{"id":1915,"date":"2017-08-31T15:27:48","date_gmt":"2017-08-31T07:27:48","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=1915"},"modified":"2017-08-31T15:31:36","modified_gmt":"2017-08-31T07:31:36","slug":"web-ar%e6%a1%86%e6%9e%b6-three-ar-js-api-%e5%a4%a7%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=1915","title":{"rendered":"Web AR\u6846\u67b6 three.ar.js API \u5927\u5168"},"content":{"rendered":"<p>\n\tWeb AR \u548c Web VR\u5c06\u662f\u672a\u6765\u524d\u7aef\u7684\u4e00\u4e2a\u53d1\u5c55\u65b9\u5411\u3002\u76ee\u524d\u7f8e\u56fd\u7684\u4e00\u4e9b\u4e92\u8054\u7f51\u516c\u53f8\u90fd\u5df2\u5728\u8fdb\u884c\u76f8\u5173\u7684\u7814\u7a76\u3002\u8c37\u6b4c\u7684 <a href=\"https:\/\/github.com\/google-ar\/three.ar.js\" name=\"three.ar.js\" target=\"_blank\" title=\"three.ar.js\">three.ar.js<\/a> \u6700\u8fd1\u5df2\u7ecf\u88ab\u5f00\u6e90\uff0c\u56e0\u6b64\u6211\u5728\u524d\u4e24\u7bc7\u4e2d\u4ecb\u7ecd\u4e86\u5b83\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5b83\u7684\u4e00\u4e9b\u5e38\u7528\u7684 API\uff0c\u671f\u671b\u80fd\u5bf9 Web AR\u6709\u5174\u8da3\u670b\u53cb\u6709\u6240\u5e2e\u52a9\u3002\n<\/p>\n<h2>\n\tnew THREE.ARView(vrDisplay, renderer)<br \/>\n<\/h2>\n<p>\n\t\u4f7f\u7528VRDisplay\u548cTHREE.WebGLRenderer\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2aARView\u3002\u7528\u6765\u5904\u7406ARCore\u548cARKit\u5e73\u53f0\u4e4b\u95f4\u7684\u76f8\u673a\u5dee\u5f02\uff0c\u5e76\u5c06\u76f8\u673a\u653e\u7f6e\u5728\u60a8\u7684\u573a\u666f\u540e\u9762\u3002\n<\/p>\n<p>\n\tTHREE.ARView#render()\n<\/p>\n<p>\n\tARView\u5bf9\u8c61\u7684render()\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u7167\u76f8\u673a\u8fdb\u884c\u6e32\u67d3\u3002\u901a\u5e38\u5728\u6e32\u67d3\u5faa\u73af\u4e2d\u7684\u6bcf\u4e2a\u5e27\u4e4b\u524d\u8c03\u7528\uff0c\u7136\u540e\u518d\u6e32\u67d3\u573a\u666f\u4e2d\u7684\u5176\u4ed6\u5bf9\u8c61\u3002\n<\/p>\n<h2>\n\tnew THREE.ARReticle(vrDisplay, innerRadius, outerRadius, color, easing)<br \/>\n<\/h2>\n<p>\n\t\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aTHREE.Mesh\u7ebf\u4e0evrdisplay\u547d\u4e2d\u6d4b\u8bd5\u3002\n<\/p>\n<p>\n\tvoid THREE.ARReticle#update(x, y)\n<\/p>\n<p>\n\t\u5bf9\u6807\u51c6\u5316\u5750\u6807\u6267\u884c\u51fb\u6253\u6d4b\u8bd5\uff0cx\u5e76\u5c06y\u6807\u7ebf\u8fd0\u884c\u5230\u8be5\u4f4d\u7f6e\u3002\u901a\u5e38\u79f0\u4e3a\u6bcf\u4e00\u5e27\u6267\u884c\u547d\u4e2d\u6d4b\u8bd5\uff0c\u5e76\u4f7f\u6807\u7ebf\u6cbf\u7740\u66f2\u9762&ldquo;\u8ddf\u8e2a&rdquo;\u4ee5\u653e\u7f6e\u5176\u4ed6\u5bf9\u8c61\u3002\n<\/p>\n<h2>\n\tnew THREE.ARPerspectiveCamera(vrDisplay, fov, aspect, near, far)<br \/>\n<\/h2>\n<p>\n\tTHREE.ARPERSpectiveCamera \u662fTHREE.PerspectiveCamera\u7684\u4e00\u4e2a\u5b50\u7c7b\u3002\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u4e0e\u60a8\u7684\u8bbe\u5907\u89c6\u89d2\u76f8\u5339\u914d\u7684\u900f\u89c6\u76f8\u673a\uff0c\u5e76\u4fdd\u6301\u6295\u5f71\u77e9\u9635\u4e0e\u8bbe\u5907\u540c\u6b65\u3002\u4f7f\u7528\u8fd9\u53f0\u6444\u50cf\u5934\uff0c\u901a\u8fc7\u6444\u50cf\u673a\u53ef\u4ee5\u770b\u5230AR\u4e0a\u7684\u4e09\u4e2a\u7269\u4f53\u3002\u5982\u679c\u6ca1\u6709\u63d0\u4f9bvrdisplay\uff0c\u6216\u4e0d\u662f\u4e00\u4e2aAR\u663e\u793a\u5668\u3002\u53ef\u4ee5\u9000\u56de\u5230\u6b63\u5e38\u7684THREE.PerspectiveCamera \u5e76\u63d0\u4f9b\u503c\u3002\u4ec5projectionMatrix\u662f\u5982\u679c\u4f7f\u7528AR\u80fd\u529b\u7684\u8bbe\u5907\u66f4\u65b0\uff0c\u5e76\u4e14fov\uff0caspect\uff0cnear\uff0cfar\u5c5e\u6027\u662f\u4e0d\u9002\u7528\u7684\u3002\n<\/p>\n<p>\n\tvoid THREE.ARPerspectiveCamera#getProjectionMatrix()\n<\/p>\n<p>\n\t\u5982\u679c\u5728\u6784\u9020\u51fd\u6570\u4e2d\u7ed9\u51faVRDisplay\uff0c\u5219\u4eceAPI\u751f\u6210\u6295\u5f71\u77e9\u9635\u4ee5\u5339\u914d\u672c\u673a\u76f8\u673a\u5185\u5728\u51fd\u6570\u3002\u8981\u4f7f\u7528\u7f13\u5b58\u7684\u6295\u5f71\u77e9\u9635\uff0c\u53ea\u9700\u8bbf\u95eeprojectionMatrix\u5c5e\u6027\u3002\n<\/p>\n<h2>\n\tnew THREE.ARDebug(vrDisplay)<br \/>\n<\/h2>\n<p>\n\t\u521b\u5efa\u4e00\u4e2aARDebug\u9762\u677f\u6765\u663e\u793a\u547d\u4e2d\u548c\u59ff\u52bf\u4fe1\u606f\u3002\u4f7f\u7528getElement()\u8fd4\u56de\u7531ARDebug\u9762\u677f\u7ba1\u7406\u7684\u5143\u7d20\u6ce8\u5165\u5230\u60a8\u7684\u5185\u5bb9\u3002\n<\/p>\n<ul>\n<li>\n\t\tTHREE.ARDebug#open()\u6253\u5f00ARDebug\u9762\u677f\u3002\n\t<\/li>\n<li>\n\t\tTHREE.ARDebug#close()\u5173\u95edARDebug\u9762\u677f\u3002\n\t<\/li>\n<li>\n\t\tHTMLElement THREE.ARDebug\uff03getElement\uff08\uff09\u8fd4\u56de\u8c03\u8bd5\u9762\u677f\u6ce8\u5165\u5185\u5bb9\u7684HTMLElement\u3002\n\t<\/li>\n<\/ul>\n<h2>\n\tTHREE.ARUtils<br \/>\n<\/h2>\n<p>\n\tTHREE.ARUtils\u4e0d\u662f\u4e00\u4e2a\u6784\u9020\u51fd\u6570\uff0c\u800c\u662f\u5b58\u50a8\u4e0b\u9762\u5217\u51fa\u7684\u51e0\u4e2a\u5b9e\u7528\u51fd\u6570\u7684\u5bf9\u8c61\u3002\n<\/p>\n<ul>\n<li>\n\t\tPromise&lt;VRDisplay?&gt; THREE.ARUtils.getARDevice()\u8fd4\u56de\u4f7f\u7528AR\u529f\u80fd\u89e3\u6790\u4e3aVRDisplay\u7684\u627f\u8bfa\uff0c\u5982\u679c\u8bbe\u5907\u4e0d\u53d7\u652f\u6301\uff0c\u5219\u8fd4\u56denull\u3002\n\t<\/li>\n<li>\n\t\tboolean THREE.ARUtils.isARDisplay(vrDisplay)\u83b7\u53d6\u4e00\u4e2aVRDisplay\u5b9e\u4f8b\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u65e0\u8bba\u8fd9\u662f\u5426\u88ab\u89c6\u4e3aAR\u663e\u793a\u3002\u5c06\u6765\u5f88\u53ef\u80fd\u662f\u57fa\u4e8e\u7279\u8272\u7684\u3002\n\t<\/li>\n<li>\n\t\tboolean THREE.ARUtils.isTango(vrDisplay)\u4f7f\u7528VRDisplay\u5b9e\u4f8b\u5e76\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u65e0\u8bba\u8fd9\u662f\u5426\u4e3aTango-backed \/ ARCore Android\u8bbe\u5907\u3002\n\t<\/li>\n<li>\n\t\tboolean THREE.ARUtils.isarkit(vrDisplay)\u4f7f\u7528VRDisplay\u5b9e\u4f8b\u5e76\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u65e0\u8bba\u8fd9\u662f\u5426\u662f\u57fa\u4e8eARKit\u7684iOS\u8bbe\u5907\u3002\n\t<\/li>\n<li>\n\t\tPromise&lt;THREE.Mesh&gt; THREE.ARUtils.loadBlocksModel(objPath, mtlPath?)\u4e3aOBJ\u6a21\u578b\u548c\u53ef\u9009\u7684MTL\u7eb9\u7406\u7684\u8def\u5f84\u521b\u5efa\u8def\u5f84\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u89e3\u6790\u5230\u4e09\u4e2a.Mesh\u7684\u627f\u8bfa\uff0c\u5e76\u52a0\u8f7d\u9002\u5f53\u7684\u6750\u6599\u3002\u53ef\u4ee5\u4ece\u5757\u4e2d\u4e0b\u8f7d\u7684\u6a21\u578b\u4f7f\u7528\u3002\n\t<\/li>\n<li>\n\t\tvoid THREE.ARUtils.placeObjectAtHit(object, hit, easing=1, applyOrientation=false)\u4ece\u4e00\u4e2a\u8c03\u7528\u4e2d\u83b7\u53d6\u4e00\u4e2aTHREE.Object3D\u548c\u4e00\u4e2aVRHit\u5bf9\u8c61\uff0c\u5e76\u5c06\u5bf9\u8c61VRDisplay.prototype.hitTest\u548c\u4f4d\u7f6e\u8fdb\u884c\u9009\u62e9\u6027\u5730\u5b9a\u4f4d\u5230\u547d\u4e2d\u7684\u6a21\u578b\u77e9\u9635\u3002\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u7f13\u52a8\u6765\u5c06\u5bf9\u8c61\u7684\u5f53\u524d\u53d8\u6362\u8f6c\u6362\u4e3a\u547d\u4e2d\u53d8\u6362\u3002\n\t<\/li>\n<li>\n\t\tvoid THREE.ARUtils.displayUnsupportedMessage()\u751f\u6210\u5143\u7d20\u5e76\u5411DOM\u6ce8\u5165\u6d88\u606f\uff0c\u901a\u77e5\u7528\u6237\u4ed6\u4eec\u7684\u6d4f\u89c8\u5668\u4e0d\u652f\u6301\u539f\u578bAR\u529f\u80fd\u3002\n\t<\/li>\n<\/ul>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/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><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=1915\">Web AR\u6846\u67b6 three.ar.js API \u5927\u5168<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>Web AR \u548c Web VR\u5c06\u662f\u672a\u6765\u524d\u7aef\u7684\u4e00\u4e2a\u53d1\u5c55\u65b9\u5411\u3002\u76ee\u524d\u7f8e\u56fd\u7684\u4e00\u4e9b\u4e92\u8054\u7f51\u516c\u53f8\u90fd\u5df2\u5728\u8fdb\u884c\u76f8\u5173\u7684\u7814\u7a76\u3002\u8c37\u6b4c\u7684 [&hellip;]<\/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-1915","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\/1915","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=1915"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1915\/revisions"}],"predecessor-version":[{"id":1916,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1915\/revisions\/1916"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}