what is raytracing.github.io fr?

This repository hosts the main website and online books for the "Ray Tracing in One Weekend" series, a set of free programming books that teach computer graphics through the technique of ray tracing. The topic tags confirm the focus: book, graphics-rendering, ray-tracing, and raytracing. The site is built using Markdeep, a tool for rendering technical documents in the browser. Ray tracing is a method for simulating how light behaves in a scene to produce realistic images. It calculates where light rays would travel from a virtual camera through each pixel, then determines what color that pixel should be based on what the ray hits. Modern games and film studios use ray tracing for realistic shadows, reflections, and lighting. The "Ray Tracing in One Weekend" book series is structured so that a programmer can follow along and build a working ray tracer from scratch, starting with simple shapes and growing the project into a full renderer. The books are written to be approachable for programmers who are new to graphics, rather than requiring a background in graphics research. The website itself (raytracing.github.io) hosts the readable HTML versions of the books, making them freely accessible to anyone. No download is required to read them. This repository contains the source for that site, written in HTML. Over 10,000 stars on GitHub reflect that this project has become a widely used starting point for developers who want to understand how 3D rendering works at a fundamental level. The books are free to read and the source is publicly available.