{"id":309,"date":"2014-07-02T04:22:16","date_gmt":"2014-07-01T20:22:16","guid":{"rendered":"http:\/\/blog.stlover.org\/?p=309"},"modified":"2014-07-02T08:19:17","modified_gmt":"2014-07-02T00:19:17","slug":"three-js-study","status":"publish","type":"post","link":"http:\/\/blog.xuhao1.me\/?p=309","title":{"rendered":"Three.js study"},"content":{"rendered":"

\u9274\u4e8eUnity3D\u8d8a\u73a9\u8d8a\u86cb\u75bc\u3002\u3002\u9ebb\u70e6\u7684\u4e8b\u60c5\u592a\u591a\uff0c\u51b3\u5b9a\u629b\u5f03Unity3D\u5165\u5751three.js\uff0c\u5728\u8fd9\u91cc\u53d1\u53d1\u5b66\u4e60\u7b14\u8bb0<\/p>\n


\n\u9605\u8bfb\u672c\u6587\u8bf7\u5f00\u542fWebGL
\n\u9996\u5148\u662f\u6c34\u6c34\u7684Hello,World.<\/p>\n

\u6211\u4eec\u6765\u6839\u636e\u8fd9\u4e2a\u4ee3\u7801\u6765\u5206\u6790\u4e00\u4e0b\u7ed3\u6784<\/p>\n

    \n
  1. <html><\/span><\/li>\n
  2. \u00a0\u00a0\u00a0\u00a0<\/span><head><\/span><\/li>\n
  3. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><title><\/span>My\u00a0first\u00a0Three.js\u00a0app<\/span><\/title><\/span><\/li>\n
  4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><style><\/span>canvas\u00a0<\/span>{<\/span>\u00a0width<\/span>:<\/span>\u00a0<\/span>100<\/span>%;<\/span>\u00a0height<\/span>:<\/span>\u00a0<\/span>100<\/span>%<\/span>\u00a0<\/span>}<\/span><\/style><\/span><\/li>\n
  5. \u00a0\u00a0\u00a0\u00a0<\/span><\/head><\/span><\/li>\n
  6. \u00a0\u00a0\u00a0\u00a0<\/span><body><\/span><\/li>\n
  7. \u00a0\u00a0\u00a0\u00a0<\/span><script<\/span>\u00a0<\/span>src<\/span>=<\/span>“js\/three.min.js”<\/span>><\/script><\/span><\/li>\n
  8. \u00a0\u00a0\u00a0\u00a0<\/span><script><\/span><\/li>\n
  9. \u00a0\u00a0\u00a0\u00a0<\/span>\/\/\u00a0Our\u00a0Javascript\u00a0will\u00a0go\u00a0here.<\/span><\/li>\n
  10. \u00a0\u00a0\u00a0\u00a0<\/span>var<\/span>\u00a0scene\u00a0<\/span>=<\/span>\u00a0<\/span>new<\/span>\u00a0THREE<\/span>.<\/span>Scene<\/span>();<\/span><\/li>\n
  11. \u00a0\u00a0\u00a0\u00a0<\/span>var<\/span>\u00a0camera\u00a0<\/span>=<\/span>\u00a0<\/span>new<\/span>\u00a0THREE<\/span>.<\/span>PerspectiveCamera<\/span>(<\/span>\u00a0<\/span>75<\/span>,<\/span>\u00a0window<\/span>.<\/span>innerWidth\u00a0<\/span>\/<\/span>\u00a0window<\/span>.<\/span>innerHeight<\/span>,<\/span>\u00a0<\/span>0.1<\/span>,<\/span>\u00a0<\/span>1000<\/span>\u00a0<\/span>);<\/span><\/li>\n
  12. \u00a0\u00a0\u00a0\u00a0<\/span>var<\/span>\u00a0renderer\u00a0<\/span>=<\/span>\u00a0<\/span>new<\/span>\u00a0THREE<\/span>.<\/span>WebGLRenderer<\/span>();<\/span><\/li>\n
  13. \u00a0\u00a0\u00a0\u00a0renderer<\/span>.<\/span>setSize<\/span>(<\/span>\u00a0window<\/span>.<\/span>innerWidth<\/span>,<\/span>\u00a0window<\/span>.<\/span>innerHeight\u00a0<\/span>);<\/span><\/li>\n
  14. \u00a0\u00a0\u00a0\u00a0document<\/span>.<\/span>body<\/span>.<\/span>appendChild<\/span>(<\/span>\u00a0renderer<\/span>.<\/span>domElement\u00a0<\/span>);<\/span><\/li>\n
  15. \u00a0\u00a0\u00a0\u00a0<\/span>var<\/span>\u00a0geometry\u00a0<\/span>=<\/span>\u00a0<\/span>new<\/span>\u00a0THREE<\/span>.<\/span>CubeGeometry<\/span>(<\/span>1<\/span>,<\/span>1<\/span>,<\/span>1<\/span>);<\/span><\/li>\n
  16. \u00a0\u00a0\u00a0\u00a0<\/span>var<\/span>\u00a0material\u00a0<\/span>=<\/span>\u00a0<\/span>new<\/span>\u00a0THREE<\/span>.<\/span>MeshBasicMaterial<\/span>(<\/span>\u00a0<\/span>{<\/span>\u00a0color<\/span>:<\/span>\u00a0<\/span>0x00ff00<\/span>\u00a0<\/span>}<\/span>\u00a0<\/span>);<\/span><\/li>\n
  17. \u00a0\u00a0\u00a0\u00a0<\/span>var<\/span>\u00a0cube\u00a0<\/span>=<\/span>\u00a0<\/span>new<\/span>\u00a0THREE<\/span>.<\/span>Mesh<\/span>(<\/span>\u00a0geometry<\/span>,<\/span>\u00a0material\u00a0<\/span>);<\/span><\/li>\n
  18. \u00a0\u00a0\u00a0\u00a0scene<\/span>.<\/span>add<\/span>(<\/span>\u00a0cube\u00a0<\/span>);<\/span><\/li>\n
  19. \u00a0<\/span><\/li>\n
  20. \u00a0\u00a0\u00a0\u00a0camera<\/span>.<\/span>position<\/span>.<\/span>z\u00a0<\/span>=<\/span>\u00a0<\/span>3<\/span>;<\/span><\/li>\n
  21. \u00a0\u00a0\u00a0\u00a0camera<\/span>.<\/span>position<\/span>.<\/span>x\u00a0<\/span>=<\/span>\u00a0<\/span>0<\/span>;<\/span><\/li>\n
  22. \u00a0\u00a0\u00a0\u00a0camera<\/span>.<\/span>position<\/span>.<\/span>y\u00a0<\/span>=<\/span>\u00a0<\/span>0<\/span>;<\/span><\/li>\n
  23. \u00a0\u00a0\u00a0\u00a0<\/span>function<\/span>\u00a0render<\/span>()<\/span><\/li>\n
  24. \u00a0\u00a0\u00a0\u00a0<\/span>{<\/span><\/li>\n
  25. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cube<\/span>.<\/span>rotation<\/span>.<\/span>x\u00a0<\/span>+=<\/span>\u00a0<\/span>0.1<\/span>;<\/span><\/li>\n
  26. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cube<\/span>.<\/span>rotation<\/span>.<\/span>y\u00a0<\/span>+=<\/span>\u00a0<\/span>0.1<\/span>;<\/span><\/li>\n
  27. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0requestAnimationFrame<\/span>(<\/span>render<\/span>);<\/span><\/li>\n
  28. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0renderer<\/span>.<\/span>render<\/span>(<\/span>scene<\/span>,<\/span>\u00a0camera<\/span>);<\/span><\/li>\n
  29. \u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/li>\n
  30. \u00a0\u00a0\u00a0\u00a0render<\/span>();<\/span><\/li>\n
  31. \u00a0\u00a0\u00a0\u00a0<\/span><\/script><\/span><\/li>\n
  32. <\/body><\/span><\/li>\n
  33. <\/html><\/span><\/li>\n<\/ol>\n

     <\/p>\n

    \u6211\u4eec\u4e00\u70b9\u70b9\u770b\u54c8\uff1a<\/p>\n

    Line 10-12\u6211\u4eec\u65b0\u5efa\u4e86\u4e09\u4e2a\u5bf9\u8c61\uff1ascene camera render\uff0c\u4e00\u770b\u8fd9\u4e09\u4e2a\u5bf9\u8c61\u6211\u4eec\u5c31\u77e5\u9053three.js\u662f\u4e00\u4e2a\u9ad8\u5c42\u4e00\u4e9b\u7684\u6e32\u67d3\u5668\uff0c\u56e0\u4e3a\u5bf9\u6bd4\u4e8eOpenGL\u7684\u521d\u59cb\u5316demo<\/p>\n

      \n
    1. \u00a0\u00a0\u00a0<\/span>\/\/objective-cpp<\/span><\/li>\n
    2. \u00a0\u00a0\u00a0\u00a0<\/span>NSLog<\/span>(@<\/span>“u”<\/span>);<\/span><\/li>\n
    3. \u00a0\u00a0\u00a0\u00a0rad<\/span>=<\/span>20<\/span>;<\/span><\/li>\n
    4. \u00a0\u00a0\u00a0\u00a0cam0<\/span>=<\/span>new<\/span>\u00a0cam<\/span>(<\/span>\u00a0<\/span>–<\/span>rad<\/span>,<\/span>0<\/span>,<\/span>5<\/span>,<\/span>0<\/span>,<\/span>0<\/span>,<\/span>5<\/span>,<\/span>0<\/span>,<\/span>0<\/span>,<\/span>1<\/span>);<\/span><\/li>\n
    5. \u00a0\u00a0\u00a0\u00a0<\/span>NSLog<\/span>(@<\/span>“this”<\/span>);<\/span><\/li>\n
    6. \u00a0\u00a0\u00a0\u00a0glMatrixMode\u00a0<\/span>(<\/span>GL_PROJECTION<\/span>);<\/span><\/li>\n
    7. \u00a0\u00a0\u00a0\u00a0glEnable<\/span>(<\/span>GL_DEPTH_TEST<\/span>);<\/span><\/li>\n
    8. \u00a0\u00a0\u00a0\u00a0glHint<\/span>(<\/span>GL_PERSPECTIVE_CORRECTION_HINT<\/span>,<\/span>\u00a0GL_NICEST<\/span>);<\/span><\/li>\n
    9. \u00a0\u00a0\u00a0\u00a0gluPerspective<\/span>(<\/span>40<\/span>,<\/span>1.33333<\/span>,<\/span>0.01<\/span>,<\/span>1000<\/span>);<\/span><\/li>\n
    10. \u00a0\u00a0\u00a0\u00a0cam0<\/span>-><\/span>set<\/span>cam<\/span>()<\/span><\/li>\n<\/ol>\n

      \u9ad8\u4e0b\u7acb\u5224\u3002<\/p>\n

      \u5176\u5b9e\u8bf4\u6765WebGL\u548cOpenGL\u662f\u4e00\u4e2a\u5c42\u7ea7\u7684\uff0c\u4e0d\u8fc7\u6211\u4eec\u6ca1\u6709\u5fc3\u60c5\u53bb\u770b\u770bWebGL\u7684details\u3002<\/p>\n

      \u6211\u4eec\u7ee7\u7eed\u770b\u8fd9\u91cc\u662f\u6dfb\u52a0\u4e86\u4e00\u4e2adom\u4f5c\u4e3a\u663e\u793aWebGL\u5730\u65b9\uff0c\u7136\u540e\u8bbe\u7f6e\u7f51\u683c\u6750\u6599\u795e\u9a6c\u7684\u3002\u7136\u540e\u4e00\u4e2arender\u51fd\u6570\u663e\u793a\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4e0b\u9762\u67e5\u770b\u6548\u679c<\/p>\n

      [iframe src=”http:\/\/xuhao1.github.io\/three\/demo0.html” width=”100%”]<\/p>\n

      \u8bf7\u4e0d\u541d\u53bb https:\/\/github.com\/xuhao1\/xuhao1.github.io\/tree\/master\/three\u00a0\u67e5\u770b\u6e90\u4ee3\u7801\u3002<\/p>\n

      \u4e3a\u4e86\u4f7f\u8fd9\u4e2ademo\u66f4\u597d\u770b\u4e00\u70b9\uff0c\u6211\u4eec\u5f00\u59cb\u8bfbthreejs\u7684docs<\/a>\u5427<\/p>\n

      \u6bd4\u5982\u6211\u4eec\u52a0\u5165\u4e00\u4e2a\u8ba9\u6444\u50cf\u673a\u968f\u7740\u7269\u4f53\u65cb\u8f6c\u7684\u5c0f\u529f\u80fd\uff0c\u8981\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\uff0c\u76f8\u5f53\u4e8e\u6211\u4eec\u4f7f\u5f97camera\u7684\u89c2\u5bdf\u7269\u4f4d\u7f6e\u4e0d\u53d8\uff0c\u800ccamera\u5f97\u4f4d\u7f6e\u66f4\u65b0\u3002<\/p>\n

      \u6211\u4eec\u67e5\u770bdocs\uff0ccamera\u7ee7\u627f\u81eaobject3d\u7c7b\uff0c\u800ccamera\u81ea\u8eab\u6ca1\u6709\u63d0\u4f9b\u4e00\u4e2aposition \u6216\u8005location\u51fd\u6570\uff0cso\u6211\u4eec\u6253\u5f00object3d\u7684doc<\/p>\n

      \n

      .position<\/a><\/h3>\n
      Object’s local position.<\/div>\n<\/blockquote>\n

      \u6211\u4eec\u7ee7\u7eed\u67e5\u770b\u4e00\u4e0bposition\u7684doc<\/p>\n

      \n

      Properties<\/h2>\n

      .x<\/a><\/h3>\n

      .y<\/a><\/h3>\n

      .z<\/a><\/h3>\n<\/blockquote>\n

      \u5c31\u662f\u4ed6\u4e86\u3002<\/p>\n

      So\uff0c\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u5730\u8ba9x\u968f\u65f6\u95f4\u53d8\u5316,\uff0c\u5f53\u7136\uff0clookat\u7684\u65b9\u5411\u662f\u5728Global\u5750\u6807\u7cfb\u7684\uff0c\u6240\u4ee5\u5b9a\u70b9\u5373\u53ef\uff0c\u4f46\u662f\u5982\u679c\u4e0d\u6267\u884clookat\u51fd\u6570\uff0c\u5219\u89c6\u89d2\u65b9\u5411\u4f1a\u4e0d\u53d8\uff0c\u6240\u4ee5\u6709\u5173\u952e\u90e8\u5206\u4fee\u6539\u5982\u4e0b<\/p>\n

      \tcamera.position.z = 3;\r\n\tcamera.position.x = 0;\r\n\tcamera.position.y = 0;\r\n\tla=new Date().getTime();\r\n\ttime=0;\r\n\tfunction render()\r\n\t{\r\n\t\ttime+=0.01;\r\n\t\tcube.rotation.x =time;\r\n\t\tcube.rotation.y =time;\r\n\t\tcamera.position.z=Math.cos(time);\r\n\t\tcamera.position.y=Math.sin(time);\r\n\t\trequestAnimationFrame(render);\r\n\t\trenderer.render(scene, camera);\r\n\t\tvar now= (new Date()).getTime();\r\n\t\tvar t=now-la;\r\n\t\tvar fps=1000\/t;\r\n\t\t$(\"#fps\").text(\"FPS:\"+Math.round(fps));\r\n\t\tla=now;\r\n\t}\r\n<\/code><\/pre>\n
      So\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5982\u4e0b\u7684\u666f\u8c61<\/p>\n
      [iframe src=”http:\/\/xuhao1.github.io\/three\/demo1.html” width=”100%”]<\/p>\n
       <\/p>\n
      \u9898\u5916\u8bdd\uff0c\u6253\u5f00\u624b\u673a\u6d4b\u8bd5\uff0cit works.\u4e0d\u8fc7default\u7684\u80cc\u666f\u989c\u8272\u5728\u7535\u8111\u4e0a\u663e\u793a\u4e3a\u9ed1\u8272\uff0c\u624b\u673a\u4e0a\u4e3a\u767d\u8272<\/p>\n
      \u4e00\u4e2aBox\u662f\u4e0d\u662f\u5341\u5206\u7684boring\u5462\uff0cso \u6211\u4eec\u73a9\u70b9\u597d\u73a9\u7684\u6bd4\u5982\uff1a\u4e00\u67b6\u6b7c\u51fb\u673a\u3002<\/p>\n
      \"\u5c4f\u5e55\u5feb\u7167<\/a>\u65e9\u5e74\u4e0b\u8f7d\u7684\u4e00\u4e2aJ20\u6a21\u578b<\/p>\n
      \u8fd9\u4e2a\u662f\u5728Mac Preview\u91cc\u9762\u6253\u5f00\u7684\u6837\u5b50<\/p>\n
      In Unity3D<\/p>\n
      \"\u5c4f\u5e55\u5feb\u7167<\/a><\/p>\n
      \u6211\u4eec\u6765\u628a\u5b83\u5d4c\u5165\u5230\u6211\u4eec\u7684\u7f51\u9875\u91cc\u9762\u5427<\/p>\n
      \u6211\u4eec\u9996\u5148\u770b\u770b\u5982\u4f55\u52a0\u8f7d\u4e00\u4e2a\u6a21\u578b\uff0c\u6309\u7167\u6211\u4eec\u5df2\u6709\u7684\u77e5\u8bc6\uff08\u6ca1\u6709\u7684\u8bf7\u81ea\u884c\u9762\u58c1\u4e94\u5206\u949f\u540egoogle\u8ba1\u7b97\u673a\u56fe\u5f62\u5b66\uff09\uff0c\u51e0\u4e4e\u6240\u6709\u7684\u6a21\u578b\u6700\u540e\u90fd\u662f\u4e00\u5806\u4e09\u89d2\u5f62\uff0c\u6240\u4ee5\u95ee\u9898\u5c31\u5728\u4e8e\u600e\u4e48\u52a0\u8f7d\u8fd9\u4e2a\u4e09\u89d2\u5f62<\/p>\n
      \u6ce8\u610f\u5230<\/p>\n
      [code]var cube = new THREE.Mesh( geometry, material );[\/code]<\/p>\n
      \u8fd9\u884c\u4ee3\u7801\uff0c\u6211\u4eec\u4ece\u6750\u6599\u548c\u51e0\u4f55\u4e2d\u65b0\u5efa\u4e86\u4e00\u4e2amesh\uff0c\u7ffb\u770bMesh\u7684\u6784\u9020\u5668docs<\/p>\n
      \n
      Constructor<\/h2>\n
      Mesh(\u00a0geometry<\/a>,\u00a0material<\/a>\u00a0)<\/h3>\n
      geometry \u2014 An instance of\u00a0Geometry<\/a>.
      \nmaterial \u2014 An instance of\u00a0      Material<\/a>\u00a0(optional).<\/div>\n<\/blockquote>\n
      ok\uff0c\u6211\u4eec\u5148\u53eacare geometry<\/a><\/div>\n
      \u6211\u4eec\u770b\u5230Example<\/div>\n
      var geometry = new THREE.Geometry();\r\n\r\ngeometry.vertices.push( new THREE.Vector3( -10,  10, 0 ) );\r\ngeometry.vertices.push( new THREE.Vector3( -10, -10, 0 ) );\r\ngeometry.vertices.push( new THREE.Vector3(  10, -10, 0 ) );\r\n\r\ngeometry.faces.push( new THREE.Face3( 0, 1, 2 ) );\r\n\r\ngeometry.computeBoundingSphere();<\/pre>\n
      \u4ee5\u53ca\u4e00\u4e2a\u5c5e\u6027<\/p>\n
      \n
      .faces<\/a><\/h3>\n
      Array of\u00a0triangles<\/a>.
      \nThe array of faces describe how each vertex in the model is connected with each other.
      \nTo signal an update in this array,\u00a0      Geometry.elementsNeedUpdate<\/a>\u00a0needs to be set to true.<\/div>\n<\/blockquote>\n
      Exactly\u662f\u4e00\u5806\u4e09\u89d2\u5f62\uff0c\u4e0d\u8fc7\u8fd9\u4e2a\u64cd\u4f5c\u8fc7\u4e8e\u5e95\u5c42\uff0c\u5bf9\u4e8e\u9ad8\u9636\u7684API\u80af\u5b9a\u6709\u76f4\u63a5\u9762\u5411\u6a21\u578b\u6587\u4ef6\u7684\u63a5\u53e3\uff08\u6ca1\u6709\u7684\u8bddGithub\u4e0a\u9762\u4e5f\u4f1a\u6709\uff0c\u5426\u5219\u81ea\u5df1\u53ef\u4ee5\u5199\u4e00\u4e2a:D\uff09<\/p>\n
      \u5bf9\u4e8e\u5982\u4f55\u4ecestl\u7b49\u7c7b\u578b\u6587\u4ef6\u6784\u5efa\u4e00\u4e2a3D\u6a21\u578b\uff0c\u5728OpenGL\u6211\u4eec\u53ef\u4ee5\u5982\u6b64\u5904\u7406
      \n\u9996\u5148\u662fSTL\u7684\u683c\u5f0f\u5b9e\u4f8b<\/p>\n
      \r\nsolid CATIA STL ##\u521b\u5efa\u8005\r\n  facet normal  1.338878e-002  3.548179e-001 -9.348395e-001 ##\u4e09\u89d2\u9762\u7247\u6cd5\u5411\u91cf\u76843\u4e2a\u5206\u91cf\u3002\r\n    outer loop    ##\u5f00\u59cb\u4e00\u4e2a\u4e09\u89d2\u5f62\r\n      vertex -4.756082e+004 -3.870648e+004 -9.014685e+003  ##\u7b2c\u4e00\u4e2a\u70b9\r\n      vertex -8.777554e+004 -3.924620e+004 -9.795490e+003  ##\u7b2c\u4e8c\u4e2a\u70b9\r\n      vertex -5.185493e+004 -3.282061e+004 -6.842207e+003  ##\u7b2c\u4e09\u4e2a\u70b9\r\n    endloop\r\n  endfacet\r\n  facet normal -1.520681e-001 -5.632104e-001 -8.122004e-001\r\n    outer loop\r\n      vertex  2.404278e+005 -1.149134e+004 -8.663523e+003\r\n      vertex  2.134073e+005 -8.691770e+003 -5.545803e+003\r\n      vertex  2.309608e+005 -3.070673e+003 -1.273024e+004\r\n    endloop\r\n  endfacet\r\n...\r\n<\/code><\/pre>\n
      \u90a3\u4e48\u5904\u7406\u5c31\u662f\u4e00\u4e2a\u4e2a\u8bfb\u4e09\u89d2\u5f62\uff0c\u4e00\u4e2a\u4e2a\u753b\u51fa\u6765\u4e86<\/p>\n
      \r\n\/\/\u4ece\u6587\u4ef6\u521b\u9020\u7f51\u683c\r\nstlmodel::stlmodel(char*filepath,physx::PxRigidDynamic* actor):\r\n    list(0),xmodel(actor)\r\n{\r\n    std::ifstream file=std::ifstream(filepath);\r\n    string str;\r\n    while (!file.eof())\r\n    {\r\n        file>>str;\r\n        if(str==\"loop\")\r\n        {\r\n            triangle temp;\r\n            file>>temp;\r\n            list.push_back(temp); \r\n        }\r\n    }\r\n}\r\n\/\/\u7ed8\u5236\r\nGLuint stlmodel::model()\r\n{\r\n    if(maked==1)\r\n        return ptr;\r\n    maked=1;\r\n    long st=getCurrentTime();\r\n    ptr=glGenLists(1);\r\n    glNewList(ptr,GL_COMPILE);\r\n    glBegin(GL_TRIANGLES);\r\n    {\r\n        for(triangle e:list)\r\n        {\r\n            glColor3f(e.po1.x\/1+0.2,e.po1.z\/3+0.2,e.po1.y*2+0.2);\r\n            e.gldraw();\r\n        }\r\n    }\r\n    glEnd();\r\n    glEndList();\r\n    long ed=getCurrentTime();\r\n    return ptr;\r\n}\r\nvoid stlmodel::draw()\r\n{\r\n    updatepos();\r\n    \/\/printf(\"li:%f %f %f\\n\",pos.x,pos.y,pos.z );\r\n    glTranslatef(pos.x,pos.y,pos.z);              \/\/ \u5de6\u79fb 1.5 \u5355\u4f4d\uff0c\u5e76\u79fb\u5165\u5c4f\u5e55 6.0\r\n    glRotatef(angle,ax,ay,az);\r\n    glCallList(model());\r\n    glRotatef(-angle,ax,ay,az);\r\n    glTranslatef(-pos.x,-pos.y,-pos.z);             \/\/ \u5de6\u79fb 1.5 \u5355\u4f4d\uff0c\u5e76\u79fb\u5165\u5c4f\u5e55 6.0\r\n}\r\n\/\/\u91cd\u8f7d\u7684\u8f93\u5165\u6d41\u7ed9\u4e00\u4e2a\u5411\u91cf\r\nstd::istream& operator>>(std::istream& is,vector3f&objects)\r\n{\r\n    string str;\r\n    is>>str;\r\n    is>>objects.x;\r\n    is>>objects.y;\r\n    is>>objects.z;\r\n    return is;\r\n}\r\n\/\/\u91cd\u8f7d\u7684\u8f93\u5165\u6d41\u7ed9\u4e00\u4e2a\u4e09\u89d2\u5f62\r\nstd::istream& operator>>(std::istream& is,triangle&objects)\r\n{\r\n    is>>objects.po1;\r\n    is>>objects.po2;\r\n    is>>objects.po3;\r\n    string str;\r\n    is>>str;\r\n    return is;\r\n}<\/code><\/pre>\n
      \u6211\u4eec\u53ea\u9700\u8981simply use\u5c31\u53ef\u4ee5\u4e86\uff0c\u5148\u7528blender\u8f6c\u51fastl\u683c\u5f0f\uff0c\u7136\u540e\u518d\u8f6c\u6210json\uff0c\u8fd9\u6837\u5355\u4f4d\u8f6c\u6362\u95ee\u9898\u4e0d\u5927\uff0c\u8f6c\u6362\u8bf7\u4f7f\u7528<\/span><\/p>\n
      http:\/\/threejs.org\/editor\/<\/p>\n
      \u7136\u540e\u6211\u4eec\u53ef\u4ee5\u628a\u4ee3\u7801\u4fee\u6539\u5982\u4e0b<\/p>\n
      \r\n\t\/\/ Our Javascript will go here.\r\n\tvar scene = new THREE.Scene();\r\n\tvar camera = new THREE.PerspectiveCamera( 75, window.innerWidth \/ window.innerHeight, 0.1, 1000 );\r\n\tvar renderer = new THREE.WebGLRenderer();\r\n\trenderer.setSize( window.innerWidth*0.8, window.innerHeight*0.8 );\r\n\t$(\"#display\").append( renderer.domElement );\r\n\tvar geometry = new THREE.CubeGeometry(1,1,1);\r\n\tvar material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );\r\n\r\n\tcamera.position.z = 2;\r\n\tcamera.position.x = 2;\r\n\tcamera.position.y =\t2;\r\n\tla=new Date().getTime();\r\n\ttime=0;\r\n\tvar manager = new THREE.LoadingManager();\r\n\tmanager.onProgress = function ( item, loaded, total ) {\r\n\r\n\t\tconsole.log( item, loaded, total );\r\n\r\n\t};\r\n\r\n\tvar loader = new THREE.JSONLoader( manager );\r\n\tloader.load( '.\/models\/geo.json', function ( geo ) {\r\n\t\tcube = new THREE.Mesh( geo, material );\r\n\t\tcube.rotation.x =-3.1415926*0.5;\r\n\t\tscene.add( cube );\r\n\t} );\r\n\r\n\tfunction render()\r\n\t{\r\n\t\ttime+=0.01;\r\n\t\t\/\/cube.rotation.x =time;\r\n\t\t\/\/cube.rotation.y =time;\r\n\r\n\t\tcamera.position.x=Math.cos(time)*2;\r\n\t\tcamera.position.z=Math.sin(time)*2;\r\n\t\tcamera.lookAt( new THREE.Vector3(0,0,0) );\r\n\r\n\t\trequestAnimationFrame(render);\r\n\t\trenderer.render(scene, camera);\r\n\t\tvar now= (new Date()).getTime();\r\n\t\tvar t=now-la;\r\n\t\tvar fps=1000\/t;\r\n\t\t$(\"#fps\").text(\"FPS:\"+Math.round(fps));\r\n\t\tla=now;\r\n\t}\r\n\trender();<\/code><\/pre>\n
      \u7136\u540e\u663e\u793a\u5982\u4e0b
      \n[iframe src=”http:\/\/xuhao1.github.io\/three\/demo2.html” width=”100%”]
      \n\u8bf6\u3002\u3002\u6324\u5730\u94c1\u53bb\u4e86\u3002\u3002\u5404\u4f4d\u770b\u5b98\u4fdd\u91cd\uff0c\u6709\u4e8b\u8bf7\u7559\u8a00<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u9274\u4e8eUnity3D\u8d8a\u73a9\u8d8a\u86cb\u75bc\u3002\u3002\u9ebb\u70e6\u7684\u4e8b\u60c5\u592a\u591a\uff0c\u51b3\u5b9a\u629b\u5f03Unity3D\u5165\u5751three.js\uff0c\u5728\u8fd9\u91cc\u53d1\u53d1\u5b66\u4e60\u7b14\u8bb0<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=\/wp\/v2\/posts\/309"}],"collection":[{"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=309"}],"version-history":[{"count":34,"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=\/wp\/v2\/posts\/309\/revisions"}],"predecessor-version":[{"id":349,"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=\/wp\/v2\/posts\/309\/revisions\/349"}],"wp:attachment":[{"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=309"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xuhao1.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}