CN103106680B - Implementation method for three-dimensional figure render based on cloud computing framework and cloud service system - Google Patents
Implementation method for three-dimensional figure render based on cloud computing framework and cloud service system Download PDFInfo
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Abstract
The invention discloses an implementation method for three-dimensional figure render based on a cloud computing framework. The implementation method includes the steps that existing scene description is uploaded to a scene root explorer of a cloud service system, a model needed by a scene is analyzed by the scene root explorer, and the model is uploaded from a memory system. The belonging model is packaged, a scene object is set, a render instruction supported by a specific renderer is generated, and the render instruction is packed and is sent to a render system. After the render instruction returns to a render picture, the picture is transmitted to an application layer and is displayed. A user interacts with the application layer, the application layer captures action events, and the action events are transmitted to a cloud service layer according to a protocol. After the cloud service layer receives the action events, a scene is automatically adjusted on the background of the cloud service layer according to new action parameters. Format conversion of packaging and render instruction is carried out for a second time, then the action events are transmitted to the render system and are rendered by the render system, and finally the action events are displayed on the application layer anew. Therefore, interactive edit and display of a three-dimensional scene are achieved.
Description
Technical field
The present invention relates to a kind of Rendering of three-dimensional picture, particularly a kind of implementation method of Rendering of the three-dimensional picture based on cloud architecture and three-dimensional picture play up cloud service system.
Background technology
In three-dimensional graph process field, three-dimensional picture becomes final design sketch to be needed to play up computation process through complicated, render process can be divided into real-time rendering and photo level to play up two types, real-time rendering is higher to requirement of real-time, General Requirements is several pictures of output in 1 second, be mainly used in 3d gaming, three-dimensional model dynamic realtime is shown; Photo level is played up, and is intended to the real design sketch of output physics, is mainly used in the fields such as video display animation, advertisement plan, indoor design, industrial design.
At present, at IT internet arena, the application of RIA rich internet generally adopts the disposal route based on the built-in render engine of browser, three-dimensional picture scene is converted into the order of render engine, and be submitted to multiple browser built-in play up interface, utilize the computing power of local render engine, realize the function of display three-dimensional stereo effect in a browser.HTML5 Web GL, the Unity 3D, Flash Stage, Silver light 3D etc. of main flow belong to similar solution.
The implementation experience of a large amount of RIA rich internet application shows, it is larger that this type of scheme is subject to platform restraining factors, first poor compatibility, can accomplish with PC desktop, mobile phone, flat board, notebook computer and various kernel browser simultaneously compatible without any a kind of scheme at present; Cross-platform ability is weak, and on the equipment that the graphics calculations abilities such as mobile device are lower, three-dimensional rendering weak effect, cannot ensure real-time; Data bandwidth requirement is high, and the model of place data volume of three-dimensional picture is large, and the model data of an indoor scene three-dimensional picture reaches hundreds of million, needs to take a large amount of broadband resource and carries out network data transmission; Data security is poor, and because three-dimensional graphical model data need to be transmitted by internet, therefore in transmitting procedure, the model data of three-dimensional picture is easily cracked, and the copyright protection of infringement 3-dimensional digital content, is unfavorable for business long-run development.
In sum, the current implementation method based on the three-dimensional graphics renderer process of local render engine can not adapt to the demand of business development, need to realize a kind of photo level Rendering more advanced, safety, three-dimensional picture easily and system, thus internet, applications, mobile Internet can be helped to apply the displaying interaction forms realizing 3D application fast.
Summary of the invention
In order to solve the above problems, the invention provides the implementation method that a kind of quick high in the clouds of novel three-dimensional picture is played up, fundamentally change the render mode that tradition adopts local graphics hardware, avoid the data transmission of three-dimensional graphical model, accelerate three-dimensional graphical model and play up performance, improve the security of three-dimensional modeling data, provide simple, unified three-dimensional graphics renderer service interface, the compatibility, security, execution efficiency etc. of significant increase internet, applications, mobile Internet application and development three-dimensional display Interactive Experience pattern.
Present invention achieves the implementation method of a kind of novel three-dimensional scene interactivity formula editor and displaying, the method comprises the following steps: first to be loaded in the scene manager of cloud service system by scene description existing in storage system, scene manager analyzes model needed for this scene, and from storage system stress model, model belonging to assembling, scenario objects such as setting camera, light source etc., generate the rendering command that specific renderer is supported, rendering command packing is sent to rendering system, after waiting for that it returns and play up figure, image is transmitted to application layer and shows; User and application layer mutual, application layer catches action event, as additions and deletions change model and attribute thereof, additions and deletions change polygon and attribute, replacing scene, move camera, arrange light source, arrange rendering parameter etc., and these action event are sent to cloud service layer by agreement; After cloud service layer receives action event, by according to new action parameter, the backstage of service layer adjusts scene structure automatically beyond the clouds, again perform the format conversion of assembling and rendering command, rendering system is sent to play up, finally again be shown to application layer, thus complete a three-dimensional scenic interactive editing and displaying.
The present invention also provides a kind of novel three-dimensional numeral scene photo level to play up cloud service system, and this system comprises: Network communication service and SiteServer LBS and cluster, network english teaching system and cluster, business processing service system and cluster, rendering task management service system and cluster, high performance three-dimensional figure photos level play up service system and cluster, data security and authentication server, far management system, Service Operation support system, data-base cluster and distributed model and document scene storage system and cluster.
Network communication service and SiteServer LBS and cluster, be responsible for process and respond various internet, mobile interchange apply network request, and guarantee that the network request of magnanimity can effective load balancing, supervising the network communication session is correctly mated and is responded in time effectively simultaneously.
Network english teaching system and cluster, be responsible for the service request of network application such as process internet, mobile Internet etc., be responsible for correctly resolving from applying the service protocol bag received, identify the business operation request of application, as additions and deletions change model and attribute thereof, additions and deletions change polygon and attribute, replacing scene, move camera, arrange light source, arrange rendering parameter etc., and send business processing request to business processing service system.Network english teaching system is also responsible for receiving photo level rendering result from business processing service system, and the Information encapsulation such as result, the location expression of display area, supported motion action function three-dimensional scenic photo level played up becomes the protocol content of standard, and protocol content is transferred to network communication service system, send network application to by BlueDrama.
Business processing service system and cluster, realize the core business function of three-dimensional scenic photo level display.Be responsible for and network english teaching system docking, process three-dimensional scenic photo level plays up business function, comprises service request reception, business processing, business datum return.Three-dimensional model and scene indexed search, from Database Systems, inquiry three-dimensional model and parameter corresponding to scene, form, file store the information such as index.Three-dimensional model and document scene load, and from distributed model and document scene storage system, inquiry is reading model and document scene also.Scene action issued transaction, by the various actions of three-dimensional scenic as additions and deletions change model and attribute thereof, additions and deletions change polygon and attribute, replacing scene, move camera, arrange light source, arrange rendering parameter etc., are converted into the Parameter data information of scene.Service conversation manages, and is responsible for setting up and safeguarding that photo level plays up the session of business, comprises business information buffer memory, the storage of business scenario data etc.Be responsible for docking with rendering task management system, initiate the request of photo level rendering task, and the responsible result data receiving photo level and play up.
Rendering task management service system and cluster, be responsible for setting up and managing photo level rendering task.Rendering task creates, rendering task Data import, rendering task queue management, and rendering task contextual data stores, and rendering task is dispatched, rendering result data management etc.
High performance three-dimensional figure photos level rendering server cluster, by high performance graphics calculations server system, the three-dimensional scenic carrying out batch processing job mode is played up.
Data security and authentication server, be responsible for the data security of whole system and the certification of service authentication.Model data encryption safe manages, and uses the safety of asymmetric encryption mode protection model in transmitting procedure.The safety management of photo level rendering result file, provides the rendering result safety management function comprising the various ways such as picture watermark, brand message, resolution adjustment.Service authentication certification, confirms the legitimacy of service request, comprises that business is ageing, whether business pays.Network security certification, is responsible for the examination & verification of user profile, user security certificate.Be responsible for the encrypting and decrypting of network security passage.
Far management system server, provides unified service billing management service, comprises service package management, business use amount statistics, functional expenses accounting, expense revenue and expenditure control etc.
Service Operation support system, provides comprehensive operation support service function.Subscriber management function, comprises user's application, user profile editor, user profile inquiry etc.; Model management function, the functions such as model file is uploaded, model parameter configures, Model publish management.Scene management function, the functions such as document scene is uploaded, scenario parameters configures, the scene is released management.Service management function, opens photo level and plays up service, comprises the number of model and scene, shows the time cycle etc. of type, displaying; Adjustment photo level plays up the function of service business, comprises the number of increase displaying model and scene, type is shown in adjustment, extend the displaying cycle etc.
Database storage system and cluster, for system provides unified data storage service, and build safety, healthy and strong database purchase cluster.
Distributed model and document scene storage system cluster, provide high-performance, high expansion, the three-dimensional model of High Availabitity and document scene storage system, can support the three-dimensional model and document scene that store magnanimity.
The present invention also provides, and the connection protocol based on the standard common services interface object of internet describes, for Unified Field scene describing and rendering parameter, and the access of the multiple applications of specification.Contextual data stores with XML serializing object approach form by agreement, and framing is transmitted.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the present invention is described in detail, of the present invention above and other objects, other advantages of characteristic sum will be more clear.
Fig. 1 is total system network structure topological diagram of the present invention.
Fig. 2 is system logic structure figure of the present invention.
Fig. 3 is that the application layer under top view pattern of the present invention shows interface.
Fig. 4 is that the application layer under orthogonal view pattern of the present invention shows interface.
Fig. 5 is initialization scene process flow diagram of the present invention.
Fig. 6 is that the present invention revises scene process flow diagram.
Fig. 7 is that the present invention uploads model and scene process flow diagram.
Fig. 8 is user of the present invention and system components interaction flow.
Fig. 9 is backstage of the present invention rendering task start flow.
Figure 10 is that multi-level buffer model of the present invention loads process flow diagram.
Figure 11 is that video stream compression of the present invention conciliates compression process figure.
Figure 12 is model signatures authorization flow figure of the present invention.
Figure 13 is channel encryption browsing process figure of the present invention.
Figure 14 is load balancing and the failover process flow diagram that the present invention plays up service.
Figure 15 is that distributed model of the present invention reads process flow diagram.
Figure 16 is log collection process flow diagram of the present invention.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the invention will be further described.
Fig. 1 is total system network structure of the present invention.Photo level shown in Fig. 1 is played up cloud service system structure and is comprised: client 1-1, and the result being used for realizing the operation of interactive scene rendering presents.The agreement 1-2 of client's side link server, this agreement designs based on Internet standard.Photo level plays up cloud server end 1-3, and this server comprises fire wall 1-3-1, provides network security protection, prevents the network attack from outside; Network communication service load-balanced server 1-3-2, provides load balance scheduling and the failover work of HTTP request; Network communication service system cluster 1-3-3, supervising the network communication session is correctly mated and is responded in time effectively; Network english teaching system cluster 1-3-4, is responsible for the service request of network application such as process internet, mobile Internet etc.; Data security and authentication server 1-3-5, be responsible for the data security of whole system and the certification of service authentication; Business processing service system cluster 1-3-6, realizes the core business function of high in the clouds three-dimensional scenic management; Service Operation support system server 1-3-7, provides comprehensive operation support service function; Rendering task management service system cluster 1-3-8, is responsible for setting up and managing photo level rendering task; Far management system server 1-3-9, provides unified service billing management service; Database storage system cluster 1-3-10, for system provides unified data storage service, and builds safety, healthy and strong database purchase cluster; Fire wall 1-3-11, provides the network security protection of render engine server; High performance three-dimensional scene photo level rendering server cluster 1-3-12, by high performance graphics calculations server system, carries out efficient three-dimensional data model and plays up; Fire wall 1-3-13, the network security protection of the document storage system server that supplies a model; Distributed model document storage system cluster 1-3-14, provides the three-dimensional model document storage system of high-performance, high expansion, High Availabitity.
Fig. 2 is system architecture diagram of the present invention.Native system comprises: application layer, comprises 2-1-1 three-dimensional scenic and shows interface, 2-1-2 three-dimensional scenic administration interface, and provide corresponding 2-1-3 internet standard protocol and 2-1-4 network communication system.Operation layer, comprises 2-2-1 data security and authentication server, is responsible for the data security of whole system and the certification of service authentication; 2-2-2 Network communication service system, provides network interface and load balancing service; 2-2-3 network english teaching system, being responsible for correctly resolving from applying the service protocol bag received, identifying the business operation request of application; 2-2-4 business processing service system, realizes the core business function of three-dimensional scenic management, comprises that three-dimensional scenic photo level is played up, three-dimensional model and scene management etc.; 2-2-5 rendering task management service system, is responsible for setting up and managing photo level rendering task; 2-2-6 far management system, provides unified service billing management service; 2-2-7 Service Operation support system, provides the merit such as subscriber management function, service management.Rendering layer, comprises 2-3-1 high performance three-dimensional scene photo level and plays up service system, provide the network interface playing up software and hardware and correspondence of plurality of specifications.Data Layer, comprises 2-4-1 model file storage system, deposits the model data of magnanimity; 2-4-2 data-base cluster, storing subscriber information and rendering task information.
Fig. 3 is that the application layer under top view pattern of the present invention shows interface.Native system adopts pictorial manner to show three-dimensional scenic, comprises 3-1 application interface, and application adopts webpage mode to build, and comprise 3-2 model object some, each model comprises ID, position, direction attribute; 3-3 light source object is some, and each light source comprises ID, position, direction attribute; 3-4 polygon object is some, comprises apex coordinate, material properties; 3-5 camera object, comprises locality attribute.
Fig. 4 is that the application layer under orthogonal view pattern of the present invention shows interface.Similar with top view scene display interface, comprise 4-1 application interface, application adopts webpage mode to build, and 4-2 model object is some, and each model comprises ID, position, direction attribute; 4-3 polygon object is some, comprises apex coordinate, material properties.
Interface uses two kinds of same scenes of view shows, can switch between top view and orthogonal view at any time, operates, apply by standard format and backstage interaction data in two kinds of views of user interface.Such as, the scene of Fig. 3 and Fig. 4 can be described as according to standard common services interface Object Protocol:
<?xml version="1.0" encoding="utf-8"?>
<scene>
<camera eye="200, -2300, 1000" target="0, 0, 1000"
up="0, 0, 1" fovx="1.7"/>
<assemblyList>
<assembly id="789" ver="1" position="-120, 1000, 900"
rotation="0, 0, -1.57" scale="1, 1, 1"/>
……
</assemblyList>
<polygonList>
<polygon front-material="101" back-material="102">
<point val="2000, 2000, 0"/>
<point val="2000, -2000, 0/>
<point val="-2000, -2000, 0/>
<point val="-2000, 2000, 0/>
</polygon>
……
</polygonList>
<output width="800" height="600" format="jpeg"
compress="0.5"/>
<renderer product="MR" version="3.9" maxDepth="10" doubleSide="false" priority="0"/>
</scene>
The main body scene of XML describes the rendering command of a frame, and order is logically divided into camera(camera), assemblyList(assembling list), the list of polygonList(polygon), output(exports), renderer(renderer) five pieces of compositions.Wherein camera adopts classical LookAt camera model three attribute eye, target, up form, and fovx represents the visual field in screen coordinate x-axis; AssemblyList comprises some assembly structures, and each assembly specifies the PRS that the model ID of assembling, version and local thereof turn world coordinate system and converts parameter; PolygonList comprises some polygon structures, and each polygon comprises positive and negative material properties ID, comprises the sub-attribute in some summits; Output describes the size of output, form and compressibility; Renderer comprises appointment renderer and the additional parameter required for renderer.
Below in conjunction with Fig. 5 to Figure 16, network system realization of the present invention is described.
Fig. 5 is initialization scene flow process of the present invention.In step S101-S102, application module is to right discriminating system application mandate.In step s 103, application module sends initialization scene command to Service Processing Module.In step S104-S106, Service Processing Module reads scene description from storage system, and analyzes scene, again accesses the model of storage system reading required for scene.In step S107-S109, Service Processing Module organizes rendering command, sends to rendering module, and obtains result.In step s 110, Service Processing Module returns to the design sketch applying initial scene.
Fig. 6 is that the present invention revises scene flow process.In step S201-S202, application module is to right discriminating system application mandate.In step S203, application module sends amendment scene command to Service Processing Module.In step S204-S205, the scene description in Service Processing Module amendment current sessions, and read newly-increased model data from storage system on demand.In step S206-S208, Service Processing Module organizes rendering command, sends to rendering module and obtains result.In step S209, amended design sketch is sent to application by Service Processing Module.
Fig. 7 is that the present invention uploads model and scene flow process.In step S301-S302, application module is to right discriminating system application mandate.In step S303, application module submits models/scenarios to Service Operation support system.In step S304-S305, Service Operation support system, respectively to the mandate of authentication and charge system inquiring user and charge information, determines whether to allow this time request.In step S306-S307, models/scenarios is sent to model and scene management module by Service Operation back-up system, is finally stored in distributed model and document scene storage.In step S308-S309, model and scene management module are back into function signal to Service Operation back-up system, and final notice application module is uploaded successfully.
Fig. 8 is user of the present invention and system components interaction flow.In step S401, user sends UI action to intelligent terminal.In step S402, action is translated as application layer protocol and sends to cloud front end applications cluster by intelligent terminal.In step S403-S404, cloud front end applications cluster has access to model data to cloud memory model storehouse cluster.In step S405, Applied layer interface protocol translation is publicly play up Service interface protocol and send to cloud rear end render farm by cloud front end.In step S406-S407, cloud rear end render farm has access to model data to cloud memory model storehouse cluster.In step S408, cloud rear end render farm renders design sketch.In step S409-S411, design sketch mails to front end by rear end and mails to intelligent terminal again, finally presents in front of the user.In step S412-S414, central log and charge system extract local daily record from system components.In step S415, central log and charge system are filtered and are generated bill and form with statistics.In step S416, bill and form are supplied to operation personnel by central log and charge system.
Fig. 9 is backstage of the present invention rendering task start flow.In step S501, RIA application initiates rendering task with application scenarios description form to application layer adapter.In step S502-S503, adapter is responsible for scene description to transfer to from application form to play up standard format, and calls common services interface.In step S504-S505, common services interface plays up operation module by being transmitted to after task queue.In step S506-507, play up operation module and resolve rendering task reads needs model file from model cache module.In step S508-S513, play up operation module and send rendering command to renderer according to a definite sequence, and obtain device independent bit.In step S514-S517, common services interface, by after bits compression, returns to initial caller successively.
Figure 10 is that multi-level buffer model of the present invention loads flow process.In step s 601, model user initiates read requests to cloud memory model storehouse cluster.In step S602-S606, cloud memory model storehouse cluster successively reads the timestamp of this model in local model bank, local disk, and contrast difference.In step S607, cloud memory model storehouse cluster notice local disk is the need of renewal.In step S608, local disk initiates garbage reclamation.In step S609, local model bank is to local disk Renewal model.In step S610-S612, cloud memory model storehouse cluster reads the timestamp of this model in local internal memory and contrasts with timestamp before.In step s 13, cloud memory model storehouse cluster notifies that local internal memory is the need of renewal.In step S614, local internal memory initiates garbage reclamation.In step S615, local disk is to local memory refreshing model.In step S616, cloud memory model storehouse cluster returns to the address of model in internal memory to model user.In step S617-S618, model user reads the model data in internal memory.
Figure 11 is the mutual flow process of rendering data of the present invention.In step s 701, the device independent bit that wash with watercolours is good is sent to compression module by common services interface.In step S702, compression module modulation FFDShow engine.In step S703-S708, bits compression is video flowing by FFDShow engine, returns key frame marker and difference data/key frame data.In step S709-710, video flowing decompress(ion) to contract display by RIA application.
Figure 12 is model signatures authorization flow of the present invention.In step S801-S803, model user sends to authorization node user side certificate, pattern number and version; In step S804-805, authorization node extracts client authorization information from certificate and authorization database, the legitimacy of checking client, and generates interim model grant number; In step S806-S807, newly-established grant number and corresponding user side certificate are put on record stored in database by authorization node; In step S808-S809, authorization node is to cache node transmission pattern number and version; In step S810, model bag taken by cache node access storer; In step S811, model bag is sent to authorization node by cache node; In step S812, authorization node is to model packet signature; In step S813, Signature model bag is sent to model user by authorization node.
Figure 13 is channel encryption browsing process of the present invention.In step S901, channel encryption node (client) initiates connection request to channel encryption node (service end).In step S902, server returns asymmetric public key.In step S903, client produces random symmetric session key.In step S904, client uses asymmetric public key encrypted session key.In step S905, the session key after encryption is sent to service end by client.In step S906-S912, both sides use the session key of crypto-sync to carry out asking, the communication of feedback system.
Figure 14 is load balancing and the failover flow process that the present invention plays up service.In step S1001, the request of playing up is sent to load balancing node by common services interface.In step S1002, load balancing node employing load-balancing algorithm determines that equipment idle is at present node A.In the step s 1003, load balancing node by request forward to node A.In step S1004, rendering node A does not return response model at the appointed time to load balancing node.In step S1005, load balancing node includes node A in inefficacy list.In step S1006, load balancing node by request forward to Node B.In step S1007, rendering node B starts working.In step S1008-S1009, rendering result sends to load balancing node by rendering node B and is transmitted to common services interface.
Figure 15 is that distributed model of the present invention reads flow process.In step S1101, model ID, version are sent to distributed index node by model user.In step S1102, the cryptographic hash of distributed index node calculate request msg also inquires about size.In step S1103, the RAID node address code after distributed index node calculate burst.In step S1104-S1106, distributed index node is simultaneously to the data fragmentation that the request of different RAID disk group is different.In step S1107-S1112, each RAID disk group is read disk in asynchronism and concurrency mode and returns.In step S1113, fragment data merges by distributed index module.In step S1114, distributed index modular model report returns to model user.
Figure 16 is log collection flow process of the present invention.In step S1201, log collection processor extracts daily record with polling mode from (multiple) local log database.In step S1202, daily record is filtered and is merged by log collection processor.In step S1203, the daily record after filtration is stored into central log database by log collection processor.In step S1204, charge node extracts log packet from central log database.In step S1205, charge node performs interior business logical operation.In step S1206, charge node feeds back bill and form to operation personnel.
Although patent of the present invention is described by embodiment, embodiment is not used for limiting the present invention.Those skilled in the art in the scope of spirit of the present invention, can make various distortion and improvement, but equally within the protection domain of invention.What therefore protection scope of the present invention should define with the claims of the application is as the criterion.
Claims (9)
1. the cloud service system based on the three-dimensional graphics renderer of cloud computing framework, this system comprises: Network communication service and SiteServer LBS and cluster, network english teaching system and cluster, business processing service system and cluster, rendering task management service system and cluster, high performance three-dimensional figure photos level play up service system and cluster, data security and authentication server, Service Operation support system, database storage system and cluster, and distributed model and document scene storage system cluster; It is characterized in that:
Described Network communication service and SiteServer LBS and cluster, be responsible for process and respond various internet, mobile interchange apply network request, and guarantee that the network request of magnanimity can effective load balancing, supervising the network communication session is correctly mated and is responded in time effectively simultaneously;
Described network english teaching system and cluster, be responsible for the service request of process internet, mobile Internet network application, being responsible for correctly resolving from applying the service protocol bag received, identifying the business operation request of application, and sending business processing request to business processing service system;
Described business processing service system and cluster, realize the core business function of three-dimensional scenic photo level display, be responsible for and network english teaching system docking, process three-dimensional scenic photo level plays up business function, comprises service request reception, business processing, business datum return;
Described rendering task management service system and cluster, be responsible for setting up and managing photo level rendering task, rendering task creates, rendering task Data import, rendering task queue management, rendering task contextual data stores, and rendering task is dispatched, rendering result data management;
Described high performance three-dimensional figure photos level rendering server cluster, by high performance graphics calculations server system, the three-dimensional scenic carrying out batch processing job mode is played up;
Described data security and authentication server, be responsible for the data security of whole system and the certification of service authentication;
Described Service Operation support system, provides comprehensive operation support service function;
Described database storage system and cluster, for system provides unified data storage service, and build safety, healthy and strong database purchase cluster;
Described distributed model and document scene storage system cluster, provide high-performance, high expansion, the three-dimensional model of High Availabitity and document scene storage system, can support the three-dimensional model and document scene that store magnanimity.
2. the cloud service system of the three-dimensional graphics renderer based on cloud computing framework according to claim 1, is characterized in that:
Described network english teaching system and cluster, also be responsible for receiving photo level rendering result from business processing service system, and result three-dimensional scenic photo level played up, the location expression of display area, supported motion action function information are packaged into the protocol content of standard, and protocol content is transferred to network communication service system, send network application to by BlueDrama.
3. the cloud service system of the three-dimensional graphics renderer based on cloud computing framework according to claim 1, is characterized in that:
Described business processing service system and cluster, also comprise three-dimensional model and scene indexed search unit, and from Database Systems, inquiry three-dimensional model and parameter corresponding to scene, form, file store index information; Three-dimensional model and document scene loading unit, from distributed model and document scene storage system, inquiry is reading model and document scene also; Scene action issued transaction unit, by the various actions of three-dimensional scenic, is converted into the Parameter data information of scene; Service conversation administrative unit, is responsible for setting up and safeguarding that photo level plays up the session of business, comprises business information buffer memory, business scenario data store; Docking request reception unit, is responsible for docking with rendering task management system, initiates the request of photo level rendering task, and the responsible result data receiving photo level and play up.
4. the cloud service system of the three-dimensional graphics renderer based on cloud computing framework according to claim 1, is characterized in that:
Described data security and authentication server, also comprise model data encryption safe administrative unit, uses the safety of asymmetric encryption mode protection model in transmitting procedure; The security managing unit of photo level rendering result file, provides the rendering result safety management function comprising picture watermark, brand message, resolution adjustment various ways; Service authentication authentication ' unit, confirms the legitimacy of service request, comprises that business is ageing, whether business pays; Network security certification unit, is responsible for the examination & verification of user profile, user security certificate; Be responsible for the encrypting and decrypting of network security passage.
5. the cloud service system of the three-dimensional graphics renderer based on cloud computing framework according to claim 1, is characterized in that:
Described Service Operation support system, also comprises service management unit, comprises user's application, user profile editor, user profile inquiry; Model management unit, model file is uploaded, model parameter configures, Model publish management function; Scene management unit, document scene is uploaded, scenario parameters configures, the scene is released management function; Service Management Unit, opens photo level and plays up service, comprises the number of model and scene, shows the time cycle of type, displaying; Adjustment photo level plays up service business unit, comprises the number of increase displaying model and scene, type is shown in adjustment, extend the displaying cycle.
6. according to the cloud service system of the three-dimensional graphics renderer based on cloud computing framework one of claim 1 to 5 Suo Shu, it is characterized in that: it also comprises far management system server, unified service billing management service is provided, comprises service package management, business use amount statistics, functional expenses accounting, expense revenue and expenditure control.
7. the cloud service system of the three-dimensional graphics renderer based on cloud computing framework according to claim 6, it is characterized in that: the connection protocol based on the standard common services interface object of internet describes, for Unified Field scene describing and rendering parameter, the access of the multiple applications of specification; Contextual data stores with XML serializing object approach form by agreement, and framing is transmitted.
8. the implementation method based on the three-dimensional graphics renderer of cloud computing framework, scene description existing in storage system is loaded in the scene manager of cloud service system, scene manager analyzes model needed for this scene, and from storage system stress model, assembling belonging to model, set scene object, generate the rendering command that specific renderer is supported, rendering command packing is sent to rendering system, after waiting for that it returns and play up figure, image is transmitted to application layer and shows; Alternately, application layer catches action event, and these action event are sent to cloud service layer by agreement for user and application layer; After cloud service layer receives action event, by according to new action parameter, the backstage of service layer adjusts scene structure automatically beyond the clouds, again perform the format conversion of assembling and rendering command, rendering system is sent to play up, finally again be shown to application layer, thus complete a three-dimensional scenic interactive editing and displaying; It is characterized in that: specifically comprise the following steps:
Initialization scene step: application layer is by the legitimacy of right discriminating system authenticated; The service request of initialization three-dimensional scenic is submitted to cloud service system; Service Processing Module reads scene description document from model and document scene storage service system; Three-dimensional model in loading scenario, packing three-dimensional scenic file data bag; Rendering task request is submitted to rendering module; The rendering result handled well is fed back to application layer by rendering module;
Amendment scene step: application layer is by the legitimacy of right discriminating system authenticated; The service request of initialization three-dimensional scenic amendment is submitted to cloud service system; According to the command description of amendment scene, the data cached bag of adjustment three-dimensional scenic; The three-dimensional scenic file data bag of packing new, submits rendering task request to rendering module; After rendering module is played up again, by result feedback to application layer;
Upload model and scene step: application layer is by the legitimacy of right discriminating system authenticated; To the request that Service Operation support system submits to three-dimensional model to upload; The charge information that model data is relevant is transferred to charge system by Service Operation support system; Model data store in distributed file system, and is returned result to application layer by model and scene management module;
User and cloud service system interactive step: user submits service protocol by application layer to cloud service system; High in the clouds application service layer analysis protocol, reads the model data of specifying to cloud storage system application; By the public interface playing up agreement, submit to cloud rear end render farm and play up request; Rendering result is transferred to user application layer by high in the clouds application service layer; Daily record in cloud service system each subsystem record traffic implementation, and add up three-dimensional rendering charge information;
Backstage rendering task initiates step: RIA internet, applications service layer by the description protocol transmission of three-dimensional scenic to application adaptation layer; The rendering task description document of application adaptation layer assembling three-dimensional scenic, and be transferred to by common services interface and play up operation module; Play up operation module, the queue of management rendering task, and load the three-dimensional modeling data file required for three-dimensional scenic from model cache module; According to renderer protocol requirement, various rendering command is sent in renderer, obtains correct rendering result; Rendering result is carried out data compression or format conversion processing by common services interface, and returns to RIA internet, applications layer;
Multi-level buffer model load step: model user initiates model read request to model cloud storage cluster; Cloud memory model storehouse cluster successively reads the timestamp of this model in local model bank, local disk, and contrast difference; Cloud memory model storehouse cluster notice local disk is the need of renewal; Local disk initiates garbage reclamation; Local model bank is to local disk Renewal model; Cloud memory model storehouse cluster reads the timestamp of this model in local internal memory and contrasts with timestamp before; Cloud memory model storehouse cluster notifies that local internal memory is the need of renewal; Local internal memory initiates garbage reclamation; Local disk is to local memory refreshing model; Cloud memory model storehouse cluster returns to the address of model in internal memory to model user; Model user reads the model data in internal memory;
The step that rendering data is mutual: the device independent bit that wash with watercolours is good is sent to compression module by common services interface; Compression module modulation FFDShow engine; Bits compression is video flowing by FFDShow engine, returns key frame marker and difference data/key frame data; Video flowing decompress(ion) to contract display by RIA application.
9. the implementation method of the three-dimensional graphics renderer based on cloud computing framework according to claim 8, it is characterized in that, it is further comprising the steps of:
Model signatures authorisation step: model uses the legitimacy by authorization node checking client, and generates interim model grant number; Newly-established grant number and corresponding user side certificate are put on record stored in database by authorization node; Authorization node is to cache node transmission pattern number and version; Model bag taken by cache node access storer; Model bag is sent to authorization node by cache node; Authorization node is to model packet signature; Signature model bag is sent to model user by authorization node;
Channel encryption accessing step: client channel encryption node initiates connection request to service end channel encryption node; Server returns asymmetric public key; Client produces random symmetric session key; Client uses asymmetric public key encrypted session key; Session key after encryption is sent to service end by client;
Play up load balancing and the failover step of service: the request of playing up is sent to load balancing node by common services interface; Carrying balanced node adopts load-balancing algorithm to determine equipment idle at present; Request forward is given idle rendering apparatus by load balancing node; Rendering result is by load balancing node and be transmitted to common services interface;
Distributed model read step: model ID, version are sent to distributed index node by model user; Distributed index node calculate RAID node address code; Reading model data file, and return to model user;
Log collection step: log collection processor extracts daily record with polling mode from local log database; Daily record is filtered and is merged by log collection processor; Daily record after filtration is stored into central log database by log collection processor; Charge node extracts log packet from central log database; Charge node performs interior business logical operation; Charge node feeds back bill and form to operation personnel.
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