webgl_materials_variations_basic.html 5.4 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - materials</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="container"></div>
  11. <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Basic Material Variantions by <a href="http://clara.io/" target="_blank" rel="noopener">Ben Houston</a>.</div>
  12. <script type="module">
  13. import * as THREE from '../build/three.module.js';
  14. import Stats from './jsm/libs/stats.module.js';
  15. import { OrbitControls } from './jsm/controls/OrbitControls.js';
  16. var container, stats;
  17. var camera, scene, renderer;
  18. var particleLight;
  19. var loader = new THREE.FontLoader();
  20. loader.load( 'fonts/gentilis_regular.typeface.json', function ( font ) {
  21. init( font );
  22. animate();
  23. } );
  24. function init( font ) {
  25. container = document.createElement( 'div' );
  26. document.body.appendChild( container );
  27. camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2000 );
  28. camera.position.set( 0.0, 400, 400 * 3.5 );
  29. //
  30. var reflectionCube = new THREE.CubeTextureLoader()
  31. .setPath( 'textures/cube/SwedishRoyalCastle/' )
  32. .load( [ 'px.jpg', 'nx.jpg', 'py.jpg', 'ny.jpg', 'pz.jpg', 'nz.jpg' ] );
  33. reflectionCube.format = THREE.RGBFormat;
  34. reflectionCube.encoding = THREE.sRGBEncoding;
  35. scene = new THREE.Scene();
  36. scene.background = reflectionCube;
  37. // Materials
  38. var imgTexture = new THREE.TextureLoader().load( "textures/planets/moon_1024.jpg" );
  39. imgTexture.wrapS = imgTexture.wrapT = THREE.RepeatWrapping;
  40. imgTexture.encoding = THREE.sRGBEncoding;
  41. imgTexture.anisotropy = 16;
  42. imgTexture = null;
  43. var cubeWidth = 400;
  44. var numberOfSphersPerSide = 5;
  45. var sphereRadius = ( cubeWidth / numberOfSphersPerSide ) * 0.8 * 0.5;
  46. var stepSize = 1.0 / numberOfSphersPerSide;
  47. var geometry = new THREE.SphereBufferGeometry( sphereRadius, 32, 16 );
  48. for ( var alpha = 0; alpha <= 1.0; alpha += stepSize ) {
  49. for ( var beta = 0; beta <= 1.0; beta += stepSize ) {
  50. for ( var gamma = 0; gamma <= 1.0; gamma += stepSize ) {
  51. var diffuseColor = new THREE.Color().setHSL( alpha, 0.5, gamma * 0.5 + 0.1 );
  52. var material = new THREE.MeshBasicMaterial( {
  53. map: imgTexture,
  54. color: diffuseColor,
  55. reflectivity: beta,
  56. envMap: alpha < 0.5 ? reflectionCube : null
  57. } );
  58. var mesh = new THREE.Mesh( geometry, material );
  59. mesh.position.x = alpha * 400 - 200;
  60. mesh.position.y = beta * 400 - 200;
  61. mesh.position.z = gamma * 400 - 200;
  62. scene.add( mesh );
  63. }
  64. }
  65. }
  66. function addLabel( name, location ) {
  67. var textGeo = new THREE.TextBufferGeometry( name, {
  68. font: font,
  69. size: 20,
  70. height: 1,
  71. curveSegments: 1
  72. } );
  73. var textMaterial = new THREE.MeshBasicMaterial( { color: 0xffffff } );
  74. var textMesh = new THREE.Mesh( textGeo, textMaterial );
  75. textMesh.position.copy( location );
  76. scene.add( textMesh );
  77. }
  78. addLabel( "+hue", new THREE.Vector3( - 350, 0, 0 ) );
  79. addLabel( "-hue", new THREE.Vector3( 350, 0, 0 ) );
  80. addLabel( "-reflectivity", new THREE.Vector3( 0, - 300, 0 ) );
  81. addLabel( "+reflectivity", new THREE.Vector3( 0, 300, 0 ) );
  82. addLabel( "-diffuse", new THREE.Vector3( 0, 0, - 300 ) );
  83. addLabel( "+diffuse", new THREE.Vector3( 0, 0, 300 ) );
  84. addLabel( "envMap", new THREE.Vector3( - 350, 300, 0 ) );
  85. addLabel( "no envMap", new THREE.Vector3( 350, 300, 0 ) );
  86. particleLight = new THREE.Mesh( new THREE.SphereBufferGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xffffff } ) );
  87. scene.add( particleLight );
  88. // Lights
  89. scene.add( new THREE.AmbientLight( 0x222222 ) );
  90. var directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );
  91. directionalLight.position.set( 1, 1, 1 ).normalize();
  92. scene.add( directionalLight );
  93. var pointLight = new THREE.PointLight( 0xffffff, 2, 800 );
  94. particleLight.add( pointLight );
  95. //
  96. renderer = new THREE.WebGLRenderer( { antialias: true } );
  97. renderer.setPixelRatio( window.devicePixelRatio );
  98. renderer.setSize( window.innerWidth, window.innerHeight );
  99. container.appendChild( renderer.domElement );
  100. renderer.outputEncoding = THREE.sRGBEncoding;
  101. //
  102. stats = new Stats();
  103. container.appendChild( stats.dom );
  104. var controls = new OrbitControls( camera, renderer.domElement );
  105. window.addEventListener( 'resize', onWindowResize, false );
  106. }
  107. function onWindowResize() {
  108. camera.aspect = window.innerWidth / window.innerHeight;
  109. camera.updateProjectionMatrix();
  110. renderer.setSize( window.innerWidth, window.innerHeight );
  111. }
  112. //
  113. function animate() {
  114. requestAnimationFrame( animate );
  115. render();
  116. stats.update();
  117. }
  118. function render() {
  119. var timer = Date.now() * 0.00025;
  120. //camera.position.x = Math.cos( timer ) * 800;
  121. //camera.position.z = Math.sin( timer ) * 800;
  122. camera.lookAt( scene.position );
  123. particleLight.position.x = Math.sin( timer * 7 ) * 300;
  124. particleLight.position.y = Math.cos( timer * 5 ) * 400;
  125. particleLight.position.z = Math.cos( timer * 3 ) * 300;
  126. renderer.render( scene, camera );
  127. }
  128. </script>
  129. </body>
  130. </html>