Dear ImGui

Rabbet is a from-scratch C++ 3D game engine with a sparse-set entity-component system, versioned entity handles, dense component pools, and a system-and-resource runtime. Its OpenGL 4.1 renderer provides a forward path with metallic-roughness PBR, a Phong fallback, lighting and shadow maps, emissive surfaces, optional image-based lighting, post-processing, CPU particles, and heightmap or noise terrain. The Forge editor provides a dockable ImGui workspace around a render-to-texture viewport, asset thumbnails, hierarchy reparenting, click-to-pick, snapping gizmos, and Play/Pause/Step/Stop controls that snapshot and restore scenes. Assets use stable UUIDs and .import sidecars; models, textures, audio, materials, shaders, prefabs, and scenes are supported, with scenes stored as readable JSON. Lua behaviors run through sol2 with live hot-reload and inspector-editable fields, while physics uses Jolt rigidbodies and audio uses miniaudio. The repository includes the engine, editor, examples, and tests, including the Orb Hunt demo game. It uses CMake 3.24 or later and a C++20 compiler, supports macOS and Linux, fetches pinned dependencies during configuration, and is licensed under Apache License 2.0.

gpuix-svelte is an experimental Svelte custom renderer for GPUI, Zed's GPU-accelerated UI framework, distributed through @gpuix/native. It renders ordinary Svelte components into native desktop windows without a web view, while retaining Svelte component syntax, reactive state, scoped styles, and hot reload. The project includes demos for a counter, tic-tac-toe, Hacker News, and a liquid-glass control center, plus a browser target that renders the same components into a WebGPU canvas through GPUI's WebAssembly build. Its styling layer parses supported inline styles and class rules into GPUI's layout and paint properties rather than using a browser CSS engine. Supported behavior includes flex and grid layout, logical-pixel sizing, colors, typography, scrolling, hover and active states, CSS variables, portals, anchored overlays, keyboard and focus helpers, and custom components such as Scroller. The package also provides headless testing utilities that exercise GPUI's rendering, hit testing, input, and event pipeline. The repository is work in progress and requires an unreleased Svelte custom-renderer build bundled with the package. It supports Node.js and Bun, includes prebuilt native binaries, can compile examples into standalone executables for macOS, Linux, and Windows, and is licensed under MIT.

ComfyUI is an open-source AI content-creation engine and diffusion-model GUI, API, and backend developed by Comfy-Org. Its visual node-graph interface lets users build and reuse no-code workflows for image, video, audio, 3D, and text generation, editing, and processing, including workflows using diffusion models, VAEs, text encoders, LoRAs, ControlNets, adapters, and upscalers. Workflows can be saved and loaded as JSON, exposed through App Mode, or integrated into applications through local API endpoints. The engine supports asynchronous queueing, partial graph re-execution, VRAM and RAM management, model offloading, quantized models, custom nodes, and fully offline core operation unless optional resources are requested. It can run locally on Windows, Linux, and macOS through desktop, portable, or manual installations, with support for NVIDIA, AMD, Intel, Apple Silicon, and Ascend hardware. Comfy-Org also provides an official paid cloud version.

ThreeUI is a free, open-source, login-free catalog and React component library for interactive Three.js, WebGL, shader, and UI components. Its Community edition provides browsing, search, themes, responsive layouts, live renderers, controls, variant pickers, source-code tabs, and complete Community component source code, while excluding Pro and Beta components and authentication, checkout, and Pro implementation source. The public library can be installed from npm as @designcodeio/threeui and imported as React components with shared styles through the package root or component subpaths, or run locally with Vite from the repository. Components that render full HTML documents require runtime assets to be copied into the host application's public directory. Application code and Community component code are MIT licensed; bundled fonts use the SIL Open Font License 1.1 and bundled Three.js runtime files use the MIT license.