{"id":1913,"date":"2017-08-31T14:29:46","date_gmt":"2017-08-31T06:29:46","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=1913"},"modified":"2017-08-31T14:29:46","modified_gmt":"2017-08-31T06:29:46","slug":"three-ar-js-%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=1913","title":{"rendered":"three.ar.js \u5165\u95e8\u6559\u7a0b"},"content":{"rendered":"

\n\t\u4e0d\u6e05\u695a three.ar.js<\/a> \u7684\u670b\u53cb\uff0c\u53ef\u4ee5\u770b\u6211\u7684\u5173\u4e8ethree.ar.js\u7684\u4ecb\u7ecd<\/a>\u3002\n<\/p>\n

\n\t\u672c\u6587\u5c06\u901a\u8fc7\u4e00\u4e2a\u4f8b\u5b50\u8bb2\u89e3 three.ar.js \u7684\u5b89\u88c5\u548c\u4f7f\u7528\u3002\n<\/p>\n

\n\t\u5b89\u88c5
\n<\/h2>\n

\n\t\u4f7f\u7528 Script \u811a\u672c\u7684\u53ef\u4ee5\u4e0b\u4e0b\u8f7d three.ar.js<\/a>\u3002\u4e0b\u8f7d\u5b8c\u6210\u540e\u5e76\u5c06\u5176\u4f5c\u4e3a\u811a\u672c\u6807\u7b7e\u5305\u542b\u5728\u7f51\u9875\u4e2d\u3002\u4f7f\u7528 three.ar.js \u5fc5\u987b\u5148\u5f15\u5165 three.js\u3002\n<\/p>\n

\r\n<script src='three.js'><\/script>\r\n<script src='three.ar.js'><\/script><\/pre>\n
\n\t\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u6784\u5efa\u5de5\u5177\uff0c\u50cfbrowserify\u6216\u7684WebPack\uff0c\u53ef\u4ee5\u901a\u8fc7NPM\u8fdb\u884c\u5b89\u88c5\u3002\u6ce8\u610f\uff0c\u60a8\u8fd8\u5fc5\u987b\u901a\u8fc7npm\u5b89\u88c5three.js\u3002\n<\/p>\n
\r\n$ npm install --save three three.ar.js<\/pre>\n
\n\t\u4f7f\u7528
\n<\/h2>\n
\n\t\u4e0b\u9762\u662f\u4e00\u4e2a\u901a\u8fc7 Script \u811a\u672c\u6807\u7b7e\u5f15\u5165 three.ar.js \u65b9\u5f0f\u7684\u4e00\u4e2a\u5b8c\u6574demo\u3002\n<\/p>\n
\r\n<!DOCTYPE html>\r\n<html lang="en">\r\n<head>\r\n  <title>three.ar.js - Reticle<\/title>\r\n  <meta charset="utf-8">\r\n  <meta name="viewport" content="width=device-width, user-scalable=no,\r\n  minimum-scale=1.0, maximum-scale=1.0">\r\n  <style>\r\n    body {\r\n      font-family: monospace;\r\n      margin: 0;\r\n      overflow: hidden;\r\n      position: fixed;\r\n      width: 100%;\r\n      height: 100vh;\r\n      -webkit-user-select: none;\r\n      user-select: none;\r\n    }\r\n    #info {\r\n      position: absolute;\r\n      left: 50%;\r\n      bottom: 0;\r\n      transform: translate(-50%, 0);\r\n      margin: 1em;\r\n      z-index: 10;\r\n      display: block;\r\n      width: 100%;\r\n      line-height: 2em;\r\n      text-align: center;\r\n    }\r\n    #info a, #info .title {\r\n      padding: 0.4em 0.6em;\r\n      border-radius: 0.1em;\r\n    }\r\n    #info a {\r\n      color: rgba(255, 255, 255, 0.8);\r\n      background-color: rgba(40, 40, 40, 0.6);\r\n      font-weight: bold;\r\n      text-decoration: none;\r\n    }\r\n    .title {\r\n      color: rgba(255, 255, 255, 0.9);\r\n      background-color: rgba(40, 40, 40, 0.4);\r\n      margin-left: 0.2em;\r\n    }\r\n    canvas {\r\n      position: absolute;\r\n      top: 0;\r\n      left: 0;\r\n    }\r\n  <\/style>\r\n<\/head>\r\n<body>\r\n<div id="info">\r\n    <a href="https:\/\/github.com\/google-ar\/three.ar.js">three.ar.js<\/a><span class="title">Reticle<\/span>\r\n<\/div>\r\n<script src="..\/third_party\/three.js\/three.js"><\/script>\r\n<script src="..\/third_party\/three.js\/VRControls.js"><\/script>\r\n<script src="..\/dist\/three.ar.js"><\/script>\r\n<script>\r\nvar vrDisplay;\r\nvar vrControls;\r\nvar arView;\r\nvar canvas;\r\nvar camera;\r\nvar scene;\r\nvar renderer;\r\nvar reticle;\r\n\/**\r\n *\u4f7f\u7528`getARDisplay\uff08\uff09`\u5de5\u5177\u6765\u5229\u7528WebVR API\r\n *\u770b\u770b\u662f\u5426\u6709\u4efb\u4f55\u652f\u6301AR\u7684WebVR VRDisplay\u3002\u8fd4\u56de\r\n *\u5982\u679c\u627e\u5230\u6709\u6548\u7684\u663e\u793a\u3002\u5426\u5219\uff0c\u663e\u793a\u4e0d\u53d7\u652f\u6301\r\n *\u6d4f\u89c8\u5668\u6d88\u606f\u3002\r\n * \/\r\nTHREE.ARUtils.getARDisplay().then(function (display) {\r\n  if (display) {\r\n    vrDisplay = display;\r\n    init();\r\n  } else {\r\n    THREE.ARUtils.displayUnsupportedMessage();\r\n  }\r\n});\r\nfunction init() {\r\n  \/\/\u6253\u5f00\u8c03\u8bd5\u9762\u677f\r\n  var arDebug = new THREE.ARDebug(vrDisplay);\r\n  document.body.appendChild(arDebug.getElement());\r\n  \/\/\u8bbe\u7f6ethree.js\u6e32\u67d3\u73af\u5883\r\n  renderer = new THREE.WebGLRenderer({ alpha: true });\r\n  renderer.setPixelRatio(window.devicePixelRatio);\r\n  renderer.setSize(window.innerWidth, window.innerHeight);\r\n  renderer.autoClear = false;\r\n  canvas = renderer.domElement;\r\n  document.body.appendChild(canvas);\r\n  scene = new THREE.Scene();\r\n  \/\/\u521b\u5efaARView\uff0c\u5b83\u662f\u5904\u7406\u7684\u5bf9\u8c61\r\n  \/\/\u57283.js\u540e\u9762\u6e32\u67d3\u76f8\u673a\u6d41\r\n  \/\/\u573a\u666f\r\n  arView = new THREE.ARView(vrDisplay, renderer);\r\n  \/\/ ARPerspectiveCamera\u975e\u5e38\u7c7b\u4f3c\u4e8eTHREE.PerspectiveCamera\uff0c\r\n  \/\/\u9664\u4e86\u4f7f\u7528\u652f\u6301AR\u7684\u6d4f\u89c8\u5668\uff0c\u76f8\u673a\u4f7f\u7528\r\n  \/\/\u4ece\u8bbe\u5907\u63d0\u4f9b\u7684\u6295\u5f71\u77e9\u9635\uff0c\u4f7f\u5f97\r\n  \/\/\u900f\u89c6\u76f8\u673a\u7684\u6df1\u5ea6\u5e73\u9762\u548c\u89c6\u91ce\u5339\u914d\r\n  \/\/\u8bbe\u5907\u4e0a\u7684\u7269\u7406\u6444\u50cf\u5934\u3002\r\n  camera = new THREE.ARPerspectiveCamera(vrDisplay, 60, window.innerWidth \/ window.innerHeight, 0.01, 100);\r\n  \/\/\u521b\u5efa\u6211\u4eec\u7684ARReticle\uff0c\u5b83\u5c06\u4e0d\u65ad\u5730\u89e6\u53d1“hitTest”\u8fdb\u884c\u8ddf\u8e2a\r\n  \/\/\u68c0\u6d4b\u5230\u7684\u8868\u9762\r\n  reticle = new THREE.ARReticle(vrDisplay,\r\n                                0.03, \/\/ innerRadius\r\n                                0.04, \/\/ outerRadius\r\n                                0xff0077, \/\/ \u989c\u8272\r\n                                0.25); \/\/ \u5bbd\u677e\r\n  scene.add(reticle);\r\n  \/\/ VRControls\u662f\u4e09\u4e2a\u5e94\u7528\u8bbe\u5907\u7684\u5b9e\u7528\u7a0b\u5e8f\r\n  \/\/\u53d6\u5411\/\u4f4d\u7f6e\u5230\u900f\u89c6\u76f8\u673a\uff0c\u4fdd\u6301\u6211\u4eec\r\n  \/\/\u73b0\u5b9e\u4e16\u754c\u548c\u865a\u62df\u4e16\u754c\u7684\u540c\u6b65\u3002\r\n  vrControls = new THREE.VRControls(camera);\r\n  \/\/\u7ed1\u5b9a\u6211\u4eec\u7684\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\r\n  window.addEventListener('resize', onWindowResize, false);\r\n  update();\r\n}\r\n\/**\r\n *\u6e32\u67d3\u5faa\u73af\uff0c\u6bcf\u5e27\u8c03\u7528\u4e00\u6b21\u3002\u5904\u7406\u66f4\u65b0\r\n *\u6211\u4eec\u7684\u573a\u666f\u548c\u6e32\u67d3\u3002\r\n *\/\r\nfunction update() {\r\n  \/\/\u5728\u66f4\u65b0\u6211\u4eec\u7684\u76f8\u673a\u6295\u5f71\u77e9\u9635\u7684\u60c5\u51b5\u4e0b\r\n  \/\/\u8fd1\u6216\u8fdc\u7684\u98de\u673a\u5df2\u66f4\u65b0\r\n  camera.updateProjectionMatrix();\r\n  \/\/\u66f4\u65b0\u6211\u4eec\u7684ARReticle\u7684\u4f4d\u7f6e\uff0c\u5e76\u63d0\u4f9b\u5f52\u4e00\u5316\r\n  \/\/\u5c4f\u5e55\u5750\u6807\u53d1\u9001\u547d\u4e2d\u6d4b\u8bd5 - \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\uff080.5,0.5\uff09\r\n  \/\/\u662f\u6211\u4eec\u5c4f\u5e55\u7684\u4e2d\u95f4\r\n  reticle.update(0.5, 0.5);\r\n  \/\/\u66f4\u65b0\u6211\u4eec\u7684\u89c2\u70b9\u76f8\u673a\u7684\u4f4d\u7f6e\r\n  vrControls.update();\r\n  \/\/\u5728\u5c4f\u5e55\u4e0a\u6e32\u67d3\u8bbe\u5907\u7684\u76f8\u673a\u6d41\r\n  arView.render();\r\n  \/\/\u6e32\u67d3\u6211\u4eec\u7684\u4e09\u4e2a\u865a\u62df\u573a\u666f\r\n  renderer.clearDepth();\r\n  renderer.render(scene, camera);\r\n  \/\/\u542f\u52a8requestAnimationFrame\u6765\u8c03\u7528\u6b64\u51fd\u6570\r\n  \/\/\u5728\u4e0b\u4e00\u5e27\r\n  requestAnimationFrame(update);\r\n}\r\n\/**\r\n *\u5728\u7a97\u53e3\u8c03\u6574\u5927\u5c0f\u65f6\uff0c\u66f4\u65b0\u900f\u89c6\u76f8\u673a\u7684\u7eb5\u6a2a\u6bd4\uff0c\r\n *\u5e76\u8c03\u7528`updateProjectionMatrix`\uff0c\u4ee5\u4fbf\u6211\u4eec\u53ef\u4ee5\u5f97\u5230\u6700\u65b0\u7684\r\n *\u4ece\u8bbe\u5907\u63d0\u4f9b\u7684\u6295\u5f71\u77e9\u9635\r\n *\/\r\nfunction onWindowResize () {\r\n  camera.aspect = window.innerWidth \/ window.innerHeight;\r\n  camera.updateProjectionMatrix();\r\n  renderer.setSize(window.innerWidth, window.innerHeight);\r\n}\r\n<\/script>\r\n<\/body>\r\n<\/html><\/pre>\n
\n\t\u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528AR\u589e\u5f3a\u6d4f\u89c8\u5668\u6765\u8bbf\u95ee\u8be5demo\u7684\u5b9e\u73b0\u6548\u679c\u3002\u76f8\u5173AR\u589e\u5f3a\u6d4f\u89c8\u5668<\/a>\u53ef\u4ee5\u5230\u8c37\u6b4c\u5f00\u53d1\u8005\u793e\u533a\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n
\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>
\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » three.ar.js \u5165\u95e8\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"
\u4e0d\u6e05\u695a three.ar.js \u7684\u670b\u53cb\uff0c\u53ef\u4ee5\u770b\u6211\u7684\u5173\u4e8ethree.ar.js\u7684\u4ecb\u7ecd\u3002 \u672c\u6587\u5c06\u901a\u8fc7\u4e00\u4e2a\u4f8b\u5b50\u8bb2\u89e3  […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[1476,1474,1475],"class_list":["post-1913","post","type-post","status-publish","format-standard","hentry","category-html5","tag-ar","tag-three-ar-js","tag-three-js"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1913"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1913\/revisions"}],"predecessor-version":[{"id":1914,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1913\/revisions\/1914"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}