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6.5.1? ?a???j?3D?ó?'3D?ó???á???a?APICoreGKSPHIGSPEXGLDoreRenderManHoopsOpenGL????jOpenGL???3D????UnixPC??õ??áOpenGL????????3D????3D??ó??eL?h?L???????û? OpenGL?????????S?????L?OpenGL i????C??õK?ó??????????a?????(3D Toolkit3D Engine)OpenGL?Open InventorIRIS PerFORMerOptimeizer/Cosmo3D?GLUT??Open Inventor???3D?g???ûh3D??3DL?????? z?µ?????L?????????Distributed Virtual Environments, DVEs????Computer Supported Cooperative Work, CSCW???????õ??DVEs??DIVEdVSMRRepo-3D??DVEs???3D?L???????õ3DOpen Inventor??????????????????DVEs??3D??'á ??3D?PC?????L??????5.8?? 1Intra3D 2.0?OpenGL?ý??????Window 9x/NTµL???? 2CNC 1.0???????Cooperative Network Communicator??g???g?kAPI Intra3D 2.0CNC 1.0?????L????
Intra3D 2.0l?????????ûC++COMComponent Object Model??Visual C++Visual BasicDelphi??ñ?Intra3Dl??? 1h??Basic Objects and Functions 2??????Graphical Objects 3????Scene Graph and Nodes 4???Rendering and Interaction ???5.9????õ????ø??
6.5.2.1?g? h? 1?ü?? 2???? 3?????e?? 4?????BMPGIFJPEGSGITGA?? 5ü??L??????Swept?L? 6?450?????????? ?? ?????g???Intra3D 2.0??? 1ü??????????Swept? 2g????Autodesk?.3dsg?Wavefront?.objg? 3?????????????????? ?????û'ü??µ??????L ?? ?Scene Graph??Scene Graph???1SceneNode??L?SceneNode???????a????????2??CameraNode??????????3???????(DirLightNode)??(PointLightNode)???(SpotLightNode)4??ShapeNode??????ShapeNode g? Intra3DL?h?????h??i?Intra3D??SceneView????????io??????????Intra3Dh?ö???FontDialog??ColorDialog??MaterialLibDialog??MaterialDialog??DirLightDialog, PointLightDialog, SpotLightDialog
6.5.2.2û Intra3D??SceneView???3D?ó?SceneView?selectingscalingrotatingtranslatingcreatingdeleting?????5.10? ????????3D ??MicrosoftJ???3DK??'Intra3DWindow3D???3D??5.11????5.12???'Window3D??3D???õL?i???i???g???L?HSVRGBg???Intra3Dg???????L??5.13?5.14??????
CNC ??gg???L???Producer?L???Consumer??????ÿ???????h??CNC?????CNCgg TCP???g ?? g????ÿ?????????CNCg?UDP???g
CNCClient???g???????£ class CNCClient { public: BOOL Connect(); // ? BOOL Disconnect(); // ? BOOL PublishData(); // BOOL QueryData(); // ? BOOL SubscribeData(); // GROUPIP QueryGroupIP(); // ??? DWORD MulticastMessage(); // ?? virtual void MessageResponse();// ???
}; h?g? ?ÿ??oo???????5.16??? DataPublish struct DataPublish { BYTE iDataType; // 2 ????DATA_PUBLISH char strGroupName[16]; // 16??L char strDataName[16]; // 16?? DWORD dwLifeTime; // 4 ????? DWORD dwLength; // 4 ???? char *pchContent; // };
???? 1?úQueryDatah DataQuery?ig???j?? struct DataQuery { BYTE iDataType; // 2 ????DATA_QUERY char strGroupName[16]; // 16??L char strDataName[16]; // 16?? }; 2??? DataQuery??strGroupNamestrDataName??ServerClienthFALSE????hTRUE?????DataPublish? ?õTRUE????úSubscribeData???
?g?? ??úQueryGroupIPhGroupAddress?ig????????IP? struct GroupAddress { BYTE iDataType; // 2 ????GROUP_ADDRESS char strGroupName[16]; // 16??L }; ?úMulticastMessage???????? DataMulticast£ struct DataMulticast { DWORD dwContentType; //???û char *pchContent; //???û }; ?????úMessageResponse??MessageResponse?dwContentType?d???û?
6.5.3.2CNC h?? CNC ???? 1h???????????? 2h???ö?_'?? 3ÿ?h?g?Hash?h????????J?????????Hash????Hash??DataElement struct DataElement { char strGroupName[16]; // char strDataName[16]; // ? BYTE iStorageType; // ?? STORAGE_FILE STORAGE_MEMORY ColeDateTime TimeToDie; // ? BOOL bLock; // ? TRUE FALSE DWORD dwLength; // ?? char *pchContent; // };
??iStorageType;????k????û??g??'?????????????STORAGE_MEMORY???????l??STORAGE_FILE? ??TimeToDie;???????????Hash???û??? ?bLock;???????????????????iLock????
?_ h???????????h?TCP?ÿ??CNC API????????????????????CNC ???????
Winsock' CNC 1.0Windows 9x/NT??£???Winsock?Winsock??????w??????á?'?ó?????Windows ???gw?????ó????'?ó??????????????ó????ó????? ?????CNC ????_÷?????????÷???????k?h??k??
6.5.4?? ?5.17?5.18?µ????Intra3D 2.0 CNC 1.0?5.17??CNC .3ds .obj?Kg????o?5.18??CNC ???????oh??CNC ?????j?ô?? Intra3D 2.0CNC 1.0?j??ã?? 3D?Quake?Michael Abrash L??£?h?ãôl?????ý??L??wU[Abrash 1998]
7.1C++??
class B : public A // Example ????h?C++g???????????á?ã??á?????h?'ù 2?ABgh?a part ofB?AL??A?B?Eye?Nose?MouthEar?Headh?Head?EyeNoseMouthEar??g?£ // ???? HeadEyeNoseMouthEar?ôHead?Look SmellEatListen?? 7.1.3?? void Test(A *a) class B : public A // Example ?????ô???????? void Test(A *a) class B : public A // Example A£ 7.2õi? ????????Z?õi??j? 7.2.3newdelete? // ?'p ??????????????? 7.2.4'const ???const? h??&*???ããô??òjconst?J?iò?i?ò??????lgh?ö? ????i???? int Stack::Count(void) const 7.2.5 4???= =?g=?? 8J ??W?L?h???h??L??
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