CN104200053A - Method and system for implementing three-dimensional model index buffer sharing and system creation - Google Patents
Method and system for implementing three-dimensional model index buffer sharing and system creation Download PDFInfo
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Abstract
The invention discloses a method and system for implementing the three-dimensional model index buffer sharing and system creation and relates to the technical field of three-dimensional model establishment. The method includes setting the arraying manner of the three-dimensional model index buffer; loading an m-1th three-dimensional model, and generating and storing a m-1th index buffer, as global variables, according to the arraying manner of the three-dimensional model index buffer; loading an mth three-dimensional model, judging whether updating the m-1th index buffer, generating an mth index buffer, determining sharing the index buffer and storing or not according to the the arraying manner by comparing the number of the peaks of the m-1th three-dimensional model and that of the mth three-dimensional model; repeating the last step until an nth three-dimensional model is loaded. The m and n are natural numbers, and 2</=m</=n. By the aid of the method, when multiple three-dimensional models are established, the memory resources occupation rate is decreased, and the operating efficiency of the system is improved.
Description
Technical field
The present invention relates to three-dimensional space model modeling technique field, relate in particular to a kind of method and system that three-dimensional model index buffering is shared, system creates of realizing.
Background technology
At present, in field of three-dimension modeling, in order to reduce the occupancy of calculator memory, improve graph rendering speed, generally each model is used independently summit buffering (Vertex Buffer) and independently index buffering (Index Buffer).Wherein, index buffering, for preserving the memory source of summit buffering, is used for telling d engine to play up the order on summit, makes index of reference buffering can avoid unnecessary repetition resource to occur in internal memory.
But, while there is a plurality of model in a three-dimensional model system, because each model is used independently index buffering, so a large amount of index buffering of a plurality of models still can consume a large amount of internal memories, even collapses thereby cause running efficiency of system to decline.
Summary of the invention
The object of the present invention is to provide a kind of three-dimensional model index of realizing to cushion method and system shared, that system creates, thereby solve the foregoing problems existing in prior art.
To achieve these goals, the technical solution used in the present invention is as follows:
Realize three-dimensional model index and cushion a shared method, comprise the steps:
S101, arranges the arrangement mode that three-dimensional model index cushions;
S102, loads m-1 three-dimensional model, according to the arrangement mode of described index buffering, generates m-1 index buffering, and storage; Described m-1 index buffering is global variable;
S103, load m three-dimensional model, by the number of vertices of more described m-1 three-dimensional model and the number of vertices of described m three-dimensional model, judging whether will be according to the arrangement mode of described index buffering, upgrade described m-1 index buffering, generate m index buffering, determine and share index buffering, and storage;
S104, repeating step S103, until n three-dimensional model all loaded;
Wherein, m, n are natural number, 2≤m≤n.
Further, before step S101, also comprise step, the arrangement mode on the summit of three-dimensional model is set.
Particularly, described m-1 index buffering is specially the static variable of class.
Wherein, step S103 is specially, load m three-dimensional model, the number of vertices of more described m-1 three-dimensional model and the number of vertices of described m three-dimensional model, if the number of vertices of m three-dimensional model is greater than the number of vertices of m-1 three-dimensional model, according to the arrangement mode of described index buffering, upgrade described m-1 index buffering, generate m index buffering as sharing index buffering, and storage; If the number of vertices of m three-dimensional model is less than or equal to the number of vertices of m-1 three-dimensional model, keep described m-1 index buffering, as shared index buffering.
Realize three-dimensional model index and cushion a shared system, comprise,
Module is set: for the arrangement mode of three-dimensional model index buffering is set;
Compare judge module: for comparing the number of vertices of m-1 three-dimensional model and the number of vertices of m three-dimensional model, and to upgrade described m-1 index buffering according to the arrangement mode of described index buffering for judging whether, generate m index buffering, determine and share index buffering, and storage;
Index buffering generation module: for generating and/or upgrading index and cushion;
Three-dimensional model load-on module: for loading three-dimensional model.
Realize the method that three-dimensional model system creates, comprise the steps,
S201, records initial value and the stop value of the index buffering that each three-dimensional model uses;
S202, initial value and the stop value of the index buffering that each three-dimensional model obtaining in the shared index buffering of above-mentioned generation, step S201 is used all send to d engine;
S203, utilizes described d engine to draw each three-dimensional model, creates three-dimensional model system.
Particularly, described d engine comprises OPENGL and DIRECTX.
Realize the system that three-dimensional model system creates, comprise,
The above-mentioned three-dimensional model index of realizing cushions shared system;
Logging modle: for recording initial value and the stop value of the index buffering of each three-dimensional model use;
Forwarding module: initial value and the stop value of the index buffering of using for each three-dimensional model obtaining in shared index buffering that claim 1-4 any one is generated, step S201 all send to d engine;
D engine: for drawing each three-dimensional model, create three-dimensional model system.
Particularly, described d engine comprises OPENGL and DIRECTX.
The invention has the beneficial effects as follows: the present invention cushions by obtaining index maximum in a plurality of three-dimensional models, and then make a plurality of three-dimensional models share this maximum index buffering, while creating a plurality of three-dimensional model, reduce the occupancy of memory source, and then improved the operational efficiency of system.
Accompanying drawing explanation
Fig. 1 is that a kind of three-dimensional model index of realizing that the embodiment of the present invention provides cushions shared method flow schematic diagram;
Fig. 2 is a kind of method flow schematic diagram of realizing the establishment of three-dimensional model system that the embodiment of the present invention provides;
Fig. 3 is that the three-dimensional model that experimental example one of the present invention provides is shared the schematic diagram that index cushions;
Fig. 4 is that the three-dimensional model that experimental example two of the present invention provides is shared the schematic diagram that index cushions;
Fig. 5 be experimental example three of the present invention provide the establishment solar system three-dimensional model system time share the schematic diagram of index buffering;
Fig. 6 be experimental example four of the present invention provide establishment pit shaft three-dimensional model system time share the schematic diagram of index buffering.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.Should be appreciated that embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In current two pandemic d engine opengl and DIRECTX, all use summit buffering (Vertex Buffer) and index buffering (Index Buffer) to reduce calculator memory and take, improve graph rendering speed.Index buffering, for preserving the memory source of vertex index, is used for telling d engine to play up the order on summit, makes index of reference buffering can avoid unnecessary repetition resource to occur in internal memory.
Such as, draw two triangles that there is no index buffering, because each triangle has three summits, therefore 2 triangles need 6 summits.And first vertex of a triangle 0 and second vertex of a triangle 4 overlap, first vertex of a triangle 2 and second vertex of a triangle 5 overlap, in such cases, if make index of reference buffering, index buffering can record the order on summit, and tell d engine by the order of playing up summit, only need 4 points just can draw this 2 triangles.
Visible, the summit of each summit buffering comprises x, y, z coordinate, also may comprise texture coordinate, color attribute etc., and the summit of each index buffering is a round values, therefore when summit quantity is more, make index of reference buffering can significantly reduce the quantity on summit, avoid repeating data to take a large amount of internal memories.In field of three-dimension modeling, be all generally each model with summit buffering independently and independently index cushion to reduce model committed memory.
But, when model is a lot of in a three-dimensional scenic, even if each model makes index of reference buffering, still can consume a large amount of internal memories, thereby cause running efficiency of system to decline, even collapse.The amount of ram taking in order to reduce a plurality of index bufferings of a plurality of three-dimensional models, the embodiment of the present invention provides a kind of a plurality of three-dimensional model to share the method for an index buffering, make a plurality of three-dimensional models can share same index buffering, thereby solve each three-dimensional model, use the large problem of EMS memory occupation amount that independently index buffering is brought.
As shown in Figure 1, the embodiment of the present invention provides a kind of three-dimensional model index of realizing to cushion shared method, comprises the steps:
S101, arranges the arrangement mode that three-dimensional model index cushions;
S102, loads m-1 three-dimensional model, according to the arrangement mode of described index buffering, generates m-1 index buffering, and storage; Described m-1 index buffering is global variable;
S103, load m three-dimensional model, by the number of vertices of more described m-1 three-dimensional model and the number of vertices of described m three-dimensional model, judging whether will be according to the arrangement mode of described index buffering, upgrade described m-1 index buffering, generate m index buffering, determine and share index buffering, and storage;
S104, repeating step S103, until n three-dimensional model all loaded;
Wherein, m, n are natural number, 2≤m≤n.
Because n three-dimensional model all loads according to the arrangement mode of identical index buffering, n corresponding index buffering, all subsets that a wherein maximum index cushions, so, as long as while loading n three-dimensional model, all according to the arrangement mode of identical index buffering, load, and find the maximum index buffering in a plurality of index bufferings that n three-dimensional model is corresponding, using this maximum index buffering as shared index buffering, be that n three-dimensional model is just by a shared index buffering, like this, just can reduce EMS memory occupation resource.
In the embodiment of the present invention, by said method, found maximum index buffering in n the index buffering that n three-dimensional model is corresponding, thereby make n three-dimensional model can share an index, cushioned.
In the embodiment of the present invention, before step S101, also comprise step, the arrangement mode on the summit of three-dimensional model is set.After the arrangement mode on the summit of three-dimensional model is fixed, the arrangement mode of the index buffering of three-dimensional model is also just fixing, in the embodiment of the present invention, the arrangement mode of the index buffering of three-dimensional model by being set, the arrangement mode on the summit of three-dimensional model is set, simple, easy operating.
In the embodiment of the present invention, m-1 index buffering is specially the static variable of class.For programming languages such as C#, JAVA, can cushion the static variable that is set to class by m-1 index, become global variable, can be accessed by other three-dimensional model.
In the embodiment of the present invention, step S103 is specially, load m three-dimensional model, the number of vertices of more described m-1 three-dimensional model and the number of vertices of described m three-dimensional model, if the number of vertices of m three-dimensional model is greater than the number of vertices of m-1 three-dimensional model, according to the arrangement mode of described index buffering, upgrade described m-1 index buffering, generate m index buffering as sharing index buffering, and storage; If the number of vertices of m three-dimensional model is less than or equal to the number of vertices of m-1 three-dimensional model, keep described m-1 index buffering, as shared index buffering.By adopting in this way, just can obtain index buffering maximum in m three-dimensional model, the index buffering of remaining three-dimensional model is oneself of this maximum index buffering, thereby makes all three-dimensional models share this maximum index buffering.
The embodiment of the present invention also provides a kind of three-dimensional model index of realizing to cushion shared system, comprises,
Module is set: for the arrangement mode of three-dimensional model index buffering is set;
Compare judge module: for comparing the number of vertices of m-1 three-dimensional model and the number of vertices of m three-dimensional model, and the arrangement mode for judging whether to cushion according to described index, upgrade described m-1 index buffering, generate m index buffering, and storage;
Index buffering generation module: for generating and/or upgrading index and cushion;
Three-dimensional model load-on module: for loading three-dimensional model.
This is realized three-dimensional model index and cushions shared system and cushion shared method for the three-dimensional model index of realizing of realizing above-described embodiment and providing, to reduce a plurality of three-dimensional models, use the independently memory usage of a plurality of index bufferings, and then improve the operational efficiency of system and the management of being convenient to internal memory.
The embodiment of the present invention also provides a kind of method that three-dimensional model system creates that realizes, comprises the steps,
S201, records initial value and the stop value of the index buffering that each three-dimensional model uses;
S202, will adopt initial value and the stop value that three-dimensional model index cushions the index buffering that each three-dimensional model of obtaining in shared index buffering that shared method generates, step S201 uses of realizing in above-described embodiment all to send to d engine;
S203, utilizes described d engine to draw each three-dimensional model, creates three-dimensional model system.
The creation method of the three-dimensional model system that the embodiment of the present invention provides, in creating three-dimensional model plant process, a plurality of three-dimensional models in system are shared index buffering, the method that a plurality of three-dimensional models are shared index buffering provides for the above embodiment of the present invention, adopt the creation method of this three-dimensional model system, reduce the occupancy of internal memory, and then improved the operating rate of system creation three-dimensional model system.
Wherein, in creating three-dimensional model system, the d engine of use comprises OPENGL and DIRECTX.Use d engine to create in three-dimensional model process, need to obtain the index buffering that three-dimensional model is used, if the index of three-dimensional model buffering is while sharing the subset of index buffering, also need to obtain initial value and the stop value of the index buffering that this three-dimensional model uses.Thereby three-dimensional model is drawn and played up.
The embodiment of the present invention also provides a kind of system that three-dimensional model system creates that realizes, comprises,
The three-dimensional model index of realizing that the above embodiment of the present invention provides cushions shared system;
Logging modle: for recording initial value and the stop value of the index buffering of each three-dimensional model use;
Forwarding module: initial value and the stop value of the index buffering of using for each three-dimensional model obtaining in shared index buffering that claim 1-4 any one is generated, step S201 all send to d engine;
D engine: for drawing each three-dimensional model, create three-dimensional model system.
Method that system that three-dimensional model system creates creates for the three-dimensional model system that realizes that realizes above-described embodiment and provide is provided for this, to reduce a plurality of three-dimensional models, use the independently memory usage of a plurality of index bufferings, and then improve the operational efficiency of system and the management of being convenient to internal memory.
Wherein, described d engine comprises OPENGL and DIRECTX.These two kinds of d engines, advanced technology and maturation, can meet the establishment of all three-dimensional models.
Experimental example one
As shown in Figure 3, although 4 model summit buffered datas may be different, their index buffering is but identical, so these 4 models can be shared an index buffering.
Experimental example two
As shown in Figure 4,4 models are followed successively by model A, Model B, MODEL C and model D from left to right.As can be seen from the figure, the index of 4 models buffering is all different, so 4 models can not simply be shared index buffering.But the index of model A buffering is a subset of the index buffering of Model B just, the index buffering of MODEL C, D is respectively also a subset of the index buffering of Model B, that is to say, in 4 models, the index buffering of other three models is all the subset of the index buffering of one of them model, these 4 models are shared the index buffering of maximum model, the i.e. index of model A, B, C, D Share Model B buffering so.
Experimental example three
As shown in Figure 5, creating a three-dimensional solar is model, the solar system has 8 major planets and thousands of asteroid, in constructive process, in order to reduce memory usage, make all spheroids that represents planet share an index buffering, even only create a summit buffering and allow these spheroids share data.Like this, thousands of although three-dimensional solar is spheroid in model, the internal memory taking in constructive process is but very little.But, in order to make all spheroids that represents planet share an index buffering, must guarantee in constructive process the arrangement mode that the arrangement mode of the index of all spheroids buffering all will cushion with reference to the index of maximum spheroid.
Experimental example four
As shown in Figure 6, create thousands of three-dimensional well cylinder system model, the depth range of these pit shafts is different, and trend is also different, and the vertex data using while therefore building and index data are just different.If each pit shaft is to use independently vertex data and index data, can take a large amount of internal memories, in this experimental example, allow all three-dimensional pit shafts share an index buffering, only need to be when building three-dimensional pit shaft, for that maximum pit shaft index building buffering of hits (number of vertex), all the other pit shafts just can be shared this index buffering.A because part for the index buffered data of all the other pit shafts index buffered data that to be this maximum.But in constructive process, the arrangement mode that the arrangement mode of the index of all pit shafts buffering all will cushion with reference to the index of maximum pit shaft.
By adopting technique scheme disclosed by the invention, obtained following useful effect: the present invention cushions by obtaining index maximum in a plurality of three-dimensional models, and then make a plurality of three-dimensional models share this maximum index buffering, reduced while there is a plurality of three-dimensional model, the occupancy of memory source, and then improved the operational efficiency of system.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Those skilled in the art it should be understood that the sequential of the method step that above-described embodiment provides can carry out accommodation according to actual conditions, also can carry out according to actual conditions are concurrent.
All or part of step in the method that above-described embodiment relates to can come the hardware that instruction is relevant to complete by program, described program can be stored in the storage medium that computer equipment can read, for carrying out all or part of step described in the various embodiments described above method.Described computer equipment, such as: personal computer, server, the network equipment, intelligent mobile terminal, intelligent home device, wearable intelligent equipment, vehicle intelligent equipment etc.; Described storage medium, such as: RAM, ROM, magnetic disc, tape, CD, flash memory, USB flash disk, portable hard drive, storage card, memory stick, webserver stores, network cloud storage etc.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, commodity or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, commodity or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment that comprises described key element and also have other identical element.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (9)
1. realize three-dimensional model index and cushion a shared method, it is characterized in that, comprise the steps:
S101, arranges the arrangement mode that three-dimensional model index cushions;
S102, loads m-1 three-dimensional model, according to the arrangement mode of described index buffering, generates m-1 index buffering, and storage; Described m-1 index buffering is global variable;
S103, load m three-dimensional model, by the number of vertices of more described m-1 three-dimensional model and the number of vertices of described m three-dimensional model, judging whether will be according to the arrangement mode of described index buffering, upgrade described m-1 index buffering, generate m index buffering, determine and share index buffering, and storage;
S104, repeating step S103, until n three-dimensional model all loaded;
Wherein, m, n are natural number, 2≤m≤n.
2. the three-dimensional model index of realizing according to claim 1 cushions shared method, it is characterized in that, before step S101, also comprises step, and the arrangement mode on the summit of three-dimensional model is set.
3. the three-dimensional model index of realizing according to claim 1 cushions shared method, it is characterized in that, described m-1 index buffering is specially the static variable of class.
4. the three-dimensional model index of realizing according to claim 1 cushions shared method, it is characterized in that, step S103 is specially, load m three-dimensional model, the number of vertices of more described m-1 three-dimensional model and the number of vertices of described m three-dimensional model, if the number of vertices of m three-dimensional model is greater than the number of vertices of m-1 three-dimensional model, according to the arrangement mode of described index buffering, upgrade described m-1 index buffering, generate m index buffering as sharing index buffering, and storage; If the number of vertices of m three-dimensional model is less than or equal to the number of vertices of m-1 three-dimensional model, keep described m-1 index buffering, as shared index buffering.
5. realize three-dimensional model index and cushion a shared system, it is characterized in that, comprise,
Module is set: for the arrangement mode of three-dimensional model index buffering is set;
Compare judge module: for comparing the number of vertices of m-1 three-dimensional model and the number of vertices of m three-dimensional model, and to upgrade described m-1 index buffering according to the arrangement mode of described index buffering for judging whether, generate m index buffering, determine and share index buffering, and storage;
Index buffering generation module: for generating and/or upgrading index and cushion;
Three-dimensional model load-on module: for loading three-dimensional model.
6. realize the method that three-dimensional model system creates, it is characterized in that, comprise the steps,
S201, records initial value and the stop value of the index buffering that each three-dimensional model uses;
S202, initial value and the stop value of the index buffering that each three-dimensional model obtaining in the shared index buffering generating in claim 1-4 any one, step S201 is used all send to d engine;
S203, utilizes described d engine to draw each three-dimensional model, creates three-dimensional model system.
7. the method that realizes the establishment of three-dimensional model system according to claim 6, is characterized in that, described d engine comprises OPENGL and DIRECTX.
8. realize the system that three-dimensional model system creates, it is characterized in that, comprise,
The three-dimensional model index of realizing claimed in claim 5 cushions shared system;
Logging modle: for recording initial value and the stop value of the index buffering of each three-dimensional model use;
Forwarding module: initial value and the stop value of the index buffering of using for each three-dimensional model obtaining in shared index buffering that claim 1-4 any one is generated, step S201 all send to d engine;
D engine: for drawing each three-dimensional model, create three-dimensional model system.
9. the system that realizes the establishment of three-dimensional model system according to claim 8, is characterized in that, described d engine comprises OPENGL and DIRECTX.
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Address after: 834000 Karamay Road, the Xinjiang Uygur Autonomous Region, No. 22 Patentee after: Red software Limited by Share Ltd Address before: 834000 Karamay Road, the Xinjiang Uygur Autonomous Region, No. 22 Patentee before: Karamay Hongyou Software Co., Ltd. |