cxx-qt
bevy
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cxx-qt
- Cxx-Qt: Use Qt from Rust
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Qt 6.6 and 6.7 Make QML Faster Than Ever: A New Benchmark and Analysis
My employer, KDAB, is building an excellent Rust binding for Qt: https://github.com/KDAB/cxx-qt
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I like rust but want to use Qt.
You can use cxx-qt or qmetaobject-rs. Or use Slint
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Build a desktop app with Qt and Rust
Rust has several Qt bindings. The most popular are Ritual, CXX-Qt, and qmetaobject. Ritual is not maintained anymore, and qmetaobject doesn't support QWidgets. So CXX-Qt is our best bet for now.
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DAW Frontend Development Struggles
Qt bindings for Rust also exist, although I'm not sure how mature they are: https://github.com/KDAB/cxx-qt/
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Build a desktop app with Qt and Rust - LogRocket Blog
We're getting closer, but you're still likely to run into missing features in CXX-Qt at this point. If you do, please report it on GitHub!
- GUI development with Rust and GTK 4
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Who "owns" Rust ?
This is no longer required in CXX-Qt as of this week (https://github.com/KDAB/cxx-qt/pull/428). Next release coming soon.
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The first issue of Rust Magazine has been published 🎉🎉
From my understanding KDAB isn't trying to "replace" Qt. They're working on cxx-qt to make using Qt and Rust together much easier.
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Rust: State of GUI, December 2022 – KAS blog
I second this. I wrote an internal Qt/QML app that ran on Windows, Linux, Android, and Raspberry Pis. We had ~20 Raspberry Pi's running this app in kiosk mode. If only KDAB/cxx-qt[1] were ready there, I would have done as much as possible in rust .
- [1] https://github.com/KDAB/cxx-qt/
bevy
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Voronoi, Manhattan, random
Bevy. A very young engine where you need to write the game entirely in Rust—that was appealing. But fatal flaws overshadowed everything: no editor, the engine brutally enforces the ECS approach, and the game's architecture must literally bend to fit this paradigm. So, you won't migrate to another engine at all—you just throw away all the code and start from scratch.
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Web Game Engines and Libraries
Missing one of the best choices as long as "maturity" isn't on the top of your list: Bevy - https://bevyengine.org/
Game engine written in Rust, leveraging ECS in almost every place and way, with a really capable WASM export option. Wrestling ECS for the first time might take you some time, but in my experience helps you keep game code as clean and decoupled as game code could be.
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3D and 2D: Testing out my cross-platform graphics engine
I don't see WASM/WebGPU changing anything when it comes to gaming, as an industry, personally. 3d visualizations and interactive websites? Yeah definitely a nice improvement over WebGL 2, if years late.
WebGPU is pretty far behind what AAA games are using even as of 6 years ago. There's extra overhead and security in the WebGPU spec that AAA games do not want. Browsers do not lend themselves to downloading 300gb of assets.
Additionally, indie devs aren't using Steam for the technical capabilities. It's purely about marketshare. Video games are a highly saturated market. The users are all on Steam, getting their recommendations from Steam, and buying games in Steam sales. Hence all the indie developers publish to Steam. I don't see a web browser being appealing as a platform, because there's no way for developers to advertise to users.
That's also only indie games. AAA games use their own launchers, because they don't _need_ the discoverability from being on Steam. So they don't, and avoid the fees. If anything users _want_ the Steam monopoly, because they like the platform, and hate the walled garden launchers from AAA companies.
(I work on high end rendering features for the Bevy game engine https://bevyengine.org, and have extensive experience with WebGPU)
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What Are Const Generics and How Are They Used in Rust?
I was working through an example in the repo for the Bevy game engine recently and came across this code
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WebAssembly Playground
That's possible. I did spend quite a bit of time tinkering with compiler flags, and followed the recommendations.
Some notes I found just now seems to agree with my results, though: https://github.com/bevyengine/bevy/issues/3978#issuecomment-...
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Immediate Mode GUI Programming
I cannot recommend immediate mode GUI programming based on the limitations I've experienced working with egui.
egui does not support putting two widgets in the center of the screen: https://github.com/emilk/egui/issues/3211
It's really easy to get started with immediate mode, it's really easy to bust out some UI, but the second you start trying to involve dynamically resized context and responsive layouts -- abandon all hope. The fact it has to calculate everything in a single pass makes these things hard/impossible.
... that said, I'm still using it for https://ant.care/ (https://github.com/MeoMix/symbiants) because it's the best thing I've found. I'm crossing my fingers that Bevy's UI story (or Kayak https://github.com/StarArawn/kayak_ui) become significantly more fleshed out sooner rather than later. Bevy 0.13 should have lots more in this area though (https://github.com/bevyengine/bevy/discussions/9538)
- A minimal working Rust / SDL2 / WASM browser game
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ECS, Finally
I've also been enjoying building My First Gameâ„¢ in Bevy using ECS. The community around Bevy really shines, but Flecs (https://github.com/SanderMertens/flecs) is arguably a more mature, open-source ECS implementation. You don't get to write in Rust, though, which makes it less cool in my book :)
I'm not very proud of the code I've written because I've found writing a game to be much more confusing than building websites + backends, but, as the author notes, it certainly feels more elegant than OOP or globals given the context.
I'm building for WASM and Bevy's parallelism isn't supported in that context (yet? https://github.com/bevyengine/bevy/issues/4078), so the performance wins are just so-so. Sharing a thread with UI rendering suuucks.
If anyone wants to browse some code or ask questions, feel free! https://github.com/MeoMix/symbiants
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Intel CEO: 'The entire industry is motivated to eliminate the CUDA market'
These days, some game engines have done pretty well at making compute shaders easy to use (such as Bevy [1] -- disclaimer, I contribute to that engine). But telling the scientific/financial/etc. community that they need to run their code inside a game engine to get a decent experience is a hard sell. It's not a great situation compared to how easy it is on NVIDIA's stack.
[1]: https://github.com/bevyengine/bevy/blob/main/examples/shader...
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Trying to write a game with mods loaded at runtime
This is the API you need: https://github.com/bevyengine/bevy/pull/9774
What are some alternatives?
slint - Slint is a declarative GUI toolkit to build native user interfaces for Rust, C++, or JavaScript apps.
Amethyst - Data-oriented and data-driven game engine written in Rust
qt6ct - Qt6 Configuration Tool
Godot - Godot Engine – Multi-platform 2D and 3D game engine
crates.io - The Rust package registry
Fyrox - 3D and 2D game engine written in Rust
miniserve - 🌟 For when you really just want to serve some files over HTTP right now!
piston - A modular game engine written in Rust
gyroflow - Video stabilization using gyroscope data
RG3D - 3D and 2D game engine written in Rust [Moved to: https://github.com/FyroxEngine/Fyrox]
bonsai - A library for building dynamic webapps, using Js_of_ocaml
specs - Specs - Parallel ECS