Immediate-mode GUI framework for .NET 10, using a Vulkan renderer with a Windows-native platform backend.

Current package version: 0.2.2-preview

• 한국어 문서: README.ko.md
• Version history: docs/version-history.md · 한국어
• Duxel agent reference: docs/duxel-agent-reference.md · 한국어

• Immediate-mode widget API (UiImmediateContext) with UiScreen.Render(...) lifecycle.
• Vulkan backend with profile-based defaults (Display / Render) and configurable MSAA.
• Windows-native window/input backend (keyboard, mouse, wheel, IME, clipboard).
• NativeAOT-friendly runtime patterns.
• UI DSL (.ui) parser/runtime and source-generator path.

Create hello.cs:

#:property TargetFramework=net10.0
#:property platform=windows
#:package Duxel.$(platform).App@*-*

using Duxel.App;
using Duxel.Core;
using Duxel.Windows.App;

DuxelWindowsApp.Run(new DuxelAppOptions
{
    Window = new DuxelWindowOptions { Title = "Hello Duxel" },
    Screen = new HelloScreen()
});

public sealed class HelloScreen : UiScreen
{
    public override void Render(UiImmediateContext ui)
    {
        ui.BeginWindow("Hello");
        ui.Text("Hello, Duxel!");
        ui.EndWindow();
    }
}

Run:

dotnet run hello.cs

If you want to see Duxel beyond a hello-world window, start with these representative FBA samples:

• samples/fba/all_features.cs — the broad widget gallery with typography, layout, popup/context, input diagnostics, item state, multi-select, layers, drawing, image, and markdown showcase windows, now opening Markdown Studio on first launch instead of a blank surface.
• samples/fba/ui_mixed_stress.cs — a balanced multi-window showcase that fills the screen with controls, forms, long lists, data tables, text rendering, and a dense canvas stress area.
• samples/fba/Duxel_perf_test_fba.cs — a polygon stress-test sample with live controls for VSync, MSAA, cache toggles, polygon settings, and profile-oriented renderer checks.

The screenshot above was captured from all_features.cs, which now opens the Markdown Studio surface on first launch while the menu bar still exposes the wider component gallery.

The screenshot above was captured from ui_mixed_stress.cs, a representative FBA sample that shows how Duxel can compose several tool-style windows, high-volume lists and tables, and custom drawing in a single frame.

The performance screenshot was captured from Duxel_perf_test_fba.cs with a higher initial polygon count so the stress scene is visible immediately.

• Project sample: samples/Duxel.Sample
  • dotnet run --project samples/Duxel.Sample/
• FBA samples: samples/fba/*.cs
  • dotnet run samples/fba/all_features.cs
  • ./run-fba.ps1 samples/fba/all_features.cs (local project reference; NativeAOT by default)
  • all_features.cs now opens Markdown Studio by default and still includes dedicated typography, layout, popup/context, input-query, item-status, multi-select, and layer/animation showcase windows.

Duxel supports declarative .ui files (indent-based tree) and runtime/state bindings.

• DSL reference: docs/ui-dsl.md · 한국어
• Agent reference: docs/duxel-agent-reference.md · 한국어
• FBA getting started: docs/getting-started-fba.md · 한국어
• FBA reference guide: docs/fba-reference-guide.md · 한국어
• FBA sample catalog: docs/fba-run-samples.md · 한국어
• Custom widgets: docs/custom-widgets.md · 한국어
• Design notes (Korean): docs/design.ko.md
• Optimization policy (Korean): docs/optimization-policy.ko.md

dotnet build Duxel.slnx -c Release

MIT