CN114494551A

CN114494551A - Three-dimensional model map processing method and device, computer equipment and storage medium

Info

Publication number: CN114494551A
Application number: CN202210033682.0A
Authority: CN
Inventors: 徐祖亮; 燕翔
Original assignee: Netease Hangzhou Network Co Ltd
Current assignee: Netease Hangzhou Network Co Ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-05-13

Abstract

The embodiment of the application discloses a map processing method and device of a three-dimensional model, computer equipment and a storage medium. The method comprises the following steps: carrying out UV expansion on a plurality of submodels forming the combined model to obtain a UV graph in a UV interval; adjusting the size of each UV graph according to the size of each sub-model when the merged model is formed to form an adjusted UV graph; arranging the positions of the adjusted UV pictures in the UV interval, and acquiring target UV pictures formed by the arranged adjusted UV pictures, wherein the lengths and the widths of the target UV pictures are equal; and generating a model map corresponding to the merged model based on the target UV map. The corresponding UV map is not changed after each sub-model is subjected to UV expansion, so that the mapping generated by the sub-models before combination can restore the details of the combined model to a greater extent, and the precision of the mapping on the combined model is reserved.

Description

Three-dimensional model map processing method and device, computer equipment and storage medium

Technical Field

The application relates to the technical field of three-dimensional models, in particular to a map processing method and device of a three-dimensional model, computer equipment and a storage medium.

Background

After the submodels needing to be combined are combined, the UV data set before the submodels are combined can be disassembled and rearranged, but partial chargings generated based on the UV data set before the submodels are combined can depend on the UV data set before the submodels are combined when in use, so that the partial chargings can not correctly restore the details of the models after the UV data set before the submodels are combined is disassembled and rearranged, and the chargings are low in precision.

Disclosure of Invention

The embodiment of the application provides a mapping processing method and device for a three-dimensional model, computer equipment and a storage medium, which can enable a mapping generated by a sub-model before merging to restore the details of a merged model to a greater extent and keep the precision of the mapping on the merged model.

The embodiment of the application provides a map processing method of a three-dimensional model, which comprises the following steps:

carrying out UV expansion on a plurality of submodels forming the combined model to obtain a UV graph in a UV interval;

adjusting the size of each UV graph according to the size of each sub-model when the merged model is formed to form an adjusted UV graph;

arranging the positions of the adjusted UV pictures in the UV interval, and acquiring target UV pictures formed by the arranged adjusted UV pictures, wherein the lengths and the widths of the target UV pictures are equal;

and generating a model map corresponding to the merged model based on the target UV map.

Correspondingly, an embodiment of the present application further provides a map processing apparatus for a three-dimensional model, including:

the acquisition unit is used for carrying out UV expansion on the multiple submodels forming the combined model to obtain a UV image in a UV interval;

the adjusting unit is used for adjusting the size of each UV graph according to the size of each sub-model when the combined model is formed to form an adjusted UV graph;

the arranging unit is used for arranging the positions of the adjusted UV pictures in the UV interval to obtain target UV pictures formed by the arranged adjusted UV pictures, wherein the lengths and the widths of the target UV pictures are equal;

and the generating unit is used for generating a model map corresponding to the merged model based on the target UV map.

Optionally, the adjusting unit is further configured to:

displaying the adjusted UV map in the UV interval on a graphical user page;

in response to a size setting operation for the adjusted UV graph in the UV interval, updating the size of the adjusted UV graph corresponding to the size setting operation in the UV interval;

and arranging the positions of the adjusted UV pictures in the UV interval, and acquiring a target UV picture formed by the arranged adjusted UV pictures.

Optionally, the arranging unit is further configured to:

acquiring a reference rectangle of each adjusted UV picture, wherein the reference rectangle is a minimum rectangle containing the adjusted UV picture;

arranging the reference rectangles to form arrangement reference pictures with the same length and width;

and arranging the positions of the adjusted UV pictures in the UV interval according to the relative position relation of the reference rectangles in the arrangement reference picture, and acquiring the target UV pictures formed by the arranged adjusted UV pictures.

Optionally, the arranging unit is further configured to:

arranging the reference rectangles side by side in the horizontal direction according to the sequence of the heights of the rectangles from high to low, wherein one side of two adjacent reference rectangles on the left and the right are overlapped in the arrangement process, and the height which can be occupied by the rectangles formed after the reference rectangles are arranged is the preset highest height;

if the sum of the heights of at least two reference rectangles in the reference rectangles does not exceed the preset highest height, arranging the reference rectangles with the height sum not exceeding the preset highest height in parallel up and down in the arranged reference rectangles to form an arrangement candidate graph;

if the length and the width of the arrangement candidate graph are the same, taking the arrangement candidate graph as the arrangement reference graph;

and if the length and the width of the arrangement candidate graphs are different, increasing the preset highest height, and returning to execute the step of arranging the reference rectangles with the height sum not exceeding the preset highest height in the arranged reference rectangles up and down in parallel to form the arrangement candidate graphs if the height sum of at least two target reference rectangles in the reference rectangles does not exceed the preset highest height.

Optionally, the obtaining unit is further configured to:

obtaining each sub-model;

carrying out UV expansion on each sub-model to obtain an initial expansion diagram corresponding to each sub-model;

and setting the size of the initial development graph in the UV interval to obtain the UV graph.

Optionally, the obtaining unit is further configured to:

setting the length and the width of the initial development map to be the same, and setting the length and the width of the initial development map to be the same as the length and the width of the UV interval to obtain the UV map; /or

And setting the length and the width of the initial development drawing according to the length-width ratio of the sub-model mapping corresponding to the initial development drawing and the length and the width of the UV interval to obtain the UV drawing, wherein the length and the width of the UV drawing do not exceed the length and the width of the UV interval.

Optionally, the generating unit is further configured to:

obtaining an initial mapping type corresponding to each sub-model;

displaying the initial map type of each sub-model on a graphical user interface;

determining a modified map type in response to a modification operation on the initial map type in the graphical user interface;

determining a modified map type corresponding to each sub-model according to the modified map type and the corresponding relation between each sub-model and the initial map type;

and generating a model map corresponding to the merged model based on the target UV map and the modified map type corresponding to each sub-model.

Optionally, the arranging unit is further configured to:

displaying the target UV map within the UV interval on a graphical user interface;

determining a background area in the UV interval except the target UV image;

in response to a color modification operation on the background area in the graphical user interface, updating a color of the background area corresponding to the color modification operation.

Optionally, the adjusting unit is further configured to:

determining bounding box sizes of the submodels in the merged model when the submodels form the merged model;

comparing the size of the bounding boxes of the submodels to obtain the size ratio of the bounding boxes of the submodels;

and adjusting the size of each UV graph according to the size proportion to form the adjusted UV graph.

Similarly, an embodiment of the present application further provides a computer device, including:

a memory for storing a computer program;

a processor for executing any step of the map processing method of the three-dimensional model.

In addition, an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of any one of the map processing methods for the three-dimensional model.

The embodiment of the application provides a map processing method and device for a three-dimensional model, computer equipment and a storage medium, when a plurality of submodels are combined into a combined model, a UV map obtained by unfolding before combining the submodels is not required to be disassembled, the whole UV map obtained by unfolding each submodel can be arranged in a UV interval, and then a model map of the combined model is obtained according to a target UV map after arrangement.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings to be recalled in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a system diagram of a map processing apparatus for a three-dimensional model according to an embodiment of the present disclosure;

FIG. 2 is a schematic flowchart of a mapping processing method for a three-dimensional model according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a merged model provided by an embodiment of the present application;

FIG. 4 is a schematic view of a UV diagram after adjustment provided by an embodiment of the present application;

FIG. 5 is a schematic illustration of the sizing of the adjusted UV pattern provided by the embodiments of the present application;

FIG. 6 is a schematic diagram illustrating candidate patterns for ranking provided by an embodiment of the present application;

FIG. 7 is another schematic diagram of an alternative arrangement of the layout candidates provided in the embodiments of the present application;

FIG. 8 is another schematic flow chart of a mapping processing method for a three-dimensional model according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a map processing apparatus for a three-dimensional model according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a computer device for three-dimensional modeling provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the application provides a map processing method and device for a three-dimensional model, computer equipment and a storage medium. Specifically, the map processing method for the three-dimensional model according to the embodiment of the present application may be executed by a computer device, where the computer device may be a terminal or a server. The terminal can be a terminal device such as a smart phone, a tablet Computer, a notebook Computer, a touch screen, a game machine, a Personal Computer (PC), a Personal Digital Assistant (PDA), and the like, and the terminal can also include a client, which can be a game application client, a front-end browser client carrying a game program, or an instant messaging client, and the like. The server may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing basic cloud computing services such as cloud service, a cloud database, cloud computing, a cloud function, cloud storage, network service, cloud communication, middleware service, domain name service, security service, content distribution network service, big data and an artificial intelligence platform.

For example, when the mapping processing method of the three-dimensional model is operated on a terminal, the terminal device stores a three-dimensional modeling application program, and can present a graphical user interface in the three-dimensional modeling application program. The terminal device is used for interacting with a user through a graphical user interface, for example, downloading and installing a three-dimensional modeling application program through the terminal device and running the application program. The manner in which the terminal device provides the graphical user interface to the user may include a variety of ways, for example, the graphical user interface may be rendered for display on a display screen of the terminal device or presented by holographic projection. For example, the terminal device may include a touch display screen for presenting a graphical user interface including a modeling process screen and receiving an operation instruction generated by a user acting on the graphical user interface, and a processor for running the three-dimensional modeling application, generating the graphical user interface, responding to the operation instruction, and controlling display of the graphical user interface on the touch display screen.

Referring to fig. 1, fig. 1 is a system schematic diagram of a mapping processing apparatus for a three-dimensional model according to an embodiment of the present disclosure. The system may include at least one terminal. The terminal is used for carrying out UV expansion on the multiple submodels forming the combined model to obtain a UV image in a UV interval; adjusting the size of each UV graph according to the size of each sub-model when the merged model is formed to form an adjusted UV graph; arranging the positions of the adjusted UV pictures in a UV interval, and acquiring target UV pictures formed by the arranged adjusted UV pictures, wherein the lengths and the widths of the target UV pictures are equal; and generating a model map corresponding to the combined model based on the target UV map.

The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

The embodiment will be described in terms of a mapping processing method for a three-dimensional model, which may be specifically integrated in a terminal device, where the terminal device may include a smart phone, a notebook computer, a tablet computer, a personal computer, and other devices.

The method for processing the map of the three-dimensional model provided in the embodiment of the present application may be executed by a processor of a terminal, as shown in fig. 2, a specific flow of the method for processing the map of the three-dimensional model mainly includes steps 201 to 204, which are described in detail as follows:

step 201, performing UV expansion on a plurality of submodels forming the combined model to obtain a UV image in a UV interval.

In the embodiment of the present application, the merged model is formed by combining a plurality of sub-models through the connection positions of the respective sub-models, for example, as shown in the merged model diagram of fig. 3, the merged model is a game character model, and the sub-models forming the game character model may be a glove sub-model 302, an forearm sub-model 303, a decoration sub-model 304 on the forearm, and the like of the game character model.

In the embodiment of the present application, when rendering a map on a surface of a three-dimensional model, UV coordinates need to be set for vertices on the three-dimensional model, so that each point on the UV map corresponds to the vertex of the model surface exactly according to the UV coordinates. The UV is short for U, V texture map coordinates and can also be called as texture mapping coordinates, in the virtual model, the UV can accurately correspond each point on the image to the surface of the virtual model, so that the virtual model can present a corresponding visual effect, and the UV expansion refers to converting the surface of the virtual model into a planar representation. In addition, the process of creating the UV map according to the sub-model is to determine boundaries of respective planes of the sub-model, cut the sub-model according to the boundaries of the sub-model, obtain a plurality of cut planes, and thereby form the UV map according to the cut planes.

In the embodiment of the application, the UV interval is an interval occupied by a UV map generated by each sub-model, the UV interval can be determined according to a value range of U and a value range of V, the value range of U is 0 to 1, the value range of V is 0 to 1, and the value range of a UV coordinate formed according to the value ranges of U and V is the UV interval.

In the embodiment of the application, after the terminal acquires the UV picture in the UV interval obtained after the UV expansion of each sub-model, the UV picture of each sub-model can be displayed in the graphical user interface of the terminal, so that a user can conveniently see the UV picture of each sub-model from the graphical user interface.

In the embodiment of the present application, after the boundary of the sub-model is cut, the initial developed image obtained after cutting needs to be processed, so as to obtain the UV developed image more matched with the surface of the sub-model. Specifically, the "obtaining the UV map in the UV interval by performing UV expansion on the multiple submodels constituting the combined model" in the step 201 may specifically be:

acquiring each sub-model;

setting the size of the initial development in the UV interval results in a UV map.

In the embodiment of the present application, the step of "setting the size of the initial development in the UV region to obtain the UV map" may be:

setting the length and the width of the initial development image to be the same, and setting the length and the width of the initial development image to be the same as the length and the width of the UV interval to obtain a UV image; /or

And setting the length and width of the initial development diagram according to the length-width ratio of the sub-model mapping corresponding to the initial development diagram and the length and width of the UV interval to obtain the UV diagram, wherein the length and width of the UV diagram do not exceed the length and width of the UV interval.

And step 202, adjusting the size of each UV graph according to the size of each sub-model when the merged model is formed to form an adjusted UV graph.

In this embodiment of the present application, in order to match the size of the model map of the sub-model with the size of the sub-model in the merged model, the size of the UV map corresponding to each sub-model may be set according to the size ratio of each sub-model in the merged model, specifically, in step 202, "adjust the size of each UV map according to the size of each sub-model when the merged model is composed, and form an adjusted UV map" may be:

when each sub-model forms a combined model, determining the size of a bounding box of each sub-model in the combined model;

comparing the size of the bounding box of each submodel to obtain the size ratio of the bounding box of each submodel;

and adjusting the size of each UV picture according to the size ratio to form the adjusted UV picture.

In the embodiment of the present application, the method for adjusting the size of each UV map according to the size ratio is not limited, the bounding box size ratio of the same sub-model and other sub-models may be set to be the same as the adjusted UV map size ratio, or the bounding box size ratio of the same sub-model and other sub-models may be set to have a multiple relationship with the adjusted UV map size ratio. For example, if the size ratio of the bounding box of the submodel a to the bounding box of the submodel B is m: n, the size ratio of the adjusted UV map corresponding to the submodel a to the adjusted UV map corresponding to the submodel B is also m: n. Alternatively, if the size ratio of the bounding box of the sub-model a to the bounding box of the sub-model B is m: n, the size ratio of the adjusted UV map corresponding to the sub-model a to the adjusted UV map corresponding to the sub-model B may be 2m:2 n.

In this embodiment of the application, after the adjusted UV map is generated, in order to enable a user to know the size of the adjusted UV map formed after the UV map is adjusted, the adjusted UV map of each sub-model may be displayed in a graphical user interface of the terminal. For example, as shown in the adjusted UV diagram of fig. 4, the graphical user interface may include a sub-page 401 displaying UV intervals, and each adjusted UV diagram corresponding to the glove sub-model 302, the forearm sub-model 303, and the decoration sub-model 304 on the forearm in fig. 3 is displayed in the sub-page 401, where one sub-model corresponds to one adjusted UV diagram, for example, the decoration sub-model 304 on the forearm corresponds to the adjusted UV diagram 402 in the sub-page 401.

In the embodiment of the application, after the adjusted UV map of each sub-model is displayed in the graphical user interface of the terminal, the user can adjust the overall size of the adjusted UV map of the sub-model, so that the details of the sub-model corresponding to the adjusted UV map in the synthetic model are highlighted, the sub-model is more detailed in the synthetic model when being viewed in a near view, and the sub-model is not blurred. Specifically, after the step 202 "adjusting the size of each UV map according to the size of each sub-model when the merged model is composed to form an adjusted UV map", the method further includes:

displaying the adjusted UV picture in the UV interval on a graphic user page;

in response to the size setting operation aiming at the adjusted UV graph in the UV interval, updating the size of the adjusted UV graph corresponding to the size setting operation in the UV interval;

In the embodiment of the present application, the size setting operation is not limited, and may be that a user selects an adjusted UV map of one sub-model, and performs an amplification operation on the selected adjusted UV map, thereby updating the size of the selected adjusted UV map.

For example, as shown in the size setting diagram of the adjusted UV map shown in fig. 5, the adjusted UV map 402 corresponding to the decoration sub-model on the forearm in the subpage 401 of fig. 4 may be enlarged to form an adjusted UV map 502 in the subpage 501 of fig. 5.

In the embodiment of the application, after the whole size of the adjusted UV map of one sub-model is changed, the model map corresponding to the sub-model generated according to the adjusted UV map after the sub-model is changed may also be correspondingly reduced or increased, and since the size of the sub-model is not changed, the accuracy of the model map may be changed when the sub-model is rendered on the sub-model by the changed model map. For example, if the UV map becomes smaller after adjustment of the submodel, the model map corresponding to the submodel also becomes smaller, and when the model map corresponding to the submodel is rendered on the submodel in the merged model, the accuracy of the model map corresponding to the submodel is low.

And 203, arranging the positions of the adjusted UV pictures in the UV interval, and acquiring target UV pictures formed by the arranged adjusted UV pictures, wherein the lengths and the widths of the target UV pictures are equal.

In the embodiment of the application, when the positions of the adjusted UV images are arranged in the UV interval, the positions may be arranged by using a container algorithm, at this time, a reference rectangle needs to be selected to replace the adjusted UV images for arrangement, and since it is necessary to set the target UV images formed after arrangement to be square, that is, each adjusted UV image is located in one large square, after the reference rectangle is changed into the adjusted UV images, in order to avoid that the target UV images formed by the adjusted UV images exceed the arrangement reference images formed by the reference rectangle, the size of the reference rectangle may be set larger than the adjusted UV images, and the reference rectangle may include the adjusted UV images. In addition, in order to reduce the invalid UV area in the UV section except for the target UV map, the area of the reference rectangle may be set to be as close as possible to the area of the adjusted UV map, that is, the reference rectangle may be set to be the smallest rectangle including the adjusted UV map, in this case, "arrange the positions of the adjusted UV maps in the UV section, and obtain the target UV map formed by the arranged adjusted UV maps" in step 203 may be:

arranging all reference rectangles to form arrangement reference pictures with the same length and width;

In the embodiment of the present application, after the arrangement reference map formed by the reference rectangles is obtained, the adjusted UV maps corresponding to the reference rectangles may be arranged according to the relative position relationship of the reference rectangles in the arrangement reference map, so as to generate the target UV map.

In this embodiment of the present application, the reference rectangles may be arranged by using a container algorithm, and specifically, the step of "arranging the reference rectangles to form the arrangement reference figures with the same length and width" may be:

arranging all reference rectangles side by side in the horizontal direction according to the sequence of the heights of the rectangles from high to low, wherein one side of two adjacent reference rectangles on the left and the right are overlapped in the arranging process, and the height which can be occupied by the rectangles formed after the reference rectangles are arranged is the preset highest height;

if the sum of the heights of at least two reference rectangles in the reference rectangles does not exceed the preset highest height, the reference rectangles with the heights not exceeding the preset highest height are arranged in parallel up and down in the arranged reference rectangles to form an arrangement candidate graph;

if the length and the width of the arrangement candidate graph are the same, taking the arrangement candidate graph as an arrangement reference graph;

and if the length and the width of the arrangement candidate graphs are different, increasing the preset highest height, returning to execute the step of arranging the reference rectangles with the height sum not exceeding the preset highest height in the arranged reference rectangles up and down in parallel to form the arrangement candidate graphs if the height sum of at least two reference rectangles in the reference rectangles does not exceed the preset highest height.

For example, as shown in the arrangement candidate map forming diagram of fig. 6, if there are 5 adjusted UV maps corresponding to the sub-models, the reference rectangles corresponding to the 5 adjusted UV maps are acquired as the reference rectangle 601, the reference rectangle 602, the reference rectangle 603, the reference rectangle 604, and the reference rectangle 605, respectively, and the reference rectangle 602, the reference rectangle 603, and the reference rectangle 604, which are gradually reduced in height, are arranged in order from the highest-height rectangle (the reference rectangle 601), and the height that can be occupied by the rectangles formed after the arrangement of the reference rectangles (i.e., the preset highest height) can be determined as the height of the reference rectangle 601, and when the rectangles are arranged from the left to the right, the sum of the heights of the reference rectangle 605 and the reference rectangle 604 is not seen to exceed the height of the reference rectangle 601, the reference rectangle 605 can be placed below the reference rectangle 604, and the arrangement candidate map 606 can be formed.

For another example, as shown in another forming diagram of the arrangement candidate diagram shown in fig. 7, since the length and width of the arrangement candidate diagram 606 are different, the preset maximum height is increased until the preset maximum height reaches the height shown in fig. 7, it is determined that the sum of the heights of the reference rectangle 601 and the reference rectangle 603 does not exceed the preset maximum height, and the sum of the heights of the reference rectangle 602 and the reference rectangle 604 does not exceed the preset maximum height, so that the reference rectangle 601, the reference rectangle 602, the reference rectangle 603, the reference rectangle 604, and the reference rectangle 605 form the arrangement candidate diagram 701.

And step 204, generating a model map corresponding to the merged model based on the target UV map.

In the embodiment of the present application, the color of the model map set in the sub-models may be obtained, and after the target UV map is generated, the color of the model map corresponding to the merged model is determined according to the color of the model map corresponding to each sub-model.

In this embodiment of the application, before the step 204 "generating a model map corresponding to the merged model based on the target UV map", the method further includes: acquiring an initial mapping type corresponding to each sub-model; displaying the initial map type of each sub-model on a graphical user interface; in response to a modification operation on the initial map type in the graphical user interface, determining a modified map type; and determining the modified map type corresponding to each sub-model according to the modified map type and the corresponding relation between each sub-model and the initial map type. After determining the modified map type corresponding to each sub-model, the model map corresponding to the merged model may be generated according to the modified map type corresponding to each sub-model, that is, the "generating the model map corresponding to the merged model based on the target UV map" in step 204 may be: and generating a model map corresponding to the combined model based on the target UV map and the modified map types corresponding to the sub models.

For example, the initial map types of all the submodels may include a normal map, a highlight map, and a base map, identifiers of the normal map, the highlight map, and the base map are displayed on a graphical user interface, a map type required to be generated by each submodel when the submodel is generated is obtained, and if the identifier of the base map is deleted by a user, the submodel required to generate the base map avoids generating the base map when the model map is generated.

In this embodiment of the present application, a UV interval and a target UV map within the UV interval may be displayed in a graphical user interface, where a background of the UV interval in the modeling application software generally consists of black and white squares, and in order to enable a user to clearly identify the target UV map within the UV interval, the background within the UV interval may be modified, specifically after "generating a model map corresponding to the merged model based on the target UV map" in step 204, the method may include:

displaying a target UV map within the UV interval on the graphical user interface;

determining a background area in the UV interval except the target UV image;

and in response to the color modification operation on the background area in the graphical user interface, updating the color of the background area corresponding to the color modification operation.

All the above technical solutions can be combined arbitrarily to form the optional embodiments of the present application, and are not described herein again.

According to the map processing method of the three-dimensional model, when a plurality of submodels are combined into a combined model, the UV maps obtained by expanding the submodels before combination do not need to be disassembled, the UV maps obtained by expanding the submodels can be integrally arranged in the UV interval, and then the model maps of the combined model are obtained according to the arranged target UV maps.

Referring to fig. 8, fig. 8 is another schematic flow chart of a three-dimensional model mapping processing method according to an embodiment of the present disclosure. The specific process of the method can be as follows:

step 801, performing UV expansion on a plurality of submodels forming the combined model to obtain an initial expansion diagram in a UV interval.

And step 802, setting the size of the initial development in the UV interval to obtain a UV map.

Specifically, the dimension of the initial development diagram is set to obtain the UV diagram in two ways, one way is to set the length and the width of the initial development diagram to be the same, and the length and the width of the initial development diagram to be the same as the length and the width of the UV interval to obtain the UV diagram, and the other way is to set the length and the width of the initial development diagram according to the length-width ratio of the sub-model mapping corresponding to the initial development diagram and the length and the width of the UV interval to obtain the UV diagram, wherein the length and the width of the UV diagram do not exceed the length and the width of the UV interval.

And 803, adjusting the size of each UV picture according to the size of each sub-model when the merged model is formed to form the adjusted UV picture.

And step 804, acquiring a reference rectangle of each adjusted UV picture, wherein the reference rectangle is the minimum rectangle containing the adjusted UV picture.

And 805, arranging the reference rectangles side by side in the horizontal direction according to the sequence of the heights of the rectangles from high to low, wherein one side of two adjacent reference rectangles on the left and right is overlapped in the arrangement process, and the height which can be occupied by the rectangles formed after the reference rectangles are arranged is the preset highest height.

And 806, if the sum of the heights of at least two reference rectangles in the reference rectangles does not exceed the preset highest height, arranging the reference rectangles with the height sum not exceeding the preset highest height in the arranged reference rectangles up and down in parallel to form an arrangement candidate graph.

In step 807, if the alignment candidate figures have the same length and width, the alignment formed from the alignment candidate figures as reference rectangles is referred to.

And 808, if the length and the width of the arrangement candidate graphs are different, increasing the preset highest height, returning to execute the step of arranging the reference rectangles with the height sum not exceeding the preset highest height in the arranged reference rectangles up and down in parallel to form the arrangement candidate graphs if the height sum of at least two reference rectangles in the reference rectangles does not exceed the preset highest height.

And step 809, arranging the positions of the adjusted UV pictures in the UV interval according to the relative position relation of the reference rectangles in the arrangement reference picture, and acquiring the target UV pictures formed by the arranged adjusted UV pictures.

And 810, generating a model map corresponding to the merged model based on the target UV map.

The model maps corresponding to the sub-models can be generated according to the map types corresponding to the sub-models, and the model maps corresponding to the sub-models form the model map of the merged model.

In order to better implement the mapping processing method of the three-dimensional model according to the embodiments of the present application, the embodiments of the present application further provide a mapping processing apparatus of the three-dimensional model. Referring to fig. 9, fig. 9 is a schematic structural diagram of a map processing apparatus for a three-dimensional model according to an embodiment of the present disclosure. The map processing apparatus of the three-dimensional model may include an acquisition unit 901, an adjustment unit 902, an arrangement unit 903, and a generation unit 904.

The acquiring unit 901 is configured to perform UV expansion on a plurality of submodels forming the combined model to obtain a UV map in a UV interval;

an adjusting unit 902, configured to adjust the size of each UV map according to the size of each sub-model when the merged model is formed, so as to form an adjusted UV map;

the arranging unit 903 is configured to arrange the positions of the adjusted UV images in the UV interval, and obtain target UV images formed by the arranged adjusted UV images, where the target UV images have the same length and width;

and a generating unit 904, configured to generate a model map corresponding to the merged model based on the target UV map.

Optionally, the adjusting unit 902 is further configured to:

displaying the adjusted UV picture in the UV interval on a graphic user page;

Optionally, the arranging unit 903 is further configured to:

arranging the reference rectangles to form arrangement reference figures with the same length and width;

Optionally, the arranging unit 903 is further configured to:

if the length and the width of the arrangement candidate graphs are the same, taking the arrangement candidate graphs as the arrangement reference graphs;

Optionally, the obtaining unit 901 is further configured to:

acquiring each sub-model;

Optionally, the obtaining unit 901 is further configured to:

Optionally, the generating unit 904 is further configured to:

acquiring an initial mapping type corresponding to each sub-model;

in response to a modification operation on the initial map type in the graphical user interface, determining a modified map type;

determining the modified map type corresponding to each sub-model according to the modified map type and the corresponding relation between each sub-model and the initial map type;

and generating a model map corresponding to the combined model based on the target UV map and the modified map types corresponding to the sub models.

Optionally, the arranging unit 903 is further configured to:

determining a background area in the UV interval except the target UV image;

Optionally, the adjusting unit 902 is further configured to:

The mapping processing device for the three-dimensional model, provided by the embodiment of the application, obtains UV maps in UV intervals by performing UV expansion on a plurality of submodels forming a merged model through the obtaining unit 901, then, adjusts the size of each UV map through the adjusting unit 902 according to the size of each submodel forming the merged model, forms adjusted UV maps, then, arranges the position of each adjusted UV map in the UV intervals through the arranging unit 903, obtains target UV maps formed by each adjusted UV map after arrangement, wherein the length and the width of each target UV map are equal, and finally, generates model mappings corresponding to the merged model based on the target UV maps through the generating unit 904. The method has the advantages that the UV graph obtained by unfolding the submodels before combination does not need to be disassembled, the corresponding UV graph of each submodel after UV unfolding does not change, so that the mapping generated by the submodels before combination can be restored to the details of the combined model to a greater extent, and the accuracy of the mapping on the combined model is maintained.

Correspondingly, the embodiment of the application also provides a computer device, which can be a terminal, and the terminal can be a terminal device such as a smart phone, a tablet computer, a notebook computer, a touch screen, a game machine, a personal computer, a personal digital assistant and the like. As shown in fig. 10, fig. 10 is a schematic structural diagram of a computer device according to an embodiment of the present application. The computer device 1000 includes a processor 1001 with one or more processing cores, a memory 1002 with one or more computer-readable storage media, and a computer program stored on the memory 1002 and executable on the processor. The processor 1001 is electrically connected to the memory 1002. Those skilled in the art will appreciate that the computer device configurations illustrated in the figures are not meant to be limiting of computer devices and may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components.

The processor 1001 is a control center of the computer apparatus 1000, connects various parts of the entire computer apparatus 1000 using various interfaces and lines, performs various functions of the computer apparatus 1000 and processes data by running or loading software programs and/or modules stored in the memory 1002, and calling data stored in the memory 1002, thereby performing overall monitoring of the computer apparatus 1000.

In this embodiment of the application, the processor 1001 in the computer device 1000 loads instructions corresponding to processes of one or more applications into the memory 1002, and the processor 1001 runs the applications stored in the memory 1002 according to the following steps, so as to implement various functions:

arranging the positions of the adjusted UV pictures in a UV interval, and acquiring target UV pictures formed by the arranged adjusted UV pictures, wherein the lengths and the widths of the target UV pictures are equal;

and generating a model map corresponding to the combined model based on the target UV map.

The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.

Optionally, as shown in fig. 10, the computer device 1000 further includes: touch-sensitive display screen 1003, radio frequency circuit 1004, audio circuit 1005, input unit 1006 and power 1007. The processor 1001 is electrically connected to the touch display screen 1003, the radio frequency circuit 1004, the audio circuit 1005, the input unit 1006, and the power supply 1007, respectively. Those skilled in the art will appreciate that the computer device architecture illustrated in FIG. 10 is not intended to be limiting of computer devices and may include more or less components than those illustrated, or combinations of certain components, or different arrangements of components.

The touch display screen 1003 can be used for displaying a graphical user interface and receiving an operation instruction generated by a user acting on the graphical user interface. The touch display screen 1003 may include a display panel and a touch panel. The display panel may be used, among other things, to display information entered by or provided to a user and various graphical user interfaces of the computer device, which may be made up of graphics, text, icons, video, and any combination thereof. Alternatively, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. The touch panel can be used for collecting touch operations of a user on or near the touch panel (such as operations of the user on or near the touch panel by cashing a finger, a stylus pen and any other suitable object or accessory), and generating corresponding operation instructions, and the operation instructions execute corresponding programs. Alternatively, the touch panel may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1001, and can receive and execute commands sent by the processor 1001. The touch panel may cover the display panel, and when the touch panel detects a touch operation thereon or nearby, the touch panel transmits the touch operation to the processor 1001 to determine the type of the touch event, and then the processor 1001 provides a corresponding visual output on the display panel according to the type of the touch event. In the embodiment of the present application, the touch panel and the display panel may be integrated into the touch display screen 1003 to implement input and output functions. However, in some embodiments, the touch panel and the touch panel can be implemented as two separate components to perform the input and output functions. That is, the touch display 1003 may also be used as a part of the input unit 1006 to implement an input function.

In this embodiment of the application, the processor 1001 executes the three-dimensional model making application to generate a graphical user interface on the touch display screen 1003, the graphical user interface may display sub models to be merged, merged models after merging the sub models, adjusted UV maps corresponding to the sub models, target UV maps formed after arranging the adjusted UV maps, and the like, and a user may perform an interactive operation in the graphical user interface.

The radio frequency circuit 1004 may be used for transceiving radio frequency signals to establish wireless communication with a network device or other computer device through wireless communication, and for transceiving signals with the network device or other computer device.

Audio circuitry 1005 may be used to provide an audio interface between a user and a computer device through speakers and microphones. The audio circuit 1005 may transmit the electrical signal converted from the received audio data to a speaker, and convert the electrical signal into a sound signal for output; on the other hand, the microphone converts a collected sound signal into an electric signal, converts the electric signal into audio data after being received by the audio circuit 1005, and outputs the audio data to the processor 1001 for processing, for example, to another computer device via the radio frequency circuit 1004, or outputs the audio data to the memory 1002 for further processing. The audio circuitry 1005 may also include an earbud jack to provide communication of peripheral headphones with the computer device.

The input unit 1006 may be used to receive input numbers, character information, or user characteristic information (e.g., fingerprint, iris, facial information, etc.), and generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control.

The power supply 1007 is used to power the various components of the computer device 1000. Optionally, the power supply 1007 may be logically connected to the processor 1001 through a power management system, so as to implement functions of managing charging, discharging, power consumption management, and the like through the power management system. The power supply 1007 may also include any component including one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Although not shown in fig. 10, the computer device 1000 may further include a camera, a sensor, a wireless fidelity module, a bluetooth module, etc., which are not described in detail herein.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

As can be seen from the above, in the computer device provided in this embodiment, when a plurality of submodels are merged into a merged model, the UV maps obtained by expanding the submodels before merging do not need to be disassembled, the UV maps obtained by expanding each submodel can be integrally arranged in the UV interval, and then the model maps of the merged model are obtained according to the target UV maps after arrangement.

It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.

To this end, the present application provides a computer-readable storage medium, in which a plurality of computer programs are stored, and the computer programs can be loaded by a processor to execute the steps in any one of the methods for processing a map of a three-dimensional model provided in the embodiments of the present application. For example, the computer program may perform the steps of:

arranging the positions of the adjusted UV pictures in a UV interval, and acquiring target UV pictures formed by the arranged adjusted UV pictures, wherein the target UV pictures are equal in length and width;

Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.

Since the computer program stored in the storage medium can execute the steps in any three-dimensional model mapping processing method provided in the embodiments of the present application, beneficial effects that can be achieved by any three-dimensional model mapping processing method provided in the embodiments of the present application can be achieved, which are detailed in the foregoing embodiments and will not be described herein again.

The method, the apparatus, the computer device and the storage medium for processing the map of the three-dimensional model provided in the embodiments of the present application are described in detail, and a specific example is applied to illustrate the principle and the implementation of the present invention, and the description of the embodiments is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A map processing method for a three-dimensional model is characterized by comprising the following steps:

2. The method of claim 1, wherein the resizing each of the UV maps according to the size of each of the sub-models in composing the merged model, and after forming the resized UV maps, further comprising:

displaying the adjusted UV map in the UV interval on a graphical user page;

3. The method according to any one of claims 1 to 2, wherein the arranging the positions of the adjusted UV maps in the UV region to obtain the target UV map formed by the arranged adjusted UV maps comprises:

4. The method of claim 3, wherein said arranging each of said reference rectangles to form an arrangement reference figure having a same length and width comprises:

5. The method of claim 1, wherein the UV unfolding the plurality of submodels that make up the merged model to obtain a UV map in a UV interval comprises:

acquiring each submodel;

6. The method of claim 5, wherein the setting the size of the initial unfolded graph in the UV interval to obtain the UV graph comprises:

7. The method according to claim 1, wherein before generating the model map corresponding to the merged model based on the target UV map, further comprising:

obtaining an initial mapping type corresponding to each sub-model;

the generating of the model map corresponding to the merged model based on the target UV map comprises:

8. The method according to claim 1, wherein the arranging the position of each adjusted UV map in the UV region, and after obtaining the target UV map formed by each arranged adjusted UV map, further comprises:

determining a background area in the UV interval except the target UV image;

9. The method of claim 1, wherein the resizing each of the UV maps according to the size of each of the sub-models that compose the merged model to form a resized UV map comprises:

10. A map processing apparatus for a three-dimensional model, comprising:

11. A computer device, comprising:

a memory for storing a computer program;

a processor for implementing the steps in the method of map processing of a three-dimensional model according to any of claims 1 to 9 when executing said computer program.

12. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for processing a map of a three-dimensional model according to any one of claims 1 to 9.