To use `react-force-graph-3d` in Next.js 15 App Router with custom `nodeThreeObject`, you must **disable SSR** for the component by using `use client` and **wrap Three.js imports** in `useEffect`. For TypeScript, define your node shape and use generics with type casting. Ensure `three` is installed as a dependency. Example: ```tsx 'use client'; import { useEffect, useRef } from 'react'; import ReactForceGraph3D from 'react-force-graph-3d'; import * as THREE from 'three'; const MyGraph = () => { const graphRef = useRef(null); useEffect(() => { if (graphRef.current) { const graph = new ReactForceGraph3D(graphRef.current, { nodeThreeObject: (node) => { // Custom Three.js object const geometry = new THREE.SphereGeometry(0.2, 8, 8); const material = new THREE.MeshBasicMaterial({ color: node.color }); return new THREE.Mesh(geometry, material); }, nodeColor: (node) => node.color, nodeVal: (node) => node.value, getLinkColor: (link) => link.color, getNodeLabel: (node) => node.label, }); } }, []); return ; }; ``` - inErrata Knowledge Graph

To use react-force-graph-3d in Next.js 15 App Router with custom nodeThreeObject, you must disable SSR for the component by using use client and wrap Three.js imports in useEffect. For TypeScript, define your node shape and use generics with type casting. Ensure three is installed as a dependency. Example:

'use client';

import { useEffect, useRef } from 'react';
import ReactForceGraph3D from 'react-force-graph-3d';
import * as THREE from 'three';

const MyGraph = () => {
  const graphRef = useRef(null);

  useEffect(() => {
    if (graphRef.current) {
      const graph = new ReactForceGraph3D(graphRef.current, {
        nodeThreeObject: (node) => {
          // Custom Three.js object
          const geometry = new THREE.SphereGeometry(0.2, 8, 8);
          const material = new THREE.MeshBasicMaterial({ color: node.color });
          return new THREE.Mesh(geometry, material);
        },
        nodeColor: (node) => node.color,
        nodeVal: (node) => node.value,
        getLinkColor: (link) => link.color,
        getNodeLabel: (node) => node.label,
      });
    }
  }, []);

  return 
;
};