WO2013173949A1 - 一种三维虚拟现实场景中物体按层级加卸载的方法和装置 - Google Patents
一种三维虚拟现实场景中物体按层级加卸载的方法和装置 Download PDFInfo
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- WO2013173949A1 WO2013173949A1 PCT/CN2012/001259 CN2012001259W WO2013173949A1 WO 2013173949 A1 WO2013173949 A1 WO 2013173949A1 CN 2012001259 W CN2012001259 W CN 2012001259W WO 2013173949 A1 WO2013173949 A1 WO 2013173949A1
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- virtual reality
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/06—Arrangements for sorting, selecting, merging, or comparing data on individual record carriers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/005—Tree description, e.g. octree, quadtree
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/20—Input arrangements for video game devices
- A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
- A63F13/214—Input arrangements for video game devices characterised by their sensors, purposes or types for locating contacts on a surface, e.g. floor mats or touch pads
- A63F13/2145—Input arrangements for video game devices characterised by their sensors, purposes or types for locating contacts on a surface, e.g. floor mats or touch pads the surface being also a display device, e.g. touch screens
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/40—Processing input control signals of video game devices, e.g. signals generated by the player or derived from the environment
- A63F13/42—Processing input control signals of video game devices, e.g. signals generated by the player or derived from the environment by mapping the input signals into game commands, e.g. mapping the displacement of a stylus on a touch screen to the steering angle of a virtual vehicle
- A63F13/426—Processing input control signals of video game devices, e.g. signals generated by the player or derived from the environment by mapping the input signals into game commands, e.g. mapping the displacement of a stylus on a touch screen to the steering angle of a virtual vehicle involving on-screen location information, e.g. screen coordinates of an area at which the player is aiming with a light gun
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/90—Constructional details or arrangements of video game devices not provided for in groups A63F13/20 or A63F13/25, e.g. housing, wiring, connections or cabinets
- A63F13/98—Accessories, i.e. detachable arrangements optional for the use of the video game device, e.g. grip supports of game controllers
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/50—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by details of game servers
- A63F2300/53—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by details of game servers details of basic data processing
- A63F2300/534—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by details of game servers details of basic data processing for network load management, e.g. bandwidth optimization, latency reduction
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/50—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by details of game servers
- A63F2300/55—Details of game data or player data management
- A63F2300/552—Details of game data or player data management for downloading to client devices, e.g. using OS version, hardware or software profile of the client device
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
- A63F2300/8082—Virtual reality
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/61—Scene description
Definitions
- the present invention relates to the field of three-dimensional virtual reality technology, and in particular, to a method and apparatus for loading and unloading objects in a three-dimensional virtual reality scene.
- Virtual reality technology has virtuality beyond reality. It is a new computer technology developed along with multimedia technology. It uses three-dimensional graphics generation technology, multi-sensor interaction technology and high-resolution display technology to generate a three-dimensional realistic virtual environment. Users need special interactive devices to enter the virtual environment. Virtual reality technology has greatly advanced the development of computer technology. One of its main functions is to generate virtual reality scenes. Virtual reality technology has been applied in various aspects such as industry, architecture design, education and training, culture and entertainment. The development of this technology is changing people's lives.
- the main object of the present invention is to provide a method and apparatus for loading and unloading objects in a three-dimensional virtual reality scene in a hierarchical manner, which realizes the purpose of dynamically loading and unloading objects according to levels in a three-dimensional virtual reality scene.
- a method for loading and unloading objects in a three-dimensional virtual reality scene according to the present invention includes:
- the method further includes:
- the method further includes:
- the tree management structure is generated according to the subordination and combination between all objects in the three-dimensional virtual reality scene.
- the generating the tree management structure according to the subordinate and combination manner of all objects in the three-dimensional virtual reality scene comprises:
- the root node of the tree management structure is located at a first level of the tree management structure, and the first object is an entire three-dimensional virtual reality scene;
- the second object corresponding to each part of the first object belongs to a second level of a tree management structure, and the node corresponding to the second object is a child node of the root node , where N>1, N is an integer;
- the third object corresponding to each part of the second object belongs to the third level of the tree management structure, and the node corresponding to the third object is the corresponding node of the second object.
- the method further includes:
- the behavior of the object selected in the three-dimensional virtual reality scene includes:
- a device for loading and unloading objects in a three-dimensional virtual reality scene comprising:
- a level determining unit configured to determine a level of the object in the tree management structure and a node corresponding to the tree management structure after sensing the behavior of the object in the three-dimensional virtual reality scene;
- a receiving unit configured to receive a command to enter the next layer
- a determining unit configured to determine whether the node corresponds to a next level
- an unloading unit configured to: when the receiving unit determines that the obtained node has a next level after receiving the command to enter the next layer, loading the next three-dimensional virtual reality scene All objects in a hierarchy and unload all objects in the hierarchy where the object is located.
- the method further includes:
- the receiving unit is further configured to receive a command to return to the previous layer
- the determining unit is further configured to determine whether the node corresponds to an upper level
- the loading and unloading unit is further configured to: after the receiving unit receives the returning the upper layer command, when the determining unit determines that the obtained node corresponds to the upper level, loading in the three-dimensional virtual reality scene All objects in the previous hierarchy, and unloading the locations in the hierarchy where the objects are located There are objects.
- the method further includes:
- a tree structure generating unit is configured to generate a tree management structure according to a subordination and a combination manner among all objects in the three-dimensional virtual reality scene.
- the method further includes:
- the message unit is configured to: after the receiving unit receives the command to enter the next layer, when the determining unit determines that the obtained node does not correspond to the next level, sending an execution failure message.
- the message unit is further configured to: after the receiving unit receives the returning the previous layer command, when the determining unit determines that the obtained node does not correspond to the upper level, sending an execution failure message.
- the method and the device for loading and unloading objects in the three-dimensional virtual reality scene of the present invention determine the level of the selected object in the three-dimensional virtual reality scene and the selected object corresponding to the node in the level, and then receive the entry.
- a layer returns or returns to the previous layer command
- all objects in the next level or the previous level are loaded in the 3D virtual reality scene
- all objects in the level of the selected object are unloaded, thereby realizing the dynamic loading user needs to observe.
- the purpose of object level and unloading irrelevant level resources not only reduces the occupation of computer memory, but also improves the fluency of the display of 3D virtual reality scenes.
- FIG. 1 is a schematic diagram of a tree management structure of the present invention
- FIG. 2 is a schematic flow chart of Embodiment 1 of a method for loading and unloading objects in a three-dimensional virtual reality scene according to the present invention
- FIG. 3 is a schematic diagram of loading and unloading of objects in a three-dimensional virtual reality scene according to the present invention.
- Embodiment 4 is a schematic flow chart of Embodiment 2 of a method for loading and unloading objects in a three-dimensional virtual reality scene according to the present invention
- FIG. 5 is a schematic structural diagram of Embodiment 1 of an apparatus for loading and unloading objects in a three-dimensional virtual reality scene according to the present invention
- FIG. 6 is a schematic structural diagram of Embodiment 2 of an apparatus for loading and unloading objects in a three-dimensional virtual reality scene according to the present invention.
- DETAILED DESCRIPTION OF THE INVENTION Objects in a three-dimensional virtual reality scene are divided into an assembly and a single body. The combination is composed of a plurality of monomers, and a tree management structure can be established by defining a subordinate and combination manner of objects in a three-dimensional virtual reality scene. All the nodes in the tree management structure are divided into real nodes and virtual nodes, where the real nodes refer to the leaf nodes of the tree structure, the leaf nodes correspond to the single elements in the three-dimensional virtual reality scene, and the virtual nodes refer to the leaves nodes.
- All the nodes, the virtual nodes correspond to the combination in the three-dimensional virtual reality scene, and the presentation of the combination in the three-dimensional virtual reality scene depends on the combination of all the monomers that make up it, and all the real nodes and virtual nodes are divided according to the hierarchical rules.
- the first level includes the root node 1
- the second level includes the child nodes 1.1, 1.2, and 1.3
- the third level includes the child nodes 1.2.1, 1.2.2, and 1.2. .3
- the fourth level includes sub-nodes 1.2.3.1, 1.2.3.2, and 1.2.3.3.
- the root node 1, the child nodes 1.2 and 1.2.3 are virtual nodes, corresponding to the combination in the three-dimensional virtual reality scene
- the other nodes are real nodes, corresponding to the single elements in the three-dimensional virtual reality scene. Defining the subordination and combination of objects in a three-dimensional virtual reality scene, and establishing a tree management structure of objects in a three-dimensional virtual reality scene.
- the steps of the first embodiment of the method for realizing the loading and unloading of objects in the three-dimensional virtual reality scene of the present invention are as follows:
- the behavior of the object in the three-dimensional virtual reality scene is included in the following three modes: first, controlling the mouse to select an object in the three-dimensional virtual reality scene; second, when the display window is a touch screen The object in the three-dimensional virtual reality scene is selected by using a touch pen or a finger touch. Third, the object in the three-dimensional virtual reality scene is selected by inputting a command from the keyboard.
- the object After sensing the behavior of the object in the three-dimensional virtual reality scene, the object can be corresponding to the pre-generated tree management structure, thereby determining the structure level to which the selected object belongs according to the tree management structure. Click on the object to correspond to the node in the hierarchy.
- the scheme generates a tree management structure according to the subordination and combination between all objects in the three-dimensional virtual reality scene.
- the root node is determined according to the subordination and combination manner among all objects in the three-dimensional virtual reality scene, and all the root nodes are determined.
- the child node, and finally the root node and all the child nodes form a tree management structure, the specific steps are as follows: 1.
- the first object corresponds to the root node of the tree management structure, and the root node is located at the first level of the tree management structure, An object is an entire three-dimensional virtual reality scene; 2. If the first object includes an N part, the second object corresponding to each part of the first object belongs to the second level of the tree management structure, and the corresponding part of each part of the first object The node corresponding to the two objects is a child node of the root node, where N>1, N is an integer; 3.
- the third object corresponding to each part of the second object belongs to the tree management structure
- the third level the node corresponding to the third object is a child node of the node corresponding to the second object, where M>1, M is an integer; and so on, Decomposing said first object into the hierarchy until the actual demand.
- the received command to enter the next layer is input by the user, and the implementation manner of the input command includes, but is not limited to, the following two methods: First, using a keyboard to input a command, which can be used on a keyboard The character corresponds to the command, click on the character to enter the next level of the tree management structure; Second, if the display window is a touch screen, the operation button for entering the next level can be set in the display window, using a finger or a touch Click the button to enter the next level command.
- the level of the selected object and the node corresponding to the selected object are determined by the sensing point selection behavior, and after receiving the command to enter the next level, all the objects in the level of the selected object are unloaded. And loading all the objects in the lower level of the node in the three-dimensional virtual reality scene, realizing the purpose of dynamically loading the object level that the user needs to observe, and unloading the unrelated hierarchical resources, not only reducing the consumption of the computer, but also improving the scene display screen.
- the fluency is performed by the sensing point selection behavior, and after receiving the command to enter the next level, all the objects in the level of the selected object are unloaded.
- the object is a cube
- the node 1 corresponding to the object is a root node in the tree management structure
- the object corresponding to the node 1 includes three parts, respectively Corresponding to the nodes 1.1 and 1.2 in the tree management structure, located in the second level of the tree structure, when entering the next layer, the object corresponding to node 1 can be unloaded, and node 1 is loaded.
- the steps of the second embodiment of the method for implementing the loading and unloading of objects in the three-dimensional virtual reality scene of the present invention are as follows:
- an object in a three-dimensional virtual reality scene displayed on the two-dimensional screen may be selected by using a mouse, and the object corresponds to a node in the tree management structure, as shown in FIG. 1 , for example, corresponding to the selected object.
- the node is 1. 2. 3, then the node is located in the third level of the tree management structure, the node is a virtual node, and the object corresponding to the node 1.2.3 is a combination.
- step 202 After receiving the next layer command, performing step 203 to step 205;
- the structure level corresponding to the selected object that is, all objects corresponding to the three-dimensional virtual reality scene in the third level
- the structure level corresponding to the selected object that is, all objects corresponding to the three-dimensional virtual reality scene in the third level
- step 206 When receiving the return to the previous layer command, performing step 207 to step 209.
- the structure level corresponding to the selected object that is, all objects corresponding to the three-dimensional virtual reality scene in the third level
- the third is unloaded.
- all the objects in the second level are loaded, that is, the objects corresponding to the node 1.1 in the second level and the node 1.2 and the nodes 1. 3, wherein the node 1.1 and the node 1 are loaded
- the object corresponding to the object is a single body, and the object corresponding to the node 1.2 is a combination.
- all the objects in the upper level or the lower level in the tree management structure are dynamically loaded according to the user's needs, and all the objects in the level of the selected object are unloaded, thereby performing the part of the object to be focused.
- the detail display without displaying all the details of the object, not only reduces the consumption of the computer, but also improves the smoothness of the scene display.
- FIG. 5 is a schematic structural diagram of Embodiment 1 of an apparatus for loading and unloading an object in a three-dimensional virtual reality scene according to the present invention.
- the apparatus includes: a hierarchy determining unit 1 1 for sensing behavior of an object in a three-dimensional virtual reality scene.
- FIG. 6 is a schematic structural diagram of Embodiment 2 of an apparatus for loading and unloading objects in a three-dimensional virtual reality scene according to the present invention.
- the apparatus includes: a tree structure generating unit 21, configured to perform dependencies between all objects in a three-dimensional virtual reality scene.
- the level determining unit 22 configured to sense the behavior of the object in the three-dimensional virtual reality scene after determining the level of the selected object in the tree management structure and the selected object Corresponding to the node in the tree management structure;
- the receiving unit 23 is configured to receive the command to enter the next layer;
- the receiving unit 23 is further configured to receive a command to return to the previous layer;
- the determining unit 24 is configured to determine the object to be selected Whether the corresponding node corresponds to the next level;
- the determining unit 24 is further configured to determine whether the node corresponding to the selected object has a higher level;
- the loading and unloading unit 25 is configured to: when the receiving unit receives the command to enter the next layer, when the determining unit determines that the node corresponding to the selected object corresponds to the next level, loading the next level in the three-dimensional virtual reality scene All the objects in the hierarchy, and unloading all the objects in the hierarchy of the selected object; the loading and unloading unit 25 is further configured to: after the receiving
- the execution failure message is sent; and the message unit 26 is further configured to: after receiving the return command from the receiving unit, When the judgment unit determines that the node corresponding to the selected object corresponds to the previous level, the execution failure message is sent.
- the device for loading and unloading objects in the above-mentioned three-dimensional virtual reality scene may determine, by the level determining unit, the structure level at which the selected object is located and the node corresponding to the selected object in the structure level, and the receiving unit receives the next entry. After the layer command or the command returns to the previous layer, when the judgment unit determines that there is a next level or a higher level, the loading and unloading unit is used to load all objects in the next level or the upper level, and the unloading is selected. All objects in the hierarchy of the object, so that the part of the object is displayed in detail, without displaying all the details of the object, not only reduces the large amount of computer resources, but also makes the picture display process smoother.
- the terms “including”, “comprising” or “comprising” or “comprising” or “comprising” are intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that includes a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device.
- An element defined by the phrase “comprising a " does not exclude the presence of additional elements in the process, method, item, or device that comprises the element.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/403,660 US20150138211A1 (en) | 2012-05-25 | 2012-09-12 | Method and Device for Loading and Unloading Object Hierarchically in Three-Dimensional Virtual Reality Scene |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201210167247.3A CN102722912B (zh) | 2012-05-25 | 2012-05-25 | 一种三维虚拟现实场景中物体按层级加卸载的方法和装置 |
CN201210167247.3 | 2012-05-25 |
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WO2013173949A1 true WO2013173949A1 (zh) | 2013-11-28 |
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PCT/CN2012/001259 WO2013173949A1 (zh) | 2012-05-25 | 2012-09-12 | 一种三维虚拟现实场景中物体按层级加卸载的方法和装置 |
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US (1) | US20150138211A1 (zh) |
CN (1) | CN102722912B (zh) |
WO (1) | WO2013173949A1 (zh) |
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CN109389686A (zh) * | 2017-08-14 | 2019-02-26 | 广东畅响源教育科技有限公司 | 基于大数据与人工智能实现vr场景与物体的加载方法 |
CN113538184A (zh) * | 2021-06-30 | 2021-10-22 | 北京航空航天大学 | 一种航空应急救援虚拟场景的分级构建和层次化训练方法 |
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US11037253B2 (en) * | 2016-04-04 | 2021-06-15 | Hexagon Technology Center Gmbh | Apparatus and method of managing 2D documents for large-scale capital projects |
US10319151B2 (en) | 2017-07-07 | 2019-06-11 | Motorola Solutions, Inc. | Device and method for hierarchical object recognition |
US10796157B2 (en) * | 2018-03-13 | 2020-10-06 | Mediatek Inc. | Hierarchical object detection and selection |
CN109343842B (zh) | 2018-10-09 | 2020-11-06 | 上海莉莉丝科技股份有限公司 | 在编辑器中显示物体的方法、系统、设备和介质 |
CN111062565B (zh) * | 2019-11-11 | 2023-05-23 | 中国人民解放军第五七一九工厂 | 一种制造业企业的三维魔方式组织结构管理系统 |
CN112116718B (zh) * | 2020-09-27 | 2022-04-29 | 北京开云互动科技有限公司 | 一种基于三维虚拟仿真技术的组件交互方法 |
CN113101667B (zh) * | 2021-05-13 | 2023-02-28 | 腾讯科技(深圳)有限公司 | 虚拟对象的控制方法、装置、设备及计算机可读存储介质 |
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2012
- 2012-05-25 CN CN201210167247.3A patent/CN102722912B/zh active Active
- 2012-09-12 US US14/403,660 patent/US20150138211A1/en not_active Abandoned
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CN109389686A (zh) * | 2017-08-14 | 2019-02-26 | 广东畅响源教育科技有限公司 | 基于大数据与人工智能实现vr场景与物体的加载方法 |
CN113538184A (zh) * | 2021-06-30 | 2021-10-22 | 北京航空航天大学 | 一种航空应急救援虚拟场景的分级构建和层次化训练方法 |
CN113538184B (zh) * | 2021-06-30 | 2023-07-07 | 北京航空航天大学 | 一种航空应急救援虚拟场景的分级构建和层次化训练方法 |
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US20150138211A1 (en) | 2015-05-21 |
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