CN105487848B - A kind of the display method for refreshing and system of 3D application - Google Patents
A kind of the display method for refreshing and system of 3D application Download PDFInfo
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Abstract
The invention discloses the display method for refreshing and system of a kind of 3D application, the last rendering result shown by saving 3D application, and generate corresponding source texture according to the last rendering result；The current screen for calculating the 3D application shows the changed rectangular area of screen compared with last screen is shown；The bias size of viewport is set according to the rectangular area, and recalculate Projection matrix, draws to the rectangular area, and drawing result is generated corresponding update texture；By the update texture and source texture blend, it is plotted to the viewport, and updates the display screen and shows, is refreshed with completing the display of 3D application；By being refreshed just for the region that screen display interface is changed, big degree reduces the occupancy of GPU, significantly improves the rendering efficiency of 3D scene.
Description
Technical field
The present invention relates to technical field of mobile terminals more particularly to a kind of 3D the display method for refreshing applied and it is
System.
Background technique
With the continuous development of mobile terminal technology, the function of the mobile terminals such as mobile phone is more and more.Existing smart phone
Function very abundant, the visual experience effect based on 3D also become more and more popular, and more and more 3D are applied on embedded device
It behaves.It is the son of OpenGL 3-D graphic API based on OpenGL ES(OpenGL for Embedded Systems
Collection, designed for embedded devices such as mobile phone, PDA and game hosts) application be typically all entire screen ceaselessly brushing
Newly, the resource that a large amount of CPU and GPU will be occupied in this way on embedded device causes embedded device power consumption to increase, system
Reduced performance, and directly affect the cruising ability of embedded device battery.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The purpose of the present invention is to provide the display method for refreshing and system of a kind of 3D application, it is intended to solve existing insertion
For formula equipment when showing 3D application display, the resource that 3D application refreshing occupies a large amount of CPU and GPU leads to embedded device power consumption
Increase, the problem that system performance reduces and power consumption is big.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of display method for refreshing of 3D application, wherein the following steps are included:
A, the last rendering result that 3D application is shown is saved, and is generated and is corresponded to according to the last rendering result
Source texture；
B, the current screen for calculating the 3D application shows the changed rectangle of screen compared with last screen is shown
Region；
C, the bias size of viewport is set according to the rectangular area, and recalculate Projection matrix, to the rectangular area
It is drawn, and drawing result is generated into corresponding update texture；
D, by the update texture and source texture blend, it is plotted to the viewport, and updates the display screen and shows, with
The display for completing 3D application refreshes.
The display method for refreshing of the 3D application, wherein the step A is specifically included:
A1, creation one show 3D application as terminal display size, for saving the terminal display
The PBO of last rendering result；
A2, the last rendering result that is shown of 3D application is saved into the PBO, and the PBO saved upper
One time rendering result generates corresponding source texture.
The display method for refreshing of the 3D application, wherein the step B is specifically included:
B1, the 3D current screen applied is shown show and compare with last screen, 3D application is shown
2D coordinate of the area maps that 3d space changes to screen；
B2, the corresponding rectangular area of 2D Coordinate generation according to the screen.
The display method for refreshing of the 3D application, wherein the step C is specifically included:
C1, the bias size of viewport is adjusted into the rectangular area；
C2, the position for determining viewpoint calculate projection matrix using the offset of nearly section and size, true according to projection matrix
Surely the range projected is got after perspective division between standardization coordinate [- 1,1]；
C3, the projection matrix is contracted in the rectangular area for needing to update, it is corresponding aobvious draws the rectangular area
Show interface；
C4, the corresponding drawing result in rectangular area that viewport is drawn is obtained, and generates corresponding update texture.
The display method for refreshing of the 3D application, wherein the step D is specifically included:
D1, by the update texture and source texture blend, and be plotted to the viewport；
D2, update shows that the screen is shown on the basis of the display of upper primary screen, to complete the display brush of 3D application
Newly, and by the current screen after refreshing show that result is sent to PBO and saves.
A kind of display updating system of 3D application, wherein include:
Source texture generation module, the last rendering result shown for saving 3D application, and according to described upper one
Secondary rendering result generates corresponding source texture；
Rectangular area computing module, the current screen for calculating the 3D application are shown compared with last screen is shown
The changed rectangular area of screen；
Texture generation module is updated, for the bias size of viewport to be arranged according to the rectangular area, is recalculated Projection
Matrix draws the rectangular area, and drawing result is generated corresponding update texture；
Texture blend display module, for being plotted to the viewport, and update for the update texture and source texture blend
It shows that the screen is shown, is refreshed with completing the display of 3D application.
The display updating system of the described 3D application, wherein the source texture generation module includes:
PBO creating unit, for creation one as terminal display size, for saving the terminal display
Show the PBO of the last rendering result of 3D application；
Source texture generation unit, for saving 3D using the last rendering result shown into the PBO, and will
The last rendering result that the PBO is saved generates corresponding source texture.
The display updating system of the described 3D application, wherein the rectangular area computing module includes:
Map unit, the current screen for applying the 3D, which is shown, to be shown with last screen and compares, by 3D
2D coordinate of the area maps changed using the 3d space of display to screen；
Rectangular area generation unit, for the corresponding rectangular area of 2D Coordinate generation according to the screen.
The display updating system of the described 3D application, wherein the update texture generation module includes:
Viewport offset units, for adjusting the bias size of viewport into the rectangular area；
Projection matrix computing unit calculates projection using the offset of nearly section and size for determining the position of viewpoint
Matrix determines the range of projection according to projection matrix, is got between standardization coordinate [- 1,1] after perspective division；
Rectangular area drawing unit draws institute for the projection matrix to be contracted in the rectangular area for needing to update
State the corresponding display interface in rectangular area；
Texture generation unit is updated, for obtaining the corresponding drawing result in rectangular area of viewport drafting, and generates correspondence
Update texture.
The display updating system of the described 3D application, wherein the texture blend display module includes:
Texture blend unit is used for the update texture and source texture blend, and is plotted to the viewport；
Screen shows updating unit, shows that the screen is shown for updating on the basis of the display of upper primary screen, with
The display for completing 3D application refreshes, and the current screen after refreshing is shown that result is sent to PBO and saves.
The display method for refreshing and system of a kind of 3D application provided by the present invention, are based particularly on the 3D of OpenGL ES
Using the Local hydrodynamic unit method of display, existing embedded device is efficiently solved when showing 3D application display, 3D application
The resource for refreshing a large amount of CPU and GPU of occupancy, which causes embedded device power consumption to increase, system performance reduces and power consumption is big asks
Topic, the last rendering result shown by saving 3D application, and it is corresponding according to the last rendering result generation
Source texture；The current screen for calculating the 3D application shows the changed rectangle region of screen compared with last screen is shown
Domain；The bias size of viewport is set according to the rectangular area, and recalculate Projection matrix, draws to the rectangular area
System, and drawing result is generated into corresponding update texture；By the update texture and source texture blend, it is plotted to the viewport,
And update the display screen and show, refreshed with completing the display of 3D application；By the calculating of dynamic projection matrix, part is determined
The window size of refreshing is refreshed just for the region that screen display interface is changed, improves system performance and user
Interactive response speed, largely reduces the occupancy of GPU, and the load of balance CPU and GPU improves embedded system
The availability of system, substantially increases frame per second, improves the fluency of animation, significantly improves 3D UI(User's
Interface, user interface, also referred to as man-machine interface) scene rendering efficiency, it is more significant in embedded platform effect, bring
Greatly facilitate.
Detailed description of the invention
Fig. 1 is the flow chart of the display method for refreshing preferred embodiment of 3D provided by the invention application.
Fig. 2 is the schematic illustration of the display method for refreshing of 3D provided by the invention application.
Fig. 3 is the schematic illustration of full projection matrix.
Fig. 4 is the schematic illustration of partial projection matrix.
Fig. 5 is the structural block diagram of the display updating system preferred embodiment of 3D provided by the invention application.
Specific embodiment
The present invention provides the display method for refreshing and system of a kind of 3D application, for make the purpose of the present invention, technical solution and
Advantage is clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should be appreciated that herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 provides the flow chart of the display method for refreshing preferred embodiment of 3D application for the present invention, such as scheme
It is shown, it the described method comprises the following steps:
Step S100, the last rendering result that 3D application is shown is saved, and according to the last rendering result
Generate corresponding source texture；
Step S200, the current screen for calculating the 3D application shows that screen changes compared with last screen is shown
Rectangular area；
Step S300, the bias size of viewport is set according to the rectangular area, and recalculate Projection matrix, to the square
Shape region is drawn, and drawing result is generated corresponding update texture；
Step S400, by the update texture and source texture blend, it is plotted to the viewport, and updates the display screen
Display is refreshed with completing the display of 3D application.
Above-mentioned steps are described in detail below with reference to specific embodiment.
The 3D application is the application based on OpenGL ES, and typically entire screen is ceaselessly refreshing.OpenGL
(writing Open Graphics Library entirely) is to define the specification across programming language, cross-platform programming interface, it
For 3-D image (two-dimensional also can).OpenGL is a graphic package interface for profession, is one powerful, and it is convenient to call
Underlying graphics library.When OpenGL draws, former and later two buffer areas can be distributed, the flashing occurred to avoid window in drawing course
Phenomenon.Preceding buffer area is used for screen-refresh, and rear buffer area is for drawing, when calling Swap Buffer(exchange buffering) when
It waits, front and back buffer area is swapped, i.e., preceding buffer area becomes rear buffer area, and rear buffer area becomes preceding buffer area.Ordinary circumstance
Under, OpenGL can call always refresh interface, i.e., content refresh all in every frame viewport.In this way regardless of whether image data becomes
Change, CPU and GPU(Graphic Processing Unit, graphics processor will be occupied) resource drawn, thus
The power consumption of embedded platform is caused to greatly increase, fuselage fever.3D provided by the invention based on OpenGL ES applies refreshing side
Method is a kind of Local hydrodynamic unit method, that is to say, that changes there and just refreshes there, OpenGL is the drafting of 3d space coordinate system
API(Application Programming Interface, application programming interface), the object of drafting is space, and
It is not the pixel coordinate of screen.
The principle of the present invention is illustrated first.Referring to Fig. 2, Fig. 2 is the display brush of 3D provided by the invention application
The schematic illustration of new method.3D application display method for refreshing provided by the invention, first saves source screen shown in Fig. 2 a, also
It is the rendering result of the last display of 3D application.Then it finds out 3D application current screen and shows and shield compared with last screen is shown
The changed rectangular area of curtain, specifically as shown in the rectangle frame of Fig. 2 b.Finally, the rectangle frame only changed to display interface
3D drafting is carried out, and is refreshed, it is specific as shown in Figure 2 c.That is, the present invention does not need to carry out full the picture of entire screen
It draws, only draws the regional area for needing to refresh, thus, improve the response speed of system performance and user's interaction, larger journey
The occupancy for reducing GPU of degree, the load of balance CPU and GPU improve the availability of embedded system.
The display method for refreshing of 3D application provided by the invention based on OpenGL ES, first answers 3D OpenGL ES
It is saved with the last rendering result shown, and corresponding source line is generated according to the rendering result of the last display
Reason.It specifically, is exactly that first creation one shows 3D as terminal display size, for saving the terminal display
Then the PBO of the last rendering result of application saves 3D using the last rendering result shown into the PBO,
And the last rendering result for saving the PBO generates corresponding source texture.The PBO(Pixel Buffer Object)
The as pixel buffer OpenGL, and the extension (ARB_vertex_buffer_object) for GPU.Here caching is worked as
It is so exactly the caching of GPU.PBO is similar with VBO extension, and what only it was stored is pixel data rather than vertex data.In reality
Border is in application, PBO not only saves that the last time renders as a result, also saving initialization for the first time copies the content that screen is shown.Make
The transmitting of quick pixel data with the benefit of PBO, it uses one kind and is DMA(Direct Memory Access) skill
Art is intervened without CPU.The advantages of another PBO is that this DMA is asynchronous.With traditional method from image source (such as image
File or video) be loaded into image data to texture object process.Pixel data is stored in Installed System Memory first, is then used
GlTexImage2D copies data to texture object from Installed System Memory, and include two subprocess has been required to CPU execution.Picture
Prime number is according to being loaded directly into PBO, and there is still a need for CPU for this process to execute, but the process from data from PBO to texture object
DMA is then executed by GPU, is participated in without CPU.And opengl can arrange Asynchronous DMA, it is not necessary to carry out pixel data at once
Transmitting.
In step s 200, the current screen for calculating the 3D application shows that screen occurs compared with last screen is shown
The rectangular area of variation.Specifically, the 3D current screen applied is shown and show and compares with last screen, general
2D coordinate of the area maps that the 3d space of 3D application display changes to screen；It is corresponding according to the 2D Coordinate generation of the screen
Rectangular area.The present invention is total, and rendering object uses father and son's node stratification institutional framework, the object as caused by logic control
After position, size, material change, it will recalculate and be mapped to the changed rectangular area of screen.In practical application,
3D is run on embedded device in application, the operation of user can be received, and for example drag operation etc., the 3D application oneself can also be broadcast
Put the videos such as animation.According to the logical operation that 3D is applied, calculates this secondary screen on screen and show and shield compared with upper secondary screen is shown
The changed rectangular area of curtain, that is, the previous frame screen content that show are changed with the content that next frame screen is shown
Region takes the rectangular area of variation range, and determines the size of the rectangular area.Since OpenGL is 3d space coordinate system
API is drawn, the object of drafting is space, rather than the pixel coordinate of screen, therefore the present invention is needed the area of spatial variations
Domain mapping forms corresponding rectangular area to 2D screen coordinate, according to the 2D screen coordinate.
In step S300, the bias size of viewport is set according to the rectangular area, and recalculate Projection matrix, to institute
It states rectangular area to be drawn, and drawing result is generated into corresponding update texture.Specifically, the step S300 is specifically wrapped
It includes: S310, adjusting the bias size of viewport into the rectangular area；S320, the position for determining viewpoint, using the inclined of nearly section
It moves and size calculates projection matrix, the range of projection is determined according to projection matrix, gets standardization coordinate after perspective division
Between [- 1,1]；S330, the projection matrix is contracted in the rectangular area for needing to update, OpenGL draws the rectangle region
The corresponding display interface in domain；S340, the corresponding drawing result in rectangular area that viewport is drawn is obtained, and generates corresponding update line
Reason.
Also referring to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 are the what comes into a driver's body formed in projection matrix, respectively panoramic projection square
Battle array and local projection matrix.In practical application, the size of adjustment viewport is displaced in the rectangular area 2D of step S200 calculating,
Then corresponding OpenGL drafting is carried out to the rectangular area.Before drawing, the position of viewpoint is first determined, viewpoint determines observation
The size of object, front and back sides, effect of shadow etc..Further according to the rectangular area, can be used nearly section offset and big subtotal
Calculate projection matrix.Then the range that projection is determined according to projection matrix, get after perspective division standardization coordinate [- 1,1] it
Between.According to dynamic projection matrix principle, the projection matrix is contracted in the rectangular area for needing to update, OpenGL draws institute
The corresponding display interface in rectangular area is stated, that is, 3D draws the rectangular area that display interface changes.Pass through gl Read
Pixels obtains the new content corresponding with rectangular area described in next frame that viewport is drawn, and is packaged as one piece of update line
Reason.
In step S400, by the update texture and source texture blend, it is plotted to the viewport, and update described in display
Screen is shown, is refreshed with completing the display of 3D application.Specifically, it first by the update texture and source texture blend, and draws
To the viewport；It is updated on the basis of the display of upper primary screen and shows that the screen is shown, to complete the display brush of 3D application
Newly, and by the current screen after refreshing show that result is sent to PBO and saves.That is, according to the screen of previous frame and next frame
Curtain display content, the rectangular area changed just for the interface 3D that next frame screen is shown is refreshed, to improve
The response speed of system performance and user's interaction, largely reduces the occupancy of GPU, the load of balance CPU and GPU,
Improve the availability of embedded system.
The display method for refreshing of 3D application provided by the invention based on OpenGL ES, passes through the meter of dynamic projection matrix
It calculates, it is determined that the window size for the region Local hydrodynamic unit that interface is changed, then refreshed just for the region of modification, thus
The refreshing for completing 3D application is shown, is improved the response speed of system performance and user's interaction, is largely reduced GPU
Occupancy, the load of balance CPU and GPU improves the availability of embedded system, saved the electricity of embedded device
Amount.
Based on the display method for refreshing that above-mentioned 3D is applied, the present invention also provides a kind of display refreshing sides of 3D application
Method, as shown in Figure 5, comprising:
Source texture generation module 10, for saving the last rendering result that is shown of 3D application, and according on described
One time rendering result generates corresponding source texture；Specifically as described in step S100；
Rectangular area computing module 20, the current screen for calculating the 3D application, which is shown, shows phase with last screen
Rectangular area more changed than screen；Specifically as described in step S200；
Texture generation module 30 is updated, for the bias size of viewport to be arranged according to the rectangular area, recalculates throwing
Shadow matrix draws the rectangular area, and drawing result is generated corresponding update texture；Specifically such as step S300 institute
It states；
Texture blend display module 40, for being plotted to the viewport, and more for the update texture and source texture blend
It newly shows that the screen is shown, is refreshed with completing the display of 3D application；Specifically as described in step S400.
Further, the source texture generation module 10 includes:
PBO creating unit, for creation one as terminal display size, for saving the terminal display
Show the PBO of the last rendering result of 3D application；
Source texture generation unit, for saving 3D using the last rendering result shown into the PBO, and will
The last rendering result that the PBO is saved generates corresponding source texture.
Further, the rectangular area computing module 20 includes:
Map unit, the current screen for applying the 3D, which is shown, to be shown with last screen and compares, by 3D
2D coordinate of the area maps changed using the 3d space of display to screen；
Rectangular area generation unit, for the corresponding rectangular area of 2D Coordinate generation according to the screen.
Further, the update texture generation module 30 includes:
Viewport offset units, for adjusting the bias size of viewport into the rectangular area；
Projection matrix computing unit calculates projection using the offset of nearly section and size for determining the position of viewpoint
Matrix determines the range of projection according to projection matrix, is got between standardization coordinate [- 1,1] after perspective division；
Rectangular area drawing unit, for the projection matrix to be contracted in the rectangular area for needing to update, OpenGL
Draw the corresponding display interface in the rectangular area；
Texture generation unit is updated, for obtaining the corresponding drawing result in rectangular area of viewport drafting, and generates correspondence
Update texture.
Further, the texture blend display module 40 includes:
Texture blend unit is used for the update texture and source texture blend, and is plotted to the viewport；
Screen shows updating unit, shows that the screen is shown for updating on the basis of the display of upper primary screen, with
The display for completing 3D application refreshes, and the current screen after refreshing is shown that result is sent to PBO and saves.
Embedded device of the present invention includes the embedded devices such as mobile terminal, PDA and game host.The movement
Terminal includes mobile phone, tablet computer etc..
In conclusion a kind of 3D application method for refreshing and system based on OpenGL ES provided by the invention, passes through preservation
The last rendering result that 3D application is shown, and corresponding source texture is generated according to the last rendering result；It calculates
The current screen of the 3D application shows the changed rectangular area of screen compared with last screen is shown；According to the square
The bias size of viewport is arranged in shape region, and recalculate Projection matrix, draws to the rectangular area, and by drawing result
Generate corresponding update texture；By the update texture and source texture blend, it is plotted to the viewport, and updates the display screen
Curtain display is refreshed with completing the display of 3D application；By the calculating of dynamic projection matrix, the window size of Local hydrodynamic unit is determined,
Refreshed just for the region that screen display interface is changed, improve the response speed of system performance and user's interaction,
The occupancy of GPU is largely reduced, the load of balance CPU and GPU improves the availability of embedded system,
Substantially increase frame per second, improve the fluency of animation, significantly improve the rendering efficiency of 3D scene, embedded platform effect more
Add significantly, brings and greatly facilitate.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (8)
1. a kind of display method for refreshing of 3D application, which comprises the following steps:
A, the last rendering result that 3D application is shown is saved, and corresponding source is generated according to the last rendering result
Texture；
B, the current screen for calculating the 3D application shows the changed rectangular area of screen compared with last screen is shown；
C, the bias size of viewport is set according to the rectangular area, and recalculate Projection matrix, carries out to the rectangular area
It draws, and drawing result is generated into corresponding update texture；
D, by the update texture and source texture blend, it is plotted to the viewport, and updates the display screen and shows, to complete
The display of 3D application refreshes；
The step C is specifically included:
C1, the bias size of viewport is adjusted into the rectangular area；
C2, the position for determining viewpoint calculate projection matrix using the offset of nearly section and size, are determined and thrown according to projection matrix
The range of shadow is got after perspective division between standardization coordinate [- 1,1]；
C3, the projection matrix is contracted in the rectangular area for needing to update, draws corresponding display circle in the rectangular area
Face；
C4, the corresponding drawing result in rectangular area that viewport is drawn is obtained, and generates corresponding update texture.
2. the display method for refreshing of 3D application according to claim 1, which is characterized in that the step A is specifically included:
A1, upper one as terminal display size, for saving the terminal display display 3D application is created
The PBO of secondary rendering result；
A2,3D is saved using the last rendering result shown into the PBO, and the last time that the PBO is saved
Rendering result generates corresponding source texture.
3. the display method for refreshing of 3D application according to claim 1, which is characterized in that the step B is specifically included:
B1, the 3D current screen applied is shown show and compare with last screen, by the 3D sky of 3D application display
Between the area maps that change to screen 2D coordinate；
B2, the corresponding rectangular area of 2D Coordinate generation according to the screen.
4. the display method for refreshing of 3D application according to claim 1, which is characterized in that the step D is specifically included:
D1, by the update texture and source texture blend, and be plotted to the viewport；
D2, update shows that the screen is shown on the basis of the display of upper primary screen, is refreshed with completing the display of 3D application, and
Current screen after refreshing is shown that result is sent to PBO and saves.
5. a kind of display updating system of 3D application characterized by comprising
Source texture generation module, the last rendering result shown for saving 3D application, and according to the last wash with watercolours
It contaminates result and generates corresponding source texture；
Rectangular area computing module, the current screen for calculating the 3D application show the screen compared with last screen is shown
Changed rectangular area；
Texture generation module is updated, for the bias size of viewport to be arranged according to the rectangular area, recalculate Projection matrix,
The rectangular area is drawn, and drawing result is generated into corresponding update texture；
Texture blend display module, for being plotted to the viewport, and update display for the update texture and source texture blend
The screen is shown, is refreshed with completing the display of 3D application；
The update texture generation module includes:
Viewport offset units, for adjusting the bias size of viewport into the rectangular area；
Projection matrix computing unit calculates projection matrix using the offset of nearly section and size for determining the position of viewpoint,
The range of projection is determined according to projection matrix, is got between standardization coordinate [- 1,1] after perspective division；
Rectangular area drawing unit draws the square for the projection matrix to be contracted in the rectangular area for needing to update
The corresponding display interface in shape region；
Update texture generation unit, for obtain viewport drafting the corresponding drawing result in rectangular area, and generate it is corresponding more
New texture.
6. the display updating system of 3D application according to claim 5, which is characterized in that the source texture generation module packet
It includes:
PBO creating unit is shown as terminal display size, for saving the terminal display for creating one
The PBO of the last rendering result of 3D application；
Source texture generation unit, for saving 3D using the last rendering result shown into the PBO, and will be described
The last rendering result that PBO is saved generates corresponding source texture.
7. the display updating system of 3D application according to claim 5, which is characterized in that the rectangular area computing module
Include:
Map unit, the current screen for applying the 3D, which is shown, to be shown with last screen and compares, and 3D is applied
2D coordinate of the area maps that the 3d space of display changes to screen；
Rectangular area generation unit, for the corresponding rectangular area of 2D Coordinate generation according to the screen.
8. the display updating system of 3D application according to claim 5, which is characterized in that the texture blend display module
Include:
Texture blend unit is used for the update texture and source texture blend, and is plotted to the viewport；
Screen shows updating unit, shows that the screen is shown for updating on the basis of the display of upper primary screen, to complete
The display of 3D application refreshes, and the current screen after refreshing is shown that result is sent to PBO and saves.
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| CN108664486B (en) * | 2017-03-28 | 2022-12-09 | 深圳市雅阅科技有限公司 | Webpage texture memory management method and device |
| CN107292960A (en) * | 2017-06-30 | 2017-10-24 | 浙江科澜信息技术有限公司 | A kind of Local hydrodynamic unit method that large-scale terrain is rendered in three-dimensional scenic |
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| CN110580125B (en) * | 2018-06-07 | 2022-04-22 | 广州视源电子科技股份有限公司 | Partial refreshing method, device, equipment and medium for display interface |
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