What is r3f-webgpu-perf?

This repository provides a performance monitoring overlay for web-based 3D applications. Specifically, it is designed for projects using React Three Fiber, which is a way to write Three.js 3D graphics inside React applications. The tool also targets WebGPU, a modern browser technology that gives web applications more direct access to the graphics card than the older WebGL standard. When building a 3D application in the browser, understanding why it runs slowly can be difficult without the right tools. This library adds a real-time display panel that shows numbers like how long each frame takes to render, how busy the GPU is, how much memory the graphics system is using, and how many individual draw calls your scene requires. Draw calls are instructions sent to the graphics card to render objects, and too many of them is a common reason why 3D scenes perform poorly. The monitoring interface is designed to be lightweight, meaning it does not slow down the application it is measuring by any significant amount. It is also described as customizable, so developers can adjust what information is displayed to suit their particular debugging situation. Technical artists, who work at the intersection of art and programming to optimize how 3D scenes look and perform, are also called out as a key audience. The repository has no README file, so exact installation steps are not documented here. Based on the JavaScript language and the project description, it is likely an npm package added to a React Three Fiber project, and it appears to extend the existing r3f-perf monitoring ecosystem with specific support for the newer WebGPU rendering path.