{"id":229,"date":"2014-10-08T22:52:05","date_gmt":"2014-10-08T14:52:05","guid":{"rendered":"http:\/\/www.hightopo.com\/blog\/?p=229"},"modified":"2014-10-08T23:13:51","modified_gmt":"2014-10-08T15:13:51","slug":"ht%e5%9b%be%e5%bd%a2%e7%bb%84%e4%bb%b6%e8%ae%be%e8%ae%a1%e4%b9%8b%e9%81%93%ef%bc%88%e5%9b%9b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.hightopo.com\/blog\/229.html","title":{"rendered":"HT\u56fe\u5f62\u7ec4\u4ef6\u8bbe\u8ba1\u4e4b\u9053\uff08\u56db\uff09"},"content":{"rendered":"

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\"Screen<\/a><\/p>\n

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\"Screen<\/a><\/p>\n

\u8bfb\u53d6OBJ\u6587\u4ef6\u4e00\u822c\u91c7\u7528AJAX\u7684\u65b9\u5f0f\u8fdc\u7a0b\u52a0\u8f7d\uff0c\u8fd9\u5bf9\u4e8e\u559c\u6b22\u7eaf\u524d\u7aef\u7684\u7a0b\u5e8f\u5458\u6765\u8bf4\u5f88\u4e0d\u723d\uff0c\u5f00\u53d1\u6216\u6f14\u793a\u4e2a\u4f8b\u5b50\u8fd8\u5f97\u542f\u670d\u52a1\uff0c\u6211\u559c\u6b22\u672c\u5730\u6587\u4ef6\u6253\u5f00\u5c31\u80fd\u8dd1\u4e0d\u53d7\u8de8\u57df\u5b89\u5168\u9650\u5236\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5c06OBJ\u7684\u6587\u672c\u4fe1\u606f\u653e\u5728\u5728HTML\u6216\u8005JS\u4ee3\u7801\u4e2d\u3002\u89e3\u51b3\u8fd9\u7c7b\u95ee\u9898\u6709\u5f88\u591a\u79cd\u65b9\u5f0f\uff0c\u4f8b\u5982\u5bf9\u4e8eWebGL\u5f00\u53d1\u6765\u8bf4vertex shader\u548cfragment shader\u4ee3\u7801\u540c\u6837\u9762\u4e34\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e00\u79cd\u65b9\u5f0f\u662f\u5199\u6210\u4e00\u5806\u7684string\u7684array\u7136\u540e\u8fdb\u884cjoin\u7684\u65b9\u5f0f\uff0c\u53e6\u4e00\u79cd\u65b9\u5f0f\u662f\u589e\u52a0<script id=”shader-vs” type=”x-shader\/x-vertex”><\/script>\u548c<script id=”shader-fs” type=”x-shader\/x-fragment”><\/script>\u7684\u81ea\u5b9a\u4e49\u7c7b\u4f3cscript\u5757\uff0c\u7136\u540e\u8bfb\u53d6\u76f8\u5e94DOM\u5143\u7d20\u7684textContent\u6765\u83b7\u53d6\u6587\u672c\u5185\u5bb9\u3002<\/p>\n

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var flight_mtl = getRawText(function(){\/*\r\n\tnewmtl body\r\n\tNs 10.0000\r\n\tNi 1.5000\r\n\td 1.0000\r\n\tTr 0.0000\r\n\tTf 1.0000 1.0000 1.0000 \r\n\tillum 2\r\n\tKa 0.3608 0.4353 0.2549\r\n\tKd 0.3608 0.4353 0.2549\r\n\tKs 0.0000 0.0000 0.0000\r\n\tKe 0.0000 0.0000 0.0000\r\n\t...\r\n*\/});\r\n\r\nvar flight_obj = getRawText(function(){\/*\r\n\tv  -21.7990 -2.5094 -157.4279\r\n\tv  -34.5972 -20.3459 -42.9317\r\n\tv  -36.7638 -6.2029 -43.0833\r\n\t...\r\n*\/});\t\t\t\r\n\r\nfunction getRawText(obj){\r\n    var text = String(obj); \r\n    return text.substring(14, text.length-3);\r\n}<\/pre>\n
\u4ee5\u4e0b\u4e3a\u6ce8\u518c\u98de\u673a\u6a21\u578b\u7684\u4ee3\u7801\uff0c\u901a\u8fc7\u4ee3\u7801\u7684\u6ce8\u89e3\u53ef\u77e5\u6211\u4eec\u5bf9\u98de\u673a\u6a21\u578b\u505a\u4e86\u8c03\u6574\uff0c\u901a\u8fc7r3: [0, -Math.PI\/2, 0]\u6211\u5c06\u6574\u4f53\u98de\u673a\u6a21\u578b\u6cbf\u7740y\u8f74\u65cb\u8f6c\u4e86-Math.PI\u5f27\u5ea6\u4f7f\u4e4b\u671d\u5411\u53f3\u8fb9\uff0c\u901a\u8fc7s3:[0.1, 0.1, 0.1]\u5c06\u98de\u673a\u6a21\u578b\u7f29\u5c0f\u4e8610\u500d\u3002<\/p>\n
ht.Default.loadObj(flight_obj, flight_mtl, {                    \r\n\tcenter: true,\r\n\tr3: [0, -Math.PI\/2, 0], \/\/ make plane face right\r\n\ts3: [0.1, 0.1, 0.1], \/\/ make plane smaller\r\n\tfinishFunc: function(modelMap, array, rawS3){\r\n\t\tif(modelMap){                            \r\n\t\t\tmodelMap.propeller.r3 = {\r\n\t\t\t\tfunc: function(data){\r\n\t\t\t\t\treturn [data.a('angle'), 0, 0]; \r\n\t\t\t\t}                                \r\n\t\t\t};                             \r\n\t\t\t\/\/ make propeller a litter bigger\r\n\t\t\tmodelMap.propeller.s3 = [1, 1.2, 1.2]; \r\n\t\t\tmodelMap.propeller.color = 'yellow';\r\n\r\n\t\t\t\/\/ add a sphere model as an indicator light\r\n\t\t\tarray.push({\r\n\t\t\t\tshape3d: ht.Default.createSmoothSphereModel(),\r\n\t\t\t\tt3: [-40, 10, 0],\r\n\t\t\t\ts3: [6, 6, 6],\r\n\t\t\t\tcolor: {\r\n\t\t\t\t\tfunc: function(data){\r\n\t\t\t\t\t\treturn data.a('light') ? 'red': 'black';\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t});\r\n\t\t\tht.Default.setShape3dModel('plane', array);\r\n\r\n\t\t\tcreatePlane(rawS3);\r\n\t\t\tcreateFormPane();  \r\n\t\t} \r\n\t}\r\n});<\/pre>\n
\"Screen<\/a><\/p>\n
\u98de\u673a\u7684\u87ba\u65cb\u6868\u6a21\u578b\u7ed1\u5b9a\u4e86data.a(‘angle’)\u5c5e\u6027\uff0c\u539f\u59cb\u87ba\u65cb\u6868\u6a21\u578b\u6709\u70b9\u5c0f\uff0c\u901a\u8fc7modelMap.propeller.s3 = [1, 1.2, 1.2];\u5728yz\u9762\u505a\u4e861.2\u500d\u7684\u653e\u5927\uff0c\u901a\u8fc7modelMap.propeller.color = ‘yellow’;\u5c06\u539f\u59cb\u6a21\u578b\u7684\u989c\u8272\u6539\u6210\u66f4\u663e\u773c\u7684\u9ec4\u8272\uff0c\u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539mtl\u6587\u4ef6\u5b9e\u73b0\uff0c\u751a\u81f3\u518d\u5c06\u8be5\u5c5e\u6027\u7ed1\u5b9a\u6570\u636e\u6a21\u578b\u8fdb\u884c\u52a8\u6001\u53d8\u5316\u3002<\/p>\n
\u98de\u673a\u5c3e\u90e8\u539f\u59cb\u6a21\u578b\u5e76\u6ca1\u6709\u6307\u793a\u706f\uff0c\u6211\u4eec\u901a\u8fc7ht.Default.createSmoothSphereModel()\u7528API\u521b\u5efa\u4e86\u4e00\u4e2a\u6a21\u578b\uff0c\u4e0eOBJ\u7684\u6a21\u578b\u8fdb\u884c\u4e86\u7ec4\u5408\uff0c\u6307\u793a\u706f\u7684\u989c\u8272\u901a\u8fc7return data.a(‘light’) ? ‘red’: ‘black’;\u7684\u51fd\u6570\u903b\u8f91\u8fdb\u884c\u6570\u636e\u7ed1\u5b9a\uff0c\u540e\u7eed\u6211\u4eec\u5c06\u5728\u98de\u673a\u8fd0\u884c\u8fc7\u7a0b\u52a8\u6001\u53d8\u5316data.a(‘light’)\u53c2\u6570\uff0c\u5b9e\u73b0\u98de\u673a\u98de\u884c\u8fc7\u7a0b\u6307\u793a\u706f\u7684\u95ea\u70c1\u6548\u679c\u3002<\/p>\n
\"Screen<\/a><\/p>\n
\u98de\u884c\u8def\u7ebf\u662f\u901a\u8fc7ht.Polyline\u7c7b\u578b\u6784\u5efa\u7684\uff0c\u4e0a\u56fe\u7684\u51e0\u4e2a\u9ec4\u8272\u7403\u662f\u98de\u884c\u8def\u7ebfPolyline\u5bf9\u8c61\u7684\u90e8\u5206\u63a7\u5236\u70b9\uff0c\u901a\u8fc7\u8fd9\u51e0\u4e2a\u63a7\u5236\u70b9\u6211\u4eec\u751a\u81f3\u53ef\u4ee5\u5728\u98de\u673a\u98de\u884c\u8fc7\u7a0b\u52a8\u6001\u6539\u53d8\u98de\u884c\u8def\u7ebf\u3002<\/p>\n
params = {\r\n \u00a0\u00a0\u00a0\u00a0 delay: 1500,\r\n \u00a0\u00a0\u00a0\u00a0 duration: 20000,\r\n \u00a0\u00a0\u00a0\u00a0 easing: function(t){\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return (t *= 2) < 1 ? 0.5 * t * t : 0.5 * (1 - (--t) * (t - 2));\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0\u00a0 },\r\n \u00a0\u00a0\u00a0\u00a0 action: function(v, t){\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 var point = getPoint(v),\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 px = point.x,\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 py = point.y,\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pz = point.z,\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tangent = getTangent(v),\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tx = tangent.x,\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ty = tangent.y,\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tz = tangent.z;\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 plane.p3(px, py, pz);\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 plane.lookAt([px + tx, py + ty, pz + tz], 'right');\u00a0\u00a0\r\n\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 var camera = formPane.v('Camera');\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(camera === 'Look At'){\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 g3d.setCenter(px, py, pz);\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 else if(camera === 'First Person'){\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 g3d.setEye(px - tx * 400, py - ty * 400 + 30, pz - tz * 400);\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 g3d.setCenter(px, py, pz);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 plane.a('angle', v*Math.PI*120);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(this.duration * t % 1000 > 500){\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 plane.a('light', false);\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 plane.a('light', true);\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0\u00a0 },\r\n \u00a0\u00a0\u00a0\u00a0 finishFunc: function(){\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 animation = ht.Default.startAnim(params);\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 plane.a('light', false);\r\n \u00a0\u00a0\u00a0\u00a0 }\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n };\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n\r\n animation = ht.Default.startAnim(params);<\/pre>\n
\u4ee5\u4e0a\u4e3a\u98de\u884c\u52a8\u753b\u7684\u76f8\u5173\u4ee3\u7801\uff0cht.Default.startAnim\u53ef\u542f\u52a8Frame-Based\u548cTime-Based\u4e24\u79cd\u65b9\u5f0f\u7684\u52a8\u753b\uff0c\u672c\u4f8b\u4e2d\u6211\u4eec\u9700\u8981\u52a8\u6001\u6539\u53d8\u98de\u884c\u7684\u5468\u671f\uff0c\u540c\u65f6Frame-Based\u7684\u65b9\u5f0f\u4f1a\u5bfc\u81f4\u4e0d\u540c\u786c\u4ef6\u8bbe\u5907\u603b\u4f53\u8fd0\u884c\u5468\u671f\u5dee\u5f02\u592a\u5927\uff0c\u56e0\u6b64\u6211\u4eec\u91c7\u7528\u8bbe\u7f6eDuration\u7684Time-Based\u7684\u52a8\u753b\u65b9\u5f0f\u3002<\/p>\n
\u52a8\u753b\u8fc7\u7a0b\u4e3b\u8981\u8981\u6539\u53d8\u98de\u673a\u7684\u4f4d\u7f6e\uff0c\u4ee5\u53ca\u4fdd\u6301\u673a\u5934\u671d\u5411\u5207\u7ebf\u65b9\u5411\uff0c\u540c\u65f6\u5728Look At\u7684\u6a21\u5f0f\u4e0b\uff0c\u6211\u4eec\u4e0d\u65ad\u8ba9HT\u7684Graph3dView\u7684eye\u5c5e\u6027\u76ef\u7740\u98de\u673a\u7684\u4f4d\u7f6e\uff0cFirst Person\u6a21\u5f0f\u4e0b\u6211\u4eec\u8fd8\u9700\u8981\u6539\u53d8Graph3dView\u7684center\u5c5e\u6027\u3002\u901a\u8fc7if(this.duration * t % 1000 > 500)\u7684\u4ee3\u7801\u903b\u8f91\uff0c\u5b9e\u73b0\u4e86\u534a\u79d2\u949f\u6539\u53d8\u4e00\u6b21light\u5c5e\u6027\u7684\u95ea\u70c1\u6548\u679c\u3002<\/p>\n
\u4e3a\u4e86\u8fbe\u5230\u66f4\u903c\u771f\u7684\u73b0\u5b9e\u6548\u679c\u6211\u4eec\u5b9a\u4e49\u4e86Easing\u51fd\u6570\uff0c\u91c7\u7528\u4e86easeBoth\u8fd9\u79cd\u8d77\u59cb\u7ed3\u675f\u8f83\u6162\u4e2d\u95f4\u8fc7\u7a0b\u8f83\u5feb\u7684\u52a8\u753b\u51fd\u6570\uff0c\u53ef\u53c2\u8003\u300a\u900f\u8fc7WebGL 3D\u770b\u52a8\u753bEasing\u51fd\u6570\u672c\u8d28<\/a>\u300b\u6587\u7ae0\uff0c\u4ece\u800c\u5b9e\u73b0\u98de\u673a\u9010\u6e10\u52a0\u901f\u542f\u52a8\u542f\u52a8\uff0c\u6162\u6162\u51cf\u901f\u7740\u843d\u7684\u6548\u679c\uff0c\u87ba\u65cb\u6868\u7684\u65cb\u8f6c\u89d2\u5ea6\u4e5f\u5728\u52a8\u753b\u8fc7\u7a0b\u4e2d\u6839\u636eEasing\u76f8\u5173\u53c2\u6570\u503c\u8bbe\u7f6e\uff0c\u56e0\u6b64\u87ba\u65cb\u6868\u7684\u65cb\u8f6c\u901f\u5ea6\u4e5f\u4e00\u81f4\u7684\u653e\u6620\u4e86\u8fd9\u79cd\u52a8\u753b\u6548\u679c\u3002<\/p>\n
\"Screen<\/a><\/p>\n
\u8be5\u4f8b\u5b50\u7efc\u5408\u8fd0\u7528\u4e86HT for Web<\/a>\u7684\u591a\u79cd\u6280\u672f\u529f\u80fd\uff0c\u5927\u5bb6\u80fd\u4f53\u4f1a\u5230HT<\/a>\u8fd9\u79cd\u6570\u636e\u7ed1\u5b9a\u673a\u5236\u7075\u6d3b\u4e14\u5f3a\u5927\u7684\u7279\u70b9\uff0c\u901a\u8fc7\u6570\u636e\u7ed1\u5b9a\u673a\u5236\uff0c\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u4fee\u6539\u4ece2D\u62d3\u6251\u56fe\u3001\u5230\u901a\u7528\u7ec4\u4ef6\u6e32\u67d3\uff0c\u751a\u81f3\u52303D\u5f15\u64ce\u7684\u6570\u636e\u6a21\u578b\uff0c\u6240\u6709\u56fe\u5f62\u5143\u7d20\u7684\u989c\u8272\u3001\u5927\u5c0f\u548c\u89d2\u5ea6\u7b49\u53c2\u6570\u7686\u53ef\u7075\u6d3b\u63a7\u5236\uff0c\u5e76\u4e14\u4ee5\u6700\u76f4\u89c2\u6613\u7528\u7684\u65b9\u5f0f\u4f9b\u7a0b\u5e8f\u5458\u4e8c\u6b21\u5f00\u53d1\u4e0e\u5b9e\u9645\u4e1a\u52a1\u6570\u636e\u7ed1\u5b9a\u5173\u8054\u3002<\/p>\n
\u6700\u540e\u4e0a\u6bb5\u8be5HTML5\u4f8b\u5b50\u5728iOS\u3001Android\u548cMac\u7b49\u591a\u5e73\u53f0\u4e0b\u7684\u8fd0\u884c\u89c6\u9891\u548c\u6293\u56fe\uff0c\u6709\u5174\u8da3\u7684\u540c\u5b66\u8fd8\u53ef\u5bf9\u8be5\u4f8b\u5b50\u505a\u66f4\u591a\u6709\u610f\u601d\u7684\u6539\u9020\u6269\u5c55\u3002
\n