KR20190017294A - Method and apparatus for editing three dimensional shading data - Google Patents

Abstract

Disclosed is a method for editing three-dimensional image data which can increase convenience of a user. The method for editing three-dimensional image data comprises the steps of: obtaining a plurality of three-dimensional image data respectively including a plurality of rendering target elements from a server; generating polygon data on the plurality of rendering target elements by using a preset of the plurality of rendering target elements; coupling geometric information of the plurality of rendering target elements to the polygon data; and generating a three-dimensional image sequence by rendering the coupled data.

Description

METHOD AND APPARATUS FOR EDITING THREE DIMENSIONAL SHADING DATA BACKGROUND OF THE INVENTION [0001]

The present invention relates to a method and apparatus for editing three-dimensional image data, and more particularly, to a method for enhancing convenience in editing three-dimensional shading data using a plurality of users or a plurality of programs.

When creating a three-dimensional image sequence such as an animation, a three-dimensional image sequence can be created by performing modeling on objects in the three-dimensional image and rendering on the modeled objects.

Here, modeling refers to an operation of creating a three-dimensional model in a virtual space inside a computer using computer graphics, and is mainly generated and stored by a program such as a three-dimensional graphic tool.

Rendering refers to the process of creating an image from a model modeled using a computer program. In the rendering, an array of a figure representing a virtual scene, a viewpoint, a texture mapping, illumination, and shading data may be reflected. That is, rendering means a process of editing a three-dimensional image to which a modeling is applied so as to have a texture similar to that of an actual object.

Here, the shading data means data generated by a processing technique of giving shading to a stereoscopic surface inputted to a computer. The shading data includes information on the applied shade by calculating distances, angles, colors, brightness, and the like from the light sources on each side to give a three-dimensional effect to the wireframe model.

The above modeling and rendering can be performed collectively in one editing device or one editing program. However, it is necessary to use a plurality of editing apparatuses or a plurality of editing programs as the sequence of three-dimensional images becomes more complicated and the editing process and the editing manpower increase accordingly.

Conventionally, when data is generated by another program, such as when modeling is performed using a specific program and rendering is performed by using another program, the difference between the programs causes the user to directly adjust rendering options and rendering settings I had to. Thus, there is a need to automate adjustments to rendering options and rendering settings, and to facilitate the sharing of editing files to increase the efficiency of image editing.

The present invention provides a method for automating a process of setting a shading option to shorten a time required for a rendering process and increase convenience for a user.

According to an embodiment of the present invention, there is provided a method of editing three-dimensional image data, comprising: obtaining a plurality of three-dimensional image data each including a plurality of rendering object elements from a server; Generating polygon data for the plurality of rendering target elements using a preset of the plurality of rendering target elements; Combining geometry information of the plurality of rendering subject elements with the polygon data; And rendering the combined data to generate a three-dimensional image sequence.

Wherein the plurality of three-dimensional image data is data stored in the server through a program that has been modeled, and includes a plurality of distance-specific data generated by different virtual camera distances for each of the plurality of rendering target elements can do.

The preset may include vertex information for the plurality of rendering target elements, and the geometry information may include information on a surface of the plurality of rendering target elements and information on an outline.

The generated polygon data may be free of color and rendering information for the plurality of rendering target elements.

The combining may selectively combine the geometry information of the plurality of rendering subject elements and the polygon data according to a preset reference.

According to an embodiment of the present invention, it is possible to automate the shading option setting process, thereby shortening the time required in the rendering process and increasing the user's convenience.

1 is a block diagram illustrating a three-dimensional image data editing apparatus according to an embodiment of the present invention.
2 is a diagram illustrating a plurality of three-dimensional images and servers according to an embodiment of the present invention.
3 is a flowchart illustrating a method of editing three-dimensional image data according to an exemplary embodiment of the present invention.
4 is a diagram illustrating an example of editing image data according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a three-dimensional image data editing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a three-dimensional image data editing apparatus 101 and a server 102 are shown. The three-dimensional image data editing apparatus 101 is an apparatus for editing three-dimensional image data according to an embodiment of the present invention. The three-dimensional image data editing apparatus 101 may include a processor, and the processor of the three-dimensional image data editing apparatus 101 may perform a method of editing three-dimensional image data.

Here, the processor may be a central processing unit (CPU) or a semiconductor device that performs processing for instructions stored in memory and / or storage. Memory and storage may include volatile or nonvolatile storage media of various types. For example, the memory may include a read only memory (ROM) and a random access memory (RAM).

The three-dimensional image data means data in which an image representing an object is expressed in a three-dimensional form. The three-dimensional image data includes a three-dimensional object or a three-dimensional model generated through a modeling process, and also includes three-dimensional shading data.

The three-dimensional image data editing apparatus 101 can simplify a compatible process between a plurality of image editing programs through a method of editing three-dimensional image data according to an embodiment of the present invention. Here, the plurality of image editing programs refers to programs such as MAYA, 3Ds Max, Mudbox, Alias, Blender, Cinema 4D, Houndini, and LightWave 3D.

According to an embodiment of the present invention, the three-dimensional image data editing apparatus 101 automatically processes a setting process that has been manually performed when moving data from one program to another in an existing image editing process The convenience of the user can be increased. For example, the image data editing apparatus 101 may perform 3D modeling through MAYA to generate three-dimensional image data, and may import and render three-dimensional image data generated through 3Ds Max.

The three-dimensional image data editing apparatus 101 can transmit data to the server 102 or receive data from the server 102. [ For example, the three-dimensional image data editing apparatus 101 can perform modeling on key animation using a specific program. Then, the 3D image data on which modeling has been performed can be transmitted to the server 102.

Then, the three-dimensional image data editing apparatuses 101 used by other users can acquire the three-dimensional image data from the server 102 and edit the three-dimensional image data using a specific program or a program other than the specific program . When the three-dimensional image data editing apparatus 101 edits the three-dimensional image data using another program, the method according to one embodiment of the present invention can be used for the modeled three-dimensional image data.

Specifically, the three-dimensional image data editing apparatus 101 can acquire a plurality of three-dimensional image data each including a plurality of rendering object elements from the server 102. Here, each of the rendering target elements refers to elements grouped according to a similar characteristic or an arranged position in the three-dimensional image data. For example, the body of the character of the animation, the leg, the arm, and the face may correspond to a plurality of rendering target elements, respectively.

The three-dimensional image data editing apparatus 101 can import a preset of a plurality of rendering object elements from a plurality of three-dimensional image data. The three-dimensional image data editing apparatus 101 can generate polygon data using the imported preset. At this time, since the polygon data is generated using only a preset such as the vertex information, it may not include information on color and rendering. The three-dimensional image data editing apparatus 101 can combine geometry information of a plurality of rendering target elements with polygon data. Then, the combined data can be rendered to generate a three-dimensional image sequence.

2 is a diagram illustrating a plurality of three-dimensional images and servers according to an embodiment of the present invention.

2, a plurality of three-dimensional image data editing apparatus 101, a server 102, a first group 201 and a second group 202 are shown. Here, the first group and the second group mean groups for editing three-dimensional image data through different programs. For example, the first group may use the first program, and the second group may use the second program. However, this is merely an example for explaining the present invention, and the programs used by the first group and the second group may be the same. Three pieces of three-dimensional image data editing apparatus 201 are shown in each of the first group and the second group, but this is only an example, and the number of image data editing apparatuses 201 belonging to each group is not limited.

The three-dimensional image data editing apparatuses 101 of the first group 201 can use the first program to perform modeling of a three-dimensional image and generate three-dimensional image data. Specifically, in the production of the animation, the three-dimensional image data editing apparatuses 101 of the first group 201 can perform modeling on the key animation. Here, the key animation means a change in the shape of modeling over time.

The three-dimensional image data editing apparatuses 101 may store the shading information of the modeling as a preset. Herein, the shading information means information on the vignetting, reflection, and projection of the light in the three-dimensional image, and the shading information may include the vertex information, which is information on the vertexes of the three-dimensional image. In other words, the shading information means surface color information including vertex information. The three-dimensional image data editing apparatuses 101 of the first group 201 can classify the elements to be rendered in the three-dimensional image data and store them as three-dimensional image data. At this time, the image data editing apparatuses 101 may store the three-dimensional image data in the internal storage or the server 102. [

Specifically, the three-dimensional image data editing apparatuses 101 of the first group 201 can generate a plurality of three-dimensional image data by changing the position of a virtual camera with respect to the three-dimensional image. For example, the three-dimensional image data editing apparatuses 101 may generate a plurality of three-dimensional image data in a form photographed at four distances by changing the distance of a virtual camera with respect to the three-dimensional image.

In addition, the three-dimensional image data editing apparatuses 101 may store three-dimensional image data including information on the surface and the outline of the three-dimensional image. Here, the surface information is information indicating the color, shade, texture, etc. of the surface. The outline information is information indicating the thickness, color, and texture of the line. That is, the three-dimensional image data includes a plurality of rendering target elements, and includes geometry information representing information about a surface and an outline of a plurality of rendering target elements, And a plurality of distance-specific data generated for each distance. Since the information of the outline changes in proportion to the distance between the elements to be rendered and the camera, the three-dimensional image data editing apparatus 101 utilizes the data for each distance. The three-dimensional image data editing apparatuses 101 of the first group 201 are connected to the server 102 so that other three-dimensional image data editing apparatuses 101, such as the second group 202, can use the three- You can upload dimension image data.

The three-dimensional image data editing apparatuses 101 can acquire three-dimensional image data from the server 102 through the second program. Then, the three-dimensional image data editing apparatuses 101 of the second group 201 can render a three-dimensional image using the second program, and can generate an image sequence. Here, the image sequence refers to a scene in which a three-dimensional image is continuous. For example, the image sequence generated according to one embodiment of the present invention may be in the form of an image used for animation.

Specifically, the three-dimensional image data editing apparatuses 101 of the second group 201 can import a part of the three-dimensional image data from the server 102 to generate polygon data. For example, the three-dimensional image data editing apparatus 101 can import only vertex information from the server 102 and generate polygon data using the vertex information. Here, since the polygon data is generated using only the vertex information, there may be no color and rendering information for the three-dimensional image.

The three-dimensional image data editing apparatuses 101 can obtain a list of a plurality of elements to be rendered and distance data from the server 102. The three-dimensional image data editing apparatuses 101 may display a list to be confirmed by the user. The three-dimensional image data editing apparatuses 101 may use a plurality of rendering object elements selected by the user and data for each distance. Alternatively, the three-dimensional image data editing apparatus 101 can select data for a plurality of rendering object elements and distances according to a preset reference. Here, the preset reference includes the name of the file or the relative distance of the virtual camera in the data by distance.

After the polygon data is generated, the three-dimensional image data editing apparatuses 101 of the second group 201 can acquire the geometry information from the server 102. The three-dimensional image data editing apparatuses 101 of the second group 201 may combine the geometry information with the generated polygon data to add color and rendering information to the polygon data. Here, the geometry information includes surface and outline information for a three-dimensional image. Then, the three-dimensional image data editing apparatuses 101 of the second group 201 can render the combined data to generate an image sequence.

The three-dimensional image data editing apparatuses 101 of the second group 201 can perform all of the above-described processes through the second program. Specifically, the three-dimensional image data editing apparatuses 101 of the second group 201 can perform a method of editing three-dimensional image data according to an embodiment of the present invention using a plug-in applied to the second program have.

3 is a flowchart illustrating a method of editing three-dimensional image data according to an exemplary embodiment of the present invention.

In step 301, the three-dimensional image data editing apparatus 101 can acquire a plurality of three-dimensional image data from the server. Here, the plurality of three-dimensional image data may correspond to each of the plurality of rendering target elements for the three-dimensional image. The three-dimensional image data may be data generated by the three-dimensional image data editing apparatuses 101 of the first group 201 described in FIG. The three-dimensional image data editing apparatus 101 can effectively use the storage space by deleting unnecessary data for performing the three-dimensional image editing method according to an embodiment of the present invention. Here, the unnecessary data is data corresponding to the preset which is not needed after the polygon data is generated. After the polygon data is generated, the three-dimensional image data editing apparatus 101 deletes the original containing the corresponding data. The three-dimensional image data editing apparatus 101 can load only the data selected by the user, such as the texture and the outline, on the editing screen.

In step 302, the three-dimensional image data editing apparatus 101 can generate polygon data for a plurality of rendering target elements using the preset. More specifically, the three-dimensional image data editing apparatus 101 can generate polygon data using only a part of the three-dimensional image data. That is, the three-dimensional image data editing apparatus 101 can generate polygon data using only data of vertices such as vertex information. Here, the generated polygon data is data in which a plurality of polygons are connected using vertex information, and does not include color and rendering information for a three-dimensional image.

In step 303, the three-dimensional image data editing device 101 can combine geometry information of a plurality of rendering object elements with polygon data. Specifically, the three-dimensional image data editing apparatus 101 can read the surface and outline information of the three-dimensional image data and combine them with the polygon data. Then, the color and rendering information are reflected in the polygon data.

In step 304, the three-dimensional image data editing device 101 may render the combined data to generate an image sequence. That is, the three-dimensional image data editing apparatus 101 can render the combined data using the rendering information of the combined data. Then, the three-dimensional image data editing device 101 can generate an image sequence by connecting the combined data for a continuous time. That is, the three-dimensional image data editing apparatus 101 may render combined data to generate an image including a specific number of frames per hour.

4 is a diagram illustrating an example of editing image data according to an embodiment of the present invention.

Referring to FIG. 4, a server 102 and three-dimensional image data editing apparatuses 401 and 402 are shown. Here, the three-dimensional image data editing device 401 is included in the first group 201, and the three-dimensional image data editing device 402 is included in the second group 202. [ That is, the three-dimensional image data editing device 401 may be a device for generating three-dimensional image data using the first program. The three-dimensional image data editing device 402 may be a device for editing and rendering three-dimensional image data using the second program. Hereinafter, each of the three-dimensional image data editing apparatuses 401 and 402 belonging to the first group 201 or the second group 202 will be described with reference numerals.

In step 403, the three-dimensional image data editing apparatus 401 can perform modeling on the three-dimensional image. For example, the three-dimensional image data editing device 401 can generate a mathematical model that can be reproduced in a virtual three-dimensional space with respect to the three-dimensional image using the first program. Then, the three-dimensional image data editing apparatus 401 can generate three-dimensional image data through modeling of the three-dimensional image. At this time, the three-dimensional image data editing apparatus 401 can generate a plurality of distance-specific data by changing the distance of the virtual camera with respect to the three-dimensional image. For example, the distance-based data may be four levels of data generated according to the distance of the four virtual cameras. The three-dimensional image data editing device 401 can generate three-dimensional image data including information on the surface of the three-dimensional image and information on the outline.

In step 404, the three-dimensional image data editing device 401 can classify the rendering target elements in the three-dimensional image data. The three-dimensional image data editing device 401 can generate three-dimensional image data corresponding to each of the rendering target elements. For example, the three-dimensional image data editing device 401 can generate three-dimensional image data in the form of a file having a different name corresponding to each of the rendering elements.

In step 405, the three-dimensional image data editing device 401 can transmit the generated three-dimensional image data to the server 102. [ Accordingly, a plurality of three-dimensional image data editing apparatuses 401 and 402 can access the three-dimensional image data file, and collaboration among a plurality of users is facilitated.

In step 406, the server 102 may send the three-dimensional image data to the three-dimensional image data editing device 402. [ That is, the three-dimensional image data editing device 402 can obtain three-dimensional image data from the server 102. At this time, the three-dimensional image data editing device 402 can delete unnecessary data in the rendering process in the three-dimensional image data. Then, the three-dimensional image data editing device 402 can link data such as setting options or rendering setting values from the three-dimensional image data to the selected object. Here, the selected object means an object selected by a user or a preset reference.

Here, the setting option or rendering setting value includes listing and selection of each file having a three-dimensional outline attribute value of all characters and pops in the three-dimensional image data. The setting options or the rendering setting values include data of the distance of the files to which the outline attribute values are differently applied according to the camera distance values in each of the selected files. Here, the distance-specific data includes a full shot, a knee shot, a bust shot, a close-up shot, a long shot, and an extreme long shot long shot), depending on various distances and positions between the camera and the object. Each distance-specific data is generated by reflecting the characteristics of the object in the three-dimensional image data depending on the position and distance of the camera.

The setting options and the rendering setting values include data to which outline size values are applied differently to the objects in the three-dimensional image, and the three-dimensional image data editing apparatus 402 can display the list. For example, if a dog is selected in the three-dimensional image data and a bust shot is selected, the three-dimensional image data editing device 402 may display outline size values for eyebrows, eyes, mouth, face, and torso .

The three-dimensional image data editing device 402 may provide an editing function for the displayed outline size value. For example, a value between 0.1 and 1 can be applied to the entire outline size of eyebrows, eyes, mouth, face, and torso to increase or decrease the size. For example, when the three-dimensional image data editing apparatus 402 applies 0.5 and an increase, the total size is increased by 50%. Conversely, they can be reduced in a batch.

In step 407, the three-dimensional image data editing device 402 can generate polygon data using the three-dimensional image data. Specifically, the three-dimensional image data editing device 402 can import vertex information for each of the rendering target elements from the three-dimensional image data. Then, the three-dimensional image data editing device 402 can generate polygon data using the vertex information.

In step 408, the three-dimensional image data editing device 402 may combine the geometry information with the polygon data. That is, the three-dimensional image data editing device 402 can combine information on the surface and information on the outline on the polygon data lacking color and rendering information. Then, the three-dimensional image data editing apparatus 402 completes preparations before the rendering process.

At step 409, the three-dimensional image data editing device 402 may render the combined data to generate a three-dimensional image sequence. Specifically, the three-dimensional image data editing device 402 can render the combined data by applying rendering setting values. The three-dimensional image data editing device 402 can generate an image sequence by combining the rendered data in a time sequence.

A processor may be a central processing unit (CPU) or a semiconductor device that performs processing on instructions stored in memory and / or storage. Memory and storage may include volatile or nonvolatile storage media of various types. For example, the memory may include a read only memory (ROM) and a random access memory (RAM).

Meanwhile, the method according to the present invention may be embodied as a program that can be executed by a computer, and may be embodied as various recording media such as a magnetic storage medium, an optical reading medium, and a digital storage medium.

Implementations of the various techniques described herein may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or combinations thereof. Implementations may be implemented in a computer program product, such as an information carrier, e.g., a machine readable storage device, such as a computer readable storage medium, for example, for processing by a data processing apparatus, Apparatus (computer readable medium) or as a computer program tangibly embodied in a propagation signal. A computer program, such as the computer program (s) described above, may be written in any form of programming language, including compiled or interpreted languages, and may be stored as a stand-alone program or in a module, component, subroutine, As other units suitable for use in the present invention. A computer program may be deployed to be processed on one computer or multiple computers at one site or distributed across multiple sites and interconnected by a communications network.

Processors suitable for processing a computer program include, by way of example, both general purpose and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read-only memory or a random access memory or both. The elements of a computer may include at least one processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer may include one or more mass storage devices for storing data, such as magnetic, magneto-optical disks, or optical disks, or may receive data from them, transmit data to them, . ≪ / RTI > Information carriers suitable for embodying computer program instructions and data include, for example, semiconductor memory devices, for example, magnetic media such as hard disks, floppy disks and magnetic tape, compact disk read only memory A magneto-optical medium such as a floppy disk, an optical disk such as a DVD (Digital Video Disk), a ROM (Read Only Memory), a RAM , Random Access Memory), a flash memory, an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and the like. The processor and memory may be supplemented or included by special purpose logic circuitry.

In addition, the computer-readable medium can be any available media that can be accessed by a computer, and can include both computer storage media and transmission media.

While the specification contains a number of specific implementation details, it should be understood that they are not to be construed as limitations on the scope of any invention or claim, but rather on the description of features that may be specific to a particular embodiment of a particular invention Should be understood. Certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Further, although the features may operate in a particular combination and may be initially described as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, Or a variant of a subcombination.

Likewise, although the operations are depicted in the drawings in a particular order, it should be understood that such operations must be performed in that particular order or sequential order shown to achieve the desired result, or that all illustrated operations should be performed. In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various device components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and devices will generally be integrated together into a single software product or packaged into multiple software products It should be understood.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

101: 3D image data editing device
102: Server

Claims (5)

Comprising: obtaining a plurality of three-dimensional image data each including a plurality of rendering object elements from a server;
Generating polygon data for the plurality of rendering target elements using a preset of the plurality of rendering target elements;
Combining geometry information of the plurality of rendering subject elements with the polygon data; And
Rendering the combined data to generate a three-dimensional image sequence
Dimensional image data.
The method according to claim 1,
Wherein the plurality of three-dimensional image data comprises:
The data being stored in the server through a modeling program and including a plurality of distance-specific data generated by different virtual camera distances for each of the plurality of rendering target elements,
How to edit three-dimensional image data.
The method according to claim 1,
The preset includes:
The vertex information for the plurality of rendering target elements,
Wherein the geometry information includes:
And information on the surface of the plurality of rendering target elements and information on the outline
How to edit three-dimensional image data.
The method according to claim 1,
The generated polygon data includes,
Wherein the color and rendering information for the plurality of rendering target elements is absent
How to edit three-dimensional image data.
The method according to claim 1,
Wherein the combining comprises:
The geometry information and the polygon data of the plurality of rendering target elements are selectively combined according to a preset reference
How to edit a three-dimensional image.

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