--- title: "onerender docs" url: https://recursiveai.org/onerender/docs/ description: "Everything about OneRender: getting started, HTML to PDF and images, Razor, fonts and text, interactive pages and game hosts, rendered facts for…" version: "1.0.0" --- # onerender docs Everything about OneRender: getting started, HTML to PDF and images, Razor, fonts and text, interactive pages and game hosts, rendered facts for accessibility checks, how it is checked against Chrome, and the reference. ## Start - [Getting started](https://recursiveai.org/onerender/docs/getting-started/index.md): Install OneRender for .NET 10, render an HTML invoice to a PNG and to a tagged PDF without a browser, supply its style sheet and images from your own… - [Overview](https://recursiveai.org/onerender/docs/overview/index.md): An HTML and CSS layout and rendering engine for .NET, written from the specifications. HTML in (or a styled tree built in C#), pixels, a tagged PDF, or a… ## PDF and images - [PDF output](https://recursiveai.org/onerender/docs/pdf/index.md): The backend turns the retained display list (display-list.md, format 1.2) into a PDF with OnePdf core's writer. It never reaches back into layout… - [Razor components](https://recursiveai.org/onerender/docs/razor/index.md): RecursiveAI.OneRender.Razor renders a Razor component to a tagged PDF or to pixels in one call. It runs the component on .NET's HtmlRenderer, serves the… - [Fonts and text](https://recursiveai.org/onerender/docs/text/index.md): The service inline layout calls to turn computed font properties and text into shaped glyphs. It is independent of the box and fragment trees; layout… - [Layout conventions](https://recursiveai.org/onerender/docs/layout-conventions/index.md): Places where the specifications leave room, or where the engine follows what Chrome does and the specification text is looser. Each entry says what is… ## Interactive pages and games - [Game hosts](https://recursiveai.org/onerender/docs/game-hosts/index.md): A game engine that draws the display list with its own GPU renderer owns three things: the loop, the drawing, and the caches behind the drawing (glyph… - [The display list](https://recursiveai.org/onerender/docs/display-list/index.md): The display list is what the painter produces and every backend consumes: a flat, ordered, retained list of paint items for one frame or page. This… - [Forms and text editing](https://recursiveai.org/onerender/docs/forms/index.md): Form controls are laid out and painted the way Chrome 156 does by default, so boxes and pixels agree with it on the same fonts. This page is the normative… - [Transitions and animations](https://recursiveai.org/onerender/docs/animations/index.md): Normative notes for the behavior in Animation/ where the specifications leave room or the engine differs. The tests and the WPT replay are named in… ## Accessibility - [Rendered page facts](https://recursiveai.org/onerender/docs/accessibility-facts/index.md): RecursiveAI.OneRender.Accessibility lays a document out with the engine and returns OneHtml's RenderedFacts (format version 1) for it: the same facts… ## How it is checked - [Geometry against Chrome](https://recursiveai.org/onerender/docs/geometry-differential/index.md): Screen layout is checked against Chrome: for every page of a corpus set, every element's border box as Chrome lays it out is compared with the box our… - [Web Platform Tests](https://recursiveai.org/onerender/docs/wpt-results/index.md): tools/OneRender.WptRunner runs the web-platform-tests reftests of the modules listed in tools/wpt/modules.json and records per-module pass rates. Layout… - [Pixel similarity](https://recursiveai.org/onerender/docs/pixel-similarity/index.md): Information only: no gate depends on it. It shows how close our pixels are to Chrome's on the pages the geometry differential uses, and where they differ… - [Benchmarks](https://recursiveai.org/onerender/docs/benchmarks/index.md): The interactive bar, measured on a 1,000-node game-UI page (testdata/game-ui/hud.html, 1280×720): ## Reference - [Architecture](https://recursiveai.org/onerender/docs/architecture/index.md): This page describes the front half of the pipeline as built: the styled-node tree, computed values, the box tree and the fragment tree. Layout algorithms… - [Docs map](https://recursiveai.org/onerender/docs/index/index.md): Normative descriptions of how the engine behaves where the specifications leave room, and of its public formats. Start with the README for what the… - [Changelog](https://recursiveai.org/onerender/docs/changelog/index.md): All notable changes are listed here. The format follows Keep a Changelog and versions follow Semantic Versioning. ## Cookbook - [All recipes](https://recursiveai.org/onerender/cookbook/index.md): 10 short, task-first recipes with complete code.