How to integrate imgui-rs with wgpu for rendering?

Use the community-maintained imgui-wgpu crate, but check its compatibility with your imgui-rs version, as it might not be up-to-date. Follow the crate's examples to set up the renderer with your wgpu context and backend platform.

imgui-rs or egui: which is better for Rust GUI development?

imgui-rs is ideal if you need Dear ImGui's mature ecosystem or are porting C++ tools, offering safety bindings and flexibility. egui is a pure Rust immediate mode GUI with easier setup but fewer backends; choose based on integration needs and familiarity.

How to handle input events like mouse clicks in imgui-rs?

Input handling is managed by the backend platform crate, such as imgui-winit-support, which translates OS events from winit or SDL2 into imgui-rs state. Ensure your backend is initialized and passes events correctly in the main loop.

Is imgui-rs production-ready for commercial applications?

Yes, with caveats: it's stable and widely used in Rust tools, but you must manage backend and renderer compatibility, and be prepared for occasional API gaps or updates to the MSRV, which is currently Rust 1.82.

How to add custom fonts using freetype in imgui-rs?

Enable the optional freetype feature in the imgui crate via Cargo.toml, then use the font APIs to load and configure fonts. Refer to the docking branch support for advanced layout features, but note this may require additional setup.

What's the performance impact of using imgui-rs vs native Dear ImGui?

imgui-rs adds minimal overhead due to safe Rust wrappers, but performance depends heavily on your chosen renderer and backend. For most real-time tools, it's negligible, but profile with your specific setup for critical applications.

Open-Awesome

imgui-rs

Apache-2.0Rustv0.12.0

Rust bindings for Dear ImGui, enabling immediate mode GUI development in safe Rust.

GitHub

3.0k stars386 forks0 contributors

What is imgui-rs?

imgui-rs is a Rust binding library for Dear ImGui, enabling developers to build immediate mode graphical user interfaces in Rust. It provides safe, high-level APIs to create real-time UIs for applications such as game development tools, debug overlays, and configuration panels. The library abstracts the underlying C++ Dear ImGui library while maintaining performance and flexibility.

Target Audience

Rust developers working on applications that require dynamic, real-time user interfaces, such as game engine tools, simulation debuggers, or embedded system dashboards.

Value Proposition

Developers choose imgui-rs for its safe Rust API, extensive backend flexibility, and seamless integration with popular graphics and windowing libraries, making it the go-to solution for immediate mode GUI development in the Rust ecosystem.

Overview

Rust bindings for Dear ImGui

Use Cases

Best For

Building real-time debugging interfaces for game engines
Creating tooling and editor UIs for Rust applications
Developing embedded system dashboards with immediate feedback
Prototyping GUI applications rapidly in Rust
Integrating Dear ImGui into Rust-based graphics projects
Adding configurable overlay UIs to simulations or visualizations

Not Ideal For

Projects requiring polished, static UIs with extensive CSS-like styling and complex layouts
Teams targeting web or mobile platforms where desktop-focused backends like winit or SDL2 are unsupported
Developers seeking a monolithic, batteries-included GUI framework without managing multiple crates for backends and renderers

Pros & Cons

Pros

Safe Rust API

Provides high-level bindings that maintain Rust's safety guarantees, reducing unsafe code usage compared to direct C++ integration, as highlighted in the README's focus on safety.

Flexible Backend Support

Officially supports winit and SDL2 platforms, plus community renderers for wgpu and D3D12, allowing customization across different graphics APIs and OS environments.

Ergonomic Builder Pattern

Uses builder structs for optional parameters, improving code readability and ergonomics over Dear ImGui's C++ style, as demonstrated in the example code.

Renderer Agnostic Design

Not tied to any specific graphics API; works with glow, wgpu, gfx, and custom implementations, enabling integration into diverse Rust graphics projects.

Cons

Incomplete API Coverage

The README admits that API coverage is not 100% and is improving over time, which may limit access to some Dear ImGui features or require workarounds.

Complex Multi-Crate Setup

Requires separate selection and integration of backend and renderer crates (e.g., imgui-winit-support plus imgui-glow-renderer), adding initial configuration overhead compared to all-in-one solutions.

Community Maintenance Risks

Relies on community renderers like imgui-wgpu that may be outdated or deprecated, as noted in the README's list of unsupported or legacy options.

Frequently Asked Questions

Related Projects

Tauri

Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

Fullstack app framework for web, desktop, and mobile.

A cross-platform GUI library for Rust, inspired by Elm

egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native

Stars28,834

Forks2,018

Last commit2 days ago

Community-curated · Updated weekly · 100% open source

Found a gem we're missing?

Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.

Submit a project Star on GitHub

imgui-rs

Apache-2.0Rustv0.12.0

Rust bindings for Dear ImGui, enabling immediate mode GUI development in safe Rust.

GitHub

3.0k stars386 forks0 contributors

What is imgui-rs?

Target Audience

Rust developers working on applications that require dynamic, real-time user interfaces, such as game engine tools, simulation debuggers, or embedded system dashboards.

Value Proposition

Overview

Rust bindings for Dear ImGui

Use Cases

Best For

Building real-time debugging interfaces for game engines
Creating tooling and editor UIs for Rust applications
Developing embedded system dashboards with immediate feedback
Prototyping GUI applications rapidly in Rust
Integrating Dear ImGui into Rust-based graphics projects
Adding configurable overlay UIs to simulations or visualizations

Not Ideal For

Projects requiring polished, static UIs with extensive CSS-like styling and complex layouts
Teams targeting web or mobile platforms where desktop-focused backends like winit or SDL2 are unsupported
Developers seeking a monolithic, batteries-included GUI framework without managing multiple crates for backends and renderers

Pros & Cons

Pros

Safe Rust API

Provides high-level bindings that maintain Rust's safety guarantees, reducing unsafe code usage compared to direct C++ integration, as highlighted in the README's focus on safety.

Flexible Backend Support

Officially supports winit and SDL2 platforms, plus community renderers for wgpu and D3D12, allowing customization across different graphics APIs and OS environments.

Ergonomic Builder Pattern

Uses builder structs for optional parameters, improving code readability and ergonomics over Dear ImGui's C++ style, as demonstrated in the example code.

Renderer Agnostic Design

Not tied to any specific graphics API; works with glow, wgpu, gfx, and custom implementations, enabling integration into diverse Rust graphics projects.

Cons

Incomplete API Coverage

The README admits that API coverage is not 100% and is improving over time, which may limit access to some Dear ImGui features or require workarounds.

Complex Multi-Crate Setup

Community Maintenance Risks

Relies on community renderers like imgui-wgpu that may be outdated or deprecated, as noted in the README's list of unsupported or legacy options.