webxr_ar_dragging.html 5.7 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js ar - dragging</title>
  5. <meta charset="utf-8">
  6. <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
  7. <link type="text/css" rel="stylesheet" href="main.css">
  8. </head>
  9. <body>
  10. <div id="info">
  11. <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> ar - dragging
  12. </div>
  13. <!-- Import maps polyfill -->
  14. <!-- Remove this when import maps will be widely supported -->
  15. <script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
  16. <script type="importmap">
  17. {
  18. "imports": {
  19. "three": "../build/three.module.js"
  20. }
  21. }
  22. </script>
  23. <script type="module">
  24. import * as THREE from 'three';
  25. import { OrbitControls } from './jsm/controls/OrbitControls.js';
  26. import { ARButton } from './jsm/webxr/ARButton.js';
  27. let container;
  28. let camera, scene, renderer;
  29. let controller1, controller2;
  30. let raycaster;
  31. const intersected = [];
  32. const tempMatrix = new THREE.Matrix4();
  33. let group;
  34. init();
  35. animate();
  36. function init() {
  37. container = document.createElement( 'div' );
  38. document.body.appendChild( container );
  39. scene = new THREE.Scene();
  40. camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.1, 10 );
  41. camera.position.set( 0, 0, 3 );
  42. const controls = new OrbitControls( camera, container );
  43. controls.minDistance = 0;
  44. controls.maxDistance = 8;
  45. scene.add( new THREE.HemisphereLight( 0x808080, 0x606060 ) );
  46. const light = new THREE.DirectionalLight( 0xffffff );
  47. light.position.set( 0, 6, 0 );
  48. scene.add( light );
  49. group = new THREE.Group();
  50. scene.add( group );
  51. const geometries = [
  52. new THREE.BoxGeometry( 0.2, 0.2, 0.2 ),
  53. new THREE.ConeGeometry( 0.2, 0.2, 64 ),
  54. new THREE.CylinderGeometry( 0.2, 0.2, 0.2, 64 ),
  55. new THREE.IcosahedronGeometry( 0.2, 8 ),
  56. new THREE.TorusGeometry( 0.2, 0.04, 64, 32 )
  57. ];
  58. for ( let i = 0; i < 50; i ++ ) {
  59. const geometry = geometries[ Math.floor( Math.random() * geometries.length ) ];
  60. const material = new THREE.MeshStandardMaterial( {
  61. color: Math.random() * 0xffffff,
  62. roughness: 0.7,
  63. metalness: 0.0
  64. } );
  65. const object = new THREE.Mesh( geometry, material );
  66. object.position.x = Math.random() * 4 - 2;
  67. object.position.y = Math.random() * 4 - 2;
  68. object.position.z = Math.random() * 4 - 2;
  69. object.rotation.x = Math.random() * 2 * Math.PI;
  70. object.rotation.y = Math.random() * 2 * Math.PI;
  71. object.rotation.z = Math.random() * 2 * Math.PI;
  72. object.scale.setScalar( Math.random() + 0.5 );
  73. group.add( object );
  74. }
  75. //
  76. renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
  77. renderer.setPixelRatio( window.devicePixelRatio );
  78. renderer.setSize( window.innerWidth, window.innerHeight );
  79. renderer.outputEncoding = THREE.sRGBEncoding;
  80. renderer.xr.enabled = true;
  81. container.appendChild( renderer.domElement );
  82. document.body.appendChild( ARButton.createButton( renderer ) );
  83. // controllers
  84. controller1 = renderer.xr.getController( 0 );
  85. controller1.addEventListener( 'selectstart', onSelectStart );
  86. controller1.addEventListener( 'selectend', onSelectEnd );
  87. scene.add( controller1 );
  88. controller2 = renderer.xr.getController( 1 );
  89. controller2.addEventListener( 'selectstart', onSelectStart );
  90. controller2.addEventListener( 'selectend', onSelectEnd );
  91. scene.add( controller2 );
  92. raycaster = new THREE.Raycaster();
  93. //
  94. window.addEventListener( 'resize', onWindowResize );
  95. }
  96. function onWindowResize() {
  97. camera.aspect = window.innerWidth / window.innerHeight;
  98. camera.updateProjectionMatrix();
  99. renderer.setSize( window.innerWidth, window.innerHeight );
  100. }
  101. function onSelectStart( event ) {
  102. const controller = event.target;
  103. const intersections = getIntersections( controller );
  104. if ( intersections.length > 0 ) {
  105. const intersection = intersections[ 0 ];
  106. const object = intersection.object;
  107. object.material.emissive.b = 1;
  108. controller.attach( object );
  109. controller.userData.selected = object;
  110. }
  111. }
  112. function onSelectEnd( event ) {
  113. const controller = event.target;
  114. if ( controller.userData.selected !== undefined ) {
  115. const object = controller.userData.selected;
  116. object.material.emissive.b = 0;
  117. group.attach( object );
  118. controller.userData.selected = undefined;
  119. }
  120. }
  121. function getIntersections( controller ) {
  122. tempMatrix.identity().extractRotation( controller.matrixWorld );
  123. raycaster.ray.origin.setFromMatrixPosition( controller.matrixWorld );
  124. raycaster.ray.direction.set( 0, 0, - 1 ).applyMatrix4( tempMatrix );
  125. return raycaster.intersectObjects( group.children, false );
  126. }
  127. function intersectObjects( controller ) {
  128. // Do not highlight when already selected
  129. if ( controller.userData.selected !== undefined ) return;
  130. const intersections = getIntersections( controller );
  131. if ( intersections.length > 0 ) {
  132. const intersection = intersections[ 0 ];
  133. const object = intersection.object;
  134. object.material.emissive.r = 1;
  135. intersected.push( object );
  136. }
  137. }
  138. function cleanIntersected() {
  139. while ( intersected.length ) {
  140. const object = intersected.pop();
  141. object.material.emissive.r = 0;
  142. }
  143. }
  144. //
  145. function animate() {
  146. renderer.setAnimationLoop( render );
  147. }
  148. function render() {
  149. cleanIntersected();
  150. intersectObjects( controller1 );
  151. intersectObjects( controller2 );
  152. renderer.render( scene, camera );
  153. }
  154. </script>
  155. </body>
  156. </html>