CN102609971A - Quick rendering system using embedded GPU (Graphics Processing Unit) for realizing 3D-GIS (Three Dimensional-Geographic Information System) - Google Patents
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Abstract
The invention provides a quick rendering system based on an embedded GPU (Graphics Processing Unit) for realizing 3D-GIS (Three Dimensional-Geographic Information System), aiming at the shortage problem of computing resources existing in a large number of 3D operation conducted on a common embedded platform. The usage of embedded GPU meets the computing resource requirements of an embedded platform including low power consumption, complex calculation and low bandwidth and realizes the quick rendering and display of the 3D-GIS on the embedded platform. The system comprises a server, a GIS database, and a client terminal. The real-time interaction of the client terminal and the server can be realized through a network, and finally the function that 3D maps are displayed on an embedded terminal in real time can be realized through the strong parallel computing ability of the embedded GPU and a 3D rendering algorithm.
Description
One, technical field
The invention belongs to field of embedded technology, be specifically related to adopt the embedded gpu terminal to realize the quick rendering system of 3D-GIS map.
Two, background technology
At present, embedded graphic all is the application of X-Y scheme, and modal application example has trivial games such as Tetris, gluttonous snake.In addition; Also support shooting to preserve, send and receive operation on some embedded device; These all are based on the principle of the encoding and decoding and the graphic presentation of picture; Though it is complicated more that these are used compared with gluttonous this type of snake application requirements, will find that as long as anatomize these all graphical application still are confined on the two dimensional surface.
Along with the development of integrated circuit technology, some single chip design may have begun to have possessed the ability of similar processing 3D graphics calculations.The hardware-accelerated PC and the workstation of no longer being confined to of 3D figure can be realized on embedded system equally.In 3D figure field, for PC, the 3D graphic hardware quickens this technology and has been tending towards ripe.But for the consumer electronics industry, how to make up a low cost, low-power consumption, the embedded 3D graph processing chips of high-quality display still is a new challenge.
The comparison single goal that has that the embedded hardware platform generally all produces because of some special needs is developed, characteristics such as it has, and cost is low, stable performance, hardware resource are few, low in energy consumption.Also, on such platform, carry out three-dimension developing and must bring cost to rise, and the three-dimensional computations amount greatly also can cause system resource to be had too many difficulties to cope with just because of more such reasons.Cause three-dimensional graphics on the embedded platform use and computing machine on the reason that differs greatly of application; Be not the necessity of not carrying out three-dimensional applications on the embedded platform; But the embedded system platform hardware resource is limited, on a platform that does not possess graphic hardware, possibly accomplish the modeling and the demonstration of the three-dimensional model of more complicated hardly.Mobile device mobile phone the most generally to use is example, and traditional recreation and video all are to carry out arithmetical operation through CPU, and the resource that this has consumed CPU greatly causes the development of built-in multimedia to meet with bottleneck; And embedded technology is paid attention to Low-power Technology, and battery life often badly influences the performance of embedded device, and a large amount of three-dimensional model computings and bandwidth consumption will cause the shortening of battery life.
Continuous development along with SOC technology makes that the integrated level of chip is increasingly high, and the programmable graphics hardware technology is also in continuous progress, and volume and price have all had and decline to a great extent.Because the oriented integrated level of consumer EMBEDDED AVIONICS is higher, the direction Development Trend that multimedia function is abundant more, data-handling capacity is stronger.At present, some built-in multimedia chips are introduced to the market, not only on functions such as acoustic processing, picture preservation and demonstration, very big breakthrough and development have been arranged, and on the function that 3D quickens, develop rapidly at present.
The programmable graphics hardware technology is constantly progressive, makes and utilizes the hardware real-time drawing 3 D graphics to become possibility.This has greatly promoted the exploitation of built-in three-dimension Flame Image Process.
Three, summary of the invention
The present invention proposes a kind of 3D-GIS electronic map system to the built-in terminal exploitation, and this system can realize the real-time, interactive of user terminal and server, and on user terminal, utilizes embedded gpu to carry out real-time 3 D romance.Total system comprises server, client and three parts of GIS database.
Server is used for that analogue formation, control data stream, data obtain, data transmit.The GIS database can further be subdivided into two types: 2D-GIS database and 3D-GIS database.
The data in server transmission mainly is meant according to the request of client terminal obtains data and sends client terminal to through network from the GIS database; Client terminal is to use the embedded device of embedded gpu, and embedded gpu mainly is responsible for the GIS data that server sends are played up and are presented on the screen.
The system framework of client terminal is made up of hardware layer, Drive Layer, system platform and application layer.
The system framework hardware layer of said client is made up of the hardware of built-in terminal and 3D-GIS function association, mainly comprises primary processor CPU, embedded gpu, input equipment (keyboard and mouse), display screen, internal memory or the like.
The system framework Drive Layer of said client representes that this layer is direct and the mutual software-driven layer of hardware, is made up of serial port drive, SDL, EGL and OpenGL ES.Wherein, serial port drive directly provides the parsing and the reception of gps data.The SDL function provides the support to keyboard, mouse and touch-screen, can man-machine interaction be provided for the navigation of Embedded GIS, and the 3D map is rotated and convergent-divergent.EGL provides the support to local windows system, and the support of EGL has been arranged, and can on embedded device, realize no window management system, has saved very most embedded resource.OpenGL ES is that the 3D mapping provides API with large-scale scene rendering, and the api function interface in conjunction with PowerVR SGX carries out playing up fast of 3D-GIS map.
The system platform of said client generally adopts built-in Linux, and built-in Linux is to be the embedded operating system on basis with Linux, and it is widely used in consumer electronics products such as mobile phone, PDA(Personal Digital Assistant), media player.
The application layer of said client is uppermost one deck of FTP client FTP, realizes the drafting of 3D scene and playing up of extensive map through calling system API, form Administration API (EGL), PowerVR Shell API, OpenGL ES API.
The present invention proposes a kind of system of drawing and playing up to the large scale scene of embedded gpu realization 3D, its main flow process comprises links such as modelling, data manipulation, CPU and embedded gpu initialization, scene rendering, the demonstration of 3D scene and resource recovery.
(1) modelling: on server, move 3 d modeling software, for example software such as 3DMax Maya is accomplished three-dimensional map modeling and scene setting, obtain with the data file of playing up, and with these 3D deposit data in the 3D-GIS database.
(2) data manipulation: server is confirmed needed 2D and 3D map datum according to the client terminal sent request, and from the GIS database, obtains these data, sends these data to client terminal at last.
Described 2D and 3D map datum are to confirm according to the request that client terminal sends over.The user is when carrying out the map selection; Select needed map segment through mouse or touch-screen; This part is the part that user expectation is shown in display screen central authorities, if the 3D data of this part do not exist in client, client terminal thinks that server sends the acquisition request data so.Server is according to the needed position of user, obtains the 3D data of this part from the 3D-GIS database, and obtains the 2D data of required map location neighboring area from the 2D-GIS database, and these 2D, 3D data are sent to client terminal together shows.
(3) client terminal CPU and GPU initialization: CPU opens up memory headroom, loads map datum in internal memory, and the SDL initialization provides the support of touch-screen, mouse, keyboard response; The serial port drive program receives and resolves the GPS protocol data; The embedded gpu initialization is opened up enough video memorys and is deposited polygon data.
(4) static frames that scene rendering: CPU plays up needs is played up task and is resolved into some subtasks (is unit with the piece) of playing up; Send to embedded gpu through bus, embedded gpu parallel rendering node is to playing up the subtask parallel processing; Work is played up in completion, the static frames after obtaining playing up.
(5) the 3D scene shows: the data that embedded gpu calculates are sent to screen display mapping memory headroom and on touch display screen, show.
(6) resource reclaims: after the EOP (end of program), CPU discharges the memory headroom of opening up, and GPU discharges the video memory space of opening up, and carries out resource and reclaims.
Four, description of drawings
Fig. 1. system forms structure
Fig. 2. device end implementation framework figure
The hardware structure of Fig. 3 .PowerVR SGX
Fig. 4 .OpenGL ES 2.0 pipeline flow processs able to programme
Fig. 5. typical EGL system layout figure
Fig. 6. the program flow diagram of client
Five, embodiment
Come the further volume of the present invention is specified below in conjunction with accompanying drawing and concrete enforcement use-case.It is pointed out that the present invention can realize with many different embodiment, and be not limited to embodiment as herein described.
The present invention proposes a kind of 3D-GIS electronic map system to the built-in terminal exploitation, and this system can realize the real-time, interactive of user terminal and server, and on user terminal, utilizes embedded gpu to carry out real-time 3 D romance.As shown in Figure 1, total system comprises service end and two parts of client.
Service end is made up of server and GIS database.Server is used for that analogue formation, control data stream, data obtain, data transmit.The GIS database is made up of two parts: 2D-GIS database and 3D-GIS database.Wherein the 3D-GIS database is generated through modelling through using the 3D prototype software by server.
Data in server transmits and is meant that mainly server obtains data and sends client terminal to through network according to the request of client terminal from the GIS database, and the existing 2D data of the data that server obtained and transmitted also have the 3D data.
The platform processor of client terminal comprises chief components such as embedded type CPU and embedded gpu; Wherein, CPU mainly is responsible for the management of hardware, the control and the network interaction of data stream, and embedded gpu mainly is responsible for the GIS data that server sends are played up and are presented on the screen.
Be that example describes in detail based on the AM3517 platform below, the microprocessor of this platform (MPU) has adopted ARMCortex-A8, has also used embedded gpu to carry out graphics calculations and demonstration in addition.This platform has very strong its processing core and three-dimensional picture is quickened function.Its embedded gpu graphics engine is PowerVR SGX, and this graphics engine processing speed reaches per second 10Mpolygon, and supports OpenGL ES 2.0, can quicken to realize the 3D graphic user interface.
The client terminal of the quick rendering system of 3D-GIS can be divided into from structure: hardware configuration and software design.Hardware configuration mainly contains ARM host processor chip, PowerVR embedded gpu, input equipment (like keyboard and mouse etc.), output device (LCD display) and storer.The software aspect relates to built-in Linux operating system, SDL, OpenGL ES, EGL or the like.Fig. 2 is the implementation framework figure of customer terminal equipment total system.
Client terminal 3D-GIS electronic chart framework is made up of hardware layer, Drive Layer, system platform and application layer:
(1) hardware layer: the hardware that mainly comprises built-in terminal and 3D-GIS function association.
A) primary processor ARM Cortex-A8;
B) keyboard and mouse;
C) embedded graphic display card PowerVR SGX;
D) LCD touch display screen;
E) internal memory.
(2) Drive Layer: this layer is direct and the mutual software-driven layer of hardware; Serial port drive directly provides the parsing and the reception of gps data; Gps data is used for carrying out confirming of current geographic position when the user terminal start is perhaps reset, and obtains the current location map datum from service end and give tacit consent to demonstration.The SDL function provides the support to keyboard, mouse and touch-screen, letting the user select needed geographic position, for the navigation of Embedded GIS provides man-machine interaction, the 3D map is rotated and convergent-divergent.EGL provides the support to local windows system, and the support of EGL has been arranged, and can on embedded device, realize no window management system, has saved very most embedded resource.OpenGL ES is that the 3D mapping provides API with large-scale scene rendering, and the api function interface in conjunction with PowerVR SGX carries out playing up of 3D-GIS map.
(3) system platform: system platform has adopted built-in Linux, and built-in Linux is to be the embedded operating system on basis with Linux, and it is widely used in mobile phone, PDA(Personal Digital Assistant), media player, consumer electronics product.
(4) application layer: this is uppermost one deck, through the API of system, form Administration API (EGL), PowerVR Shell API, OpenGL ES API the drafting of 3D scene and playing up of extensive map is provided.
Wherein PowerVR SGX has three significant advantages; It at first is TBDR (Tile-Based Deferred Rendering) electricity-saving architecture; Can on sheet, handle hidden surface in the internal memory and eliminate (Hidden Surface Removal) and mix (Blending), reach power saving effect through reducing the internal storage data bandwidth; To be that programmable universal is scalable say that (Universal Scalable Shader Engine, USSE), this module is the computing center of chip to the look engine for next.USSE can dispose the work (comprising summit processing and processes pixel) of each tinter automatically and give a plurality of performance elements among the USSE, lets the hardware utilization rate reach optimum condition; Be power conservation techniques at last, except TBDR, also frequency of utilization lock prosecutor formula is guaranteed minimum standby power consumption amount simultaneously.
The hardware structure of PowerVR SGX is as shown in Figure 3, mainly comprises host interface, SMI, geometric figure manager, image synthesis processor (ISP), coarseness scheduler (CGS), general scalable painted engine (USSE), piece coprocessor and multi-level buffer etc.
The 3D graph processing chips is the system of a more complicated, often is made up of with subsystem sophisticated functions much special.Be the workflow that triangle is played up at PowerVR SGX pipeline below:
Step 1: the element figure data are submitted to general scalable painted engine (USSE) after through coarseness scheduler CGS resume module, and processing procedure is to produce output through vertex shader program.
Step 2: the data of output are sent to the piece coloring units.It is responsible for cutting, surface rejecting and the piecemeal of scene and plays up.Afterwards, the piece coloring units spreads the packed data of its generation in internal memory, and Image Synthesis Processor (ISP) is played up the relevant triangle in the piece of separation.
Step 3: through these a series of setting operations, triangle number is according to the processing of really having carried out the degree of depth/template test.
Step 4: the data of these piecemeals can be sent to ISP and enter into USSE then and carry out fragment shading afterwards.
The data processed result of step 5:UUSE will be write in the buffer zone on the sheet after the pixel coprocessor processing operations.
Step 6: output shows.
Described the render process of triangle in PowerVR SGX above, carried out with regard to it below that 3D rendering shows and the large-scale data treatment scheme is described in detail.
(1) makes up contextual data.The first step is mainly by the CPU executable operations; The CPU operation is by the OpenGL written program; The output of program all is based on basic triangle operation; Output is stored in the buffer zone, and for PVRSG (PowerVR Second Generation technology), this buffer zone must be greatly to holding all triangle number certificates.
(2) divide block operations.This is first operation that PVRSG carries out, is different from traditional playing up immediately to calculate each polygon in the scene buffer zone in the technology, and no matter whether visible.PVRSG just plays up those finally visible pixels on screen.The TBR of PowerVR (Tile-Based Rendering) is behind geometric operation; The pixel of screen a lot of rectangular tiles have been divided into; Elder generation is through the depth test of each fritter; Whether visible whether the pixel in the test fritter decision fritter should be played up, and needs coloured part to give rendering pipeline more afterwards and go to handle, and exports at last.So, sightless pixel is picked and need not be played up in advance, and very Da Cheng has reduced the pressure of rendering pipeline in the last bandwidth of having saved.
(3) hidden face algorithm.
The hidden face algorithm is the very interesting part of PVRSG, and the hidden face algorithm acts on each fritter, every about 32x16 pixel.Workflow is following: first pointer that (a) obtains to point to specific concrete piece from block buffer; (b) use the triangle number certificate that obtains to calculate depth value (Z-value) for each pixel in this piece; (c) piece that has depth value that calculates is stored on the sheet in the chip, calculates next piece then, and so circulation is up to end.
(4) play up.Play up and need to use the front acquired information: a buffer zone that comprises all pixels will coloured, point to the pointer that leaves the triangular form data in the scene buffer zone in, these data have determined color and some other attribute on summit.
(5) be sent to the frame buffering.Final step transfers to all pieces that will export demonstration in the display memory in the buffer zone obviously exactly, finish just can be complete displayed scene.The certain operations that can add reverse sawtooth here.
The software section of system comprises OpenGL ES, SDL, EGL three parts, carries out detailed description to OpenGL ES below.
What Fig. 4 showed is OpenGL ES 2.0 pipeline flow processs able to programme.With respect to OpenGL ES 1.X fixed pipelines, Vertex Shader among the OpenGL ES 2.0 and Fragment Shader are two programmable functions modules, therefore, can realize the quick demonstration of real 3D through this function.
OpenGL ES is the state machine of a graphics rendering pipeline in essence, mainly pel is carried out summit and fragment shading processing, adds some other additional playing up, and gives FrameBuffer (frame buffer) with result at last.EGL then be used to monitor these states and safeguard Framebuffer with other play up the exterior layer of Surface.Fig. 5 is a typical EGL system layout figure.
The state of OpenGL ES graphics pipeline is stored among the Context of EGL management.Frame Buffers draws Surfaces with other and creates, manages and destroy through EGLAPI.EGL also controls simultaneously and provides equipment is shown and the visit of possible equipment render configurations.
OpenGL itself does not support some interactivity operations; So we have introduced SDL and have realized man-machine interaction, realize control, conversion visual angle, rotation, convergent-divergent, roaming and other amusement functions (watching video or the like) as clicking sign to the 3D scene through introducing keyboard, mouse event and touch-screen.
The hardware structure and the software platform of client have more than been described; System based on service end and client proposed by the invention, its main flow process comprise parts such as service end modelling, data manipulation, client CPU and embedded gpu initialization, scene rendering, the demonstration of 3D scene and resource recovery.Described here CPU and embedded gpu refer to ARMCortex-A8 and PowerVR SGX respectively.
(1) modelling: at server end operation 3 d modeling software, for example software such as 3DMax Maya is accomplished three-dimensional map modeling and scene setting, obtain with the data file of playing up, and with these 3D deposit data in the 3D-GIS database.
(2) data manipulation: server is confirmed needed 2D and 3D map datum according to the client terminal sent request, and from the GIS database, obtains these data, sends these data to client terminal at last.
Required 2D and 3D map datum are to confirm according to the request that client terminal sends over.The user is when carrying out the map selection; Select needed map segment through mouse or touch-screen; This part is the part that user expectation is shown in display screen central authorities, if the 3D data of this part do not exist in client, client terminal thinks that server sends the acquisition request data so.Server is according to the needed position of user, obtains the 3D data of this part from the 3D-GIS database, and obtains the 2D data of required map location neighboring area from the 2D-GIS database, and these 2D, 3D data are sent to client terminal together.Client is accepted these data and is shown.
(3) client terminal CPU and GPU initialization: CPU opens up memory headroom, loads map datum in internal memory, and the SDL initialization provides the support of touch-screen, mouse, keyboard response; The serial port drive program receives and resolves the GPS protocol data; The embedded gpu initialization is opened up enough video memorys and is deposited the triangle number certificate.
(4) static frames that scene rendering: CPU plays up needs is played up task and is resolved into some subtasks (is unit with the piece) of playing up; Send to embedded gpu through bus, embedded gpu parallel rendering node is to playing up the subtask parallel processing; Work is played up in completion, the static frames after obtaining playing up.Wherein relate to transparent and the translucent graphic processing.
(5) the 3D scene shows: the data that embedded gpu calculates are sent to screen display mapping memory headroom and on touch display screen, show.
(6) resource reclaims: after the EOP (end of program), CPU discharges the memory headroom of opening up, and GPU discharges the video memory space of opening up, and carries out resource and reclaims.
In order to make full use of the power of embedded gpu PowerVR, need to combine its ardware feature to carry out program design.And carry out following five steps in order:
(1) InitApplication: this function is to be called before any api function initialization, is used for the loading application programs desired data, object space for example, and vertex data array etc., and need not call other any api functions.Here we realize opening up memory headroom, to be used for loading map datum;
(2) InitView: this function calls after the InitApplication function is initialised, and is used for doing remaining initial work, calls completion by function.Here mainly be the initialization serial ports, being used for the transmit GPS locating information, and the operations such as initialization of SDL and EGL.
(3) RenderScene: this function circulation is called and draws all geometric objects.Return the entering of false value and withdraw from sequence.Map datum that here loads and large scale scene data are sent to carries out computing in the embedded gpu, adopted the TBDR technology, calculates last output data through summit and fragment shading unit, and final data is kept in the region of memory.
(4) ReleaseView: this function calls before api function is released, and is used to discharge the system resource that api function calls, for example the release of summit and fragment buffer zone.
(5) QuitApplication: this function is called at last, and after all api functions were released, it was used for discharging the internal memory that remaining user distributes.
The program design figure of whole client is as shown in Figure 6, comprising the terminal to user's response and mutual with service end.
In the present invention, we have introduced embedded gpu: PowerVR., it is technical bottleneck such as we have solved that the power consumption in the embedded device is excessive, insufficient bandwidth, computing are slow, has led the new trend of mobile device and handheld device multinucleation.Can realize the Rapid Realization of 3D large scale scene of many details of high-resolution.
What should explain at last is that above instance just is directed against a realization routine of being suggested plans, the just technical scheme in order to explain that the present invention rather than restriction the present invention describe; Therefore although the above-mentioned embodiment of this description, which references carries out detailed explanation to the present invention, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. embedded gpu is realized the quick rendering system of 3D-GIS; It is characterized in that: system comprises server; The GIS database, client terminal, server and client terminal carry out data interaction through network; Map datum is kept in the GIS database, carries out the demonstration of 3D map behind the client terminal acquisition map datum.
2. embedded gpu according to claim 1 is realized the quick rendering system of 3D-GIS; It is characterized in that: the function of said server; Comprise that mainly analogue formation, control data stream, data are obtained, data transmit four parts, wherein analogue formation is represented that server has three-dimensional map is carried out modeling and the function of scene setting with generation 3D data; Control data stream expression server has control data receives and sends and control is obtained from the GIS database data volume and the function of the data volume of sending to the user; Data are obtained the expression server and need carried out data access and will obtain data sending the user to from the GIS database; Data transmit the expression server need send data to user.
3. embedded gpu according to claim 1 is realized the quick rendering system of 3D-GIS, it is characterized in that: said GIS database comprises by two parts and forming that 2D-GIS database and 3D-GIS database are deposited 2D and 3D map datum respectively.
4. embedded gpu according to claim 1 is realized the quick rendering system of 3D-GIS; It is characterized in that: said client terminal is a built-in terminal; Comprise two types of processing units compositions: embedded type CPU and embedded gpu; Embedded type CPU is responsible for general control and calculating, and embedded gpu is responsible for playing up fast to realize the quick demonstration of picture of 3D scene.
5. embedded gpu according to claim 1 is realized the quick rendering system of 3D-GIS; It is characterized in that: said client terminal can be portable terminal; Also can be fixed terminal, the network of client terminal and server interaction can be cable network and wireless network.
6. mutual according to said server of claim 1 and client terminal; It is characterized in that: client terminal carries out request of data to server; Request comprises needs and shows 3D map corresponding geographical location information; Server obtains data according to this positional information to the GIS database, the data of obtaining by client 3D map datum and the 2D map datum of this neighboring area, geographic position in request geographic position, and send these data to client terminal in the lump.
7. mutual according to said server of claim 1 and client terminal, it is characterized in that: client terminal will obtain map datum and show, comprising 2D and 3D data; Being presented on the client terminal display screen is the 3D map, and the 2D map datum around these maps is deposited in client terminal this locality, when the user moves displayed map; These 2D maps then can be shown; Do not need to carry out alternately with server again, if but user-selected geographic position part does not have the 3D data, and there are the 2D data in this locality; Then carrying out the 2D map shows; And carry out request of data to server, there are not the 2D data in client terminal this locality else if, then directly carries out request of data to server.
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103035164A (en) * | 2012-12-24 | 2013-04-10 | 广东威创视讯科技股份有限公司 | Rendering method and system of geographic information system |
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| CN102881046B (en) * | 2012-09-07 | 2014-10-15 | 山东神戎电子股份有限公司 | Method for generating three-dimensional electronic map |
| CN102881046A (en) * | 2012-09-07 | 2013-01-16 | 山东神戎电子股份有限公司 | Method for generating three-dimensional electronic map |
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| CN103035164B (en) * | 2012-12-24 | 2015-03-25 | 广东威创视讯科技股份有限公司 | Rendering method and system of geographic information system |
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| CN105469382B (en) * | 2014-12-04 | 2019-10-25 | 苏州蜗牛数字科技股份有限公司 | A kind of 3D map-indication method and display system |
| CN104598646A (en) * | 2015-02-16 | 2015-05-06 | 深圳岂凡网络有限公司 | Realizing method for web page 3D engine and web page 3D engine |
| CN105187853A (en) * | 2015-09-09 | 2015-12-23 | 上海赛为信息技术有限公司 | OPENGL ES-based ARM terminal system and video display method |
| CN106327563A (en) * | 2016-08-24 | 2017-01-11 | 武汉斗鱼网络科技有限公司 | Directx texture resource interoperation system and method |
| CN106327563B (en) * | 2016-08-24 | 2019-04-05 | 武汉斗鱼网络科技有限公司 | A kind of Directx texture resource inter-operation system and method |
| CN108984169A (en) * | 2017-06-01 | 2018-12-11 | 刘开元 | A kind of cross-platform Multielement integration development system |
| CN108984169B (en) * | 2017-06-01 | 2022-05-03 | 刘开元 | Cross-platform multi-element integrated development system |
| CN109947118A (en) * | 2019-04-19 | 2019-06-28 | 南京大学 | A kind of cost map Rapid Updating accelerated using GPU |
| CN110083446A (en) * | 2019-04-23 | 2019-08-02 | 北京吉威时代软件股份有限公司 | A kind of GPU parallel with remote sensing image real-time processing method and system under zero I/O mode |
| CN111445569A (en) * | 2019-11-28 | 2020-07-24 | 成都理工大学 | Sedimentary geological evolution dynamic simulation method |
| CN111598767B (en) * | 2020-05-18 | 2024-01-12 | 北京茵沃汽车科技有限公司 | Method, system and medium for accelerating 3D graphics based on multi-core processor |
| CN112163986A (en) * | 2020-09-28 | 2021-01-01 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Distributed processing method for underground logging and mining three-dimensional data of metal mine |
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