Scaffold a 3D website

Set up a clean, performant starting point for a 3D web project. Confirm the two choices below from the user's request (or pick the default and state it), then execute.

Choices

1. Renderer app: Vite SPA (default — fastest for pure 3D experiences) OR Next.js (when SEO/SSR/marketing pages matter, 3D as islands).
2. Quality preset: lite (core 3D only) or full (adds motion + postprocessing + physics). Default full.

Step 1 — Create the app

Vite + React + TS (default):

npm create vite@latest my-3d-site -- --template react-ts
cd my-3d-site