R3F Learning Docs
React Three Fiber is easiest to learn when you read it as “Three.js described in JSX,” not as a totally different graphics system.
These docs are organized around one teaching loop:
- Read the original Three.js code.
- Compare it to the exact React Three Fiber translation.
- Notice what stays the same and what becomes declarative.
Pinned example stack
react@19.1.1react-dom@19.1.1@react-three/fiber@9.3.0three@0.180.0
What You Will Find Here
Section titled “What You Will Find Here” Start Here A short learning path for understanding R3F without already being fluent in Astro, Three.js, or Fiber.
Conversions Side-by-side examples that translate common Three.js setup and scene patterns into R3F.
Patterns Decision-making notes for refs, state, imperative updates, and where helper libraries belong.
Reference Quick lookup tables for JSX primitives, prop mappings, and common mistakes.
Suggested Reading Order
Section titled “Suggested Reading Order”- Start with Why R3F.
- Read How to Read R3F Like Three.js.
- Work through the conversion pages in order.
- Keep the reference section open when a prop or JSX primitive feels unfamiliar.
Guiding Rule
Section titled “Guiding Rule”If a page shows a three/main.js snippet and an r3f/App.jsx snippet, the goal is not “prettier React.” The goal is to preserve the same scene idea while making the R3F mental model explicit.