merged to `master`.
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Minor releases are usually happening between 1 to 3 months averagely depending on grow
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of unreleased and breaking changes in `master`
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### Repository Structure
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This repository contains four libraries:
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- `vulkano` is the main one.
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- `vulkano-shaders` provides the `shader!` macro for compiling glsl shaders.
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- `vulkano-util` provides a variety of utility functions to streamline certain common operations such as device and swapchain creation.
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- `vulkano-win` provides a safe link between vulkano and the `winit` library which can create
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a window to render to.
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In order to run tests, run `cargo test --all` at the root of the repository. Make sure your Vulkan
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driver is up to date before doing so.
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### Hall of Fame
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We would love to mention some members, who put significant contributions to this project:
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- Pierre Krieger. The initial developer. [Patreon page](https://www.patreon.com/tomaka).
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- Lucas Kent. Maintainer. [Patreon page](https://www.patreon.com/rukai).
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- Austin Johnson. Maintainer. [Patreon page](https://www.patreon.com/austinj235).
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- Rua. An active developer, who put a lot of effort to improve Vulkano and constantly keeping it up to date.
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- **You!** Thanks to your help, contributions, improvements, bug reports and user experience
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to make this project one of the major Rust graphics API library in Rust!
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## Setup and Troubleshooting
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Vulkano uses [shaderc-rs](https://github.com/google/shaderc-rs) for shader compilation. Refer to shaderc-rs documentation to provide a pre-built libshaderc for faster build times.
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Note that in general vulkano does **not** require you to install the official Vulkan SDK. This is
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not something specific to vulkano (you don't need the SDK to write programs that use Vulkan, even
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without vulkano), but many people are unaware of that and install the SDK thinking that it is
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required. However, macOS and iOS platforms do require a little more Vulkan setup since it is not
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natively supported. See below for more details.
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Unless you provide libshaderc, in order to build libshaderc with the shaderc-sys crate, the following tools must be installed and available on `PATH`:
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- [CMake](https://cmake.org/)
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- [Ninja](https://ninja-build.org/) Is optional except when building with MSVC. It may speed up build time for libshaderc.
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- [Python](https://www.python.org/) (works with both Python 2.x and 3.x, on windows the executable must be named `python.exe`)
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These requirements can be either installed with your favourite package manager or with installers
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from the projects' websites. Below are some examples of ways to set up.
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### windows-msvc Specific Setup
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1. `rustup default stable-x86_64-pc-windows-msvc`
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2. Install [Build Tools for Visual Studio 2017](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2017). If you have already been using this toolchain then its probably already installed.
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3. Install [msys2](https://www.msys2.org/), following ALL of the instructions.
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4. Then in the msys2 terminal run: `pacman --noconfirm -Syu mingw-w64-x86_64-cmake mingw-w64-x86_64-python2 mingw-w64-x86_64-ninja`
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5. Add the msys2 mingw64 binary path to the PATH environment variable.
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### Windows-gnu Specific Setup
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windows-gnu toolchain is not supported but you can instead cross-compile to windows-gnu from windows-msvc
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Steps 1 and 2 are to workaround https://github.com/rust-lang/rust/issues/49078 by using the same mingw that rust uses.
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1. Download and extract https://s3-us-west-1.amazonaws.com/rust-lang-ci2/rust-ci-mirror/x86_64-6.3.0-release-posix-seh-rt_v5-rev2.7z
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2. Add the absolute path to mingw64\bin to your PATH environment variable. (This path needs to be before the msys2 path)
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3. Run the command: `rustup default stable-x86_64-pc-windows-msvc`
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4. Run the command: `rustup target install x86_64-pc-windows-gnu`
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5. Install [Build Tools for Visual Studio 2017](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2017). If you have already been using this toolchain then it's probably already installed.
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6. Install [msys2](https://www.msys2.org/), following ALL of the instructions.
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7. Then in the msys2 terminal run: `pacman --noconfirm -Syu mingw64/mingw-w64-x86_64-pkg-config mingw-w64-x86_64-gcc mingw-w64-x86_64-cmake mingw-w64-x86_64-make mingw-w64-x86_64-python2 mingw-w64-x86_64-ninja`
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8. Add the msys2 mingw64 binary path to the PATH environment variable.
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9. Any cargo command that builds the project needs to include `--target x86_64-pc-windows-gnu` e.g. to run: `cargo run --target x86_64-pc-windows-gnu`
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### Linux Specific Setup
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Use your package manager to install the required dev-tools and Vulkan drivers
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For example on ubuntu:
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```
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sudo apt-get install build-essential git python cmake libvulkan-dev vulkan-utils
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```
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On arch based system
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```
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sudo pacman -Sy base-devel git python cmake vulkan-devel --noconfirm
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```
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### macOS and iOS Specific Setup
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Vulkan is not natively supported by macOS and iOS. However, there exists [MoltenVK](https://github.com/KhronosGroup/MoltenVK)
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an open-source Vulkan implementation on top of Apple's Metal API. This allows vulkano to build and run on macOS
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and iOS platforms.
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The easiest way to get vulkano up and running with MoltenVK is to install the
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[Vulkan SDK for macOS](https://vulkan.lunarg.com/sdk/home). There are [installation instructions](https://vulkan.lunarg.com/doc/sdk/latest/mac/getting_started.html) on the LunarG website.
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On iOS, vulkano links directly to the MoltenVK framework. There is nothing else to do besides
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installing it. Note that the Vulkan SDK for macOS also comes with the iOS framework.
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## License
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Licensed under either of
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- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
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https://www.apache.org/licenses/LICENSE-2.0)
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- MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
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at your option.
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### Contribution
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Unless you explicitly state otherwise, any contribution intentionally submitted
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for inclusion in the work by you shall be dual licensed as above, without any
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additional terms or conditions.
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