JSFiddle - React, Tailwind, and code Playground

CSS

body {
	  margin: 0;
    overflow: hidden;
}

JavaScript

import * as THREE from 'https://cdn.skypack.dev/three'

let camera, scene, renderer;

const coords = [
  [0, 0, 0],
  [1, 1, 1]
]

init();

function init() {
	scene = new THREE.Scene();

  camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 0.01, 10);
  camera.position.set(4, 2, -4);
  camera.lookAt(0.5, 0.5, 0.5);

  
  renderer = new THREE.WebGLRenderer({
    antialias: true
  });
  renderer.setSize(window.innerWidth, window.innerHeight);
  document.body.appendChild(renderer.domElement);

  const geometry = new THREE.BufferGeometry();
	
  const instCount = coords.length / 2;
  const coordinates = new Float32Array(24 * instCount);
  const indices = [];

  for (let i = 0; i < instCount; i++) {
    const startCoordinate = new THREE.Vector3(...coords[i * 2]);
    const endCoordinate = new THREE.Vector3(...coords[i * 2 + 1]);
    console.log(startCoordinate, endCoordinate)

    // vertex 0
    coordinates[i * 24 + 0] = startCoordinate.x;
    coordinates[i * 24 + 1] = startCoordinate.y;
    coordinates[i * 24 + 2] = startCoordinate.z;
    // vextex 1
    coordinates[i * 24 + 3] = endCoordinate.x;
    coordinates[i * 24 + 4] = startCoordinate.y;
    coordinates[i * 24 + 5] = startCoordinate.z;
    // vextex 2
    coordinates[i * 24 + 6] = startCoordinate.x;
    coordinates[i * 24 + 7] = endCoordinate.y;
    coordinates[i * 24 + 8] = startCoordinate.z;
    // vextex 3
    coordinates[i * 24 + 9] = endCoordinate.x;
    coordinates[i * 24 + 10] = endCoordinate.y;
    coordinates[i * 24 + 11] = startCoordinate.z;
    // vextex 4
    coordinates[i * 24 + 12] = startCoordinate.x;
    coordinates[i * 24 + 13] = startCoordinate.y;
    coordinates[i * 24 + 14] = endCoordinate.z;
    // vextex 5
    coordinates[i * 24 + 15] = endCoordinate.x;
    coordinates[i * 24 + 16] = startCoordinate.y;
    coordinates[i * 24 + 17] = endCoordinate.z;
    // vextex 6
    coordinates[i * 24 + 18] = startCoordinate.x;
    coordinates[i * 24 + 19] =...