webgl_geometries.html 4.5 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - geometries</title>
  5. <meta charset="utf-8">
  6. <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
  7. <link type="text/css" rel="stylesheet" href="main.css">
  8. </head>
  9. <body>
  10. <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - geometries</div>
  11. <script type="importmap">
  12. {
  13. "imports": {
  14. "three": "../build/three.module.js",
  15. "three/addons/": "./jsm/"
  16. }
  17. }
  18. </script>
  19. <script type="module">
  20. import * as THREE from 'three';
  21. import Stats from 'three/addons/libs/stats.module.js';
  22. let camera, scene, renderer, stats;
  23. init();
  24. function init() {
  25. camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
  26. camera.position.y = 400;
  27. scene = new THREE.Scene();
  28. let object;
  29. const ambientLight = new THREE.AmbientLight( 0xcccccc, 1.5 );
  30. scene.add( ambientLight );
  31. const pointLight = new THREE.PointLight( 0xffffff, 2.5, 0, 0 );
  32. camera.add( pointLight );
  33. scene.add( camera );
  34. const map = new THREE.TextureLoader().load( 'textures/uv_grid_opengl.jpg' );
  35. map.wrapS = map.wrapT = THREE.RepeatWrapping;
  36. map.anisotropy = 16;
  37. map.colorSpace = THREE.SRGBColorSpace;
  38. const material = new THREE.MeshPhongMaterial( { map: map, side: THREE.DoubleSide } );
  39. //
  40. object = new THREE.Mesh( new THREE.SphereGeometry( 75, 20, 10 ), material );
  41. object.position.set( - 300, 0, 200 );
  42. scene.add( object );
  43. object = new THREE.Mesh( new THREE.IcosahedronGeometry( 75, 1 ), material );
  44. object.position.set( - 100, 0, 200 );
  45. scene.add( object );
  46. object = new THREE.Mesh( new THREE.OctahedronGeometry( 75, 2 ), material );
  47. object.position.set( 100, 0, 200 );
  48. scene.add( object );
  49. object = new THREE.Mesh( new THREE.TetrahedronGeometry( 75, 0 ), material );
  50. object.position.set( 300, 0, 200 );
  51. scene.add( object );
  52. //
  53. object = new THREE.Mesh( new THREE.PlaneGeometry( 100, 100, 4, 4 ), material );
  54. object.position.set( - 300, 0, 0 );
  55. scene.add( object );
  56. object = new THREE.Mesh( new THREE.BoxGeometry( 100, 100, 100, 4, 4, 4 ), material );
  57. object.position.set( - 100, 0, 0 );
  58. scene.add( object );
  59. object = new THREE.Mesh( new THREE.CircleGeometry( 50, 20, 0, Math.PI * 2 ), material );
  60. object.position.set( 100, 0, 0 );
  61. scene.add( object );
  62. object = new THREE.Mesh( new THREE.RingGeometry( 10, 50, 20, 5, 0, Math.PI * 2 ), material );
  63. object.position.set( 300, 0, 0 );
  64. scene.add( object );
  65. //
  66. object = new THREE.Mesh( new THREE.CylinderGeometry( 25, 75, 100, 40, 5 ), material );
  67. object.position.set( - 300, 0, - 200 );
  68. scene.add( object );
  69. const points = [];
  70. for ( let i = 0; i < 50; i ++ ) {
  71. points.push( new THREE.Vector2( Math.sin( i * 0.2 ) * Math.sin( i * 0.1 ) * 15 + 50, ( i - 5 ) * 2 ) );
  72. }
  73. object = new THREE.Mesh( new THREE.LatheGeometry( points, 20 ), material );
  74. object.position.set( - 100, 0, - 200 );
  75. scene.add( object );
  76. object = new THREE.Mesh( new THREE.TorusGeometry( 50, 20, 20, 20 ), material );
  77. object.position.set( 100, 0, - 200 );
  78. scene.add( object );
  79. object = new THREE.Mesh( new THREE.TorusKnotGeometry( 50, 10, 50, 20 ), material );
  80. object.position.set( 300, 0, - 200 );
  81. scene.add( object );
  82. //
  83. renderer = new THREE.WebGLRenderer( { antialias: true } );
  84. renderer.setPixelRatio( window.devicePixelRatio );
  85. renderer.setSize( window.innerWidth, window.innerHeight );
  86. renderer.setAnimationLoop( animate );
  87. document.body.appendChild( renderer.domElement );
  88. stats = new Stats();
  89. document.body.appendChild( stats.dom );
  90. //
  91. window.addEventListener( 'resize', onWindowResize );
  92. }
  93. function onWindowResize() {
  94. camera.aspect = window.innerWidth / window.innerHeight;
  95. camera.updateProjectionMatrix();
  96. renderer.setSize( window.innerWidth, window.innerHeight );
  97. }
  98. //
  99. function animate() {
  100. render();
  101. stats.update();
  102. }
  103. function render() {
  104. const timer = Date.now() * 0.0001;
  105. camera.position.x = Math.cos( timer ) * 800;
  106. camera.position.z = Math.sin( timer ) * 800;
  107. camera.lookAt( scene.position );
  108. scene.traverse( function ( object ) {
  109. if ( object.isMesh === true ) {
  110. object.rotation.x = timer * 5;
  111. object.rotation.y = timer * 2.5;
  112. }
  113. } );
  114. renderer.render( scene, camera );
  115. }
  116. </script>
  117. </body>
  118. </html>