CN110838159B - Object sharing device and method with material information in animation production - Google Patents
Object sharing device and method with material information in animation production Download PDFInfo
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- CN110838159B CN110838159B CN201911078586.2A CN201911078586A CN110838159B CN 110838159 B CN110838159 B CN 110838159B CN 201911078586 A CN201911078586 A CN 201911078586A CN 110838159 B CN110838159 B CN 110838159B
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Abstract
The invention discloses an object sharing device and method with material information in animation production. The method comprises the following steps: responding to a user selection of at least one baked object in the pre-scene; acquiring a three-dimensional shape of an object; unfolding a three-dimensional shape body into at least two-dimensional shape surfaces in a plane coordinate system; acquiring common edge information of each two adjacent two-dimensional shape surfaces; acquiring surface material information of each two-dimensional shape surface; establishing a position index of the surface material information related to each two-dimensional shape surface in the three-dimensional shape body according to the common edge information; creating a shape file storing the three-dimensional shape body, and storing the three-dimensional shape body in the shape file; a material file storing surface material information is created, and all the surface map material information and position indexes are stored in the material file. According to the method, the cache geometric result material of the baked object can be derived, so that the geometric result and the related material of the object can be directly loaded in subsequent animation production, and the animation production efficiency is improved.
Description
Technical Field
The present invention relates to the field of computer technology and animation, and more particularly, to an apparatus and method for sharing objects having material information in animation.
Background
In the process of making 3D animation, in order to improve rendering efficiency, it is usually necessary to make the relevant character props in the shots as geometric cache. Wherein, the Alembic cache is a file format widely used at present; the Alembic file format (hereinafter referred to as abc cache file) is an open computer image exchange framework; the complex scene with animation can be refined into a set of non-process and application program independent baking geometric figure results.
The abc cache file comprises information such as displacement, vertex, UV (ultraviolet) and visibility of the cache geometric result; the method does not include information such as the material and texture mapping of the cached geometric result, and is inconvenient for animation production in the subsequent link.
Disclosure of Invention
The embodiment of the invention at least discloses an object sharing method with material information in animation production, which can lead out the material of the cache geometric result of a baked object in animation production software, is convenient for directly loading the geometric result and related material of the object in the animation production in the next link and improves the animation production efficiency.
The method comprises the following steps:
responding to a user selection of at least one baked object in the front scene;
acquiring a three-dimensional shape of the object;
unfolding the three-dimensional shape body into at least two-dimensional shape surfaces in a plane coordinate system;
acquiring common edge information of each two adjacent two-dimensional shape surfaces;
obtaining the surface material information of each two-dimensional shape surface;
establishing a position index of the surface material information associated with each two-dimensional shape surface in the three-dimensional shape body according to the common side information;
creating a shape file storing the three-dimensional shape and storing the three-dimensional shape in the shape file;
and creating a material file for storing the surface material information, and storing all the surface map material information and the position index in the material file.
In some embodiments of the present disclosure, the unfolding the three-dimensional shape body into the two-dimensional shape surface is configured to:
acquiring an original two-dimensional plane and an original three-dimensional curved surface in the three-dimensional shape body;
fitting the original three-dimensional curved surface into an unfolded two-dimensional plane;
mapping the original two-dimensional plane and the expanded two-dimensional plane in the planar coordinate system;
and selecting the original two-dimensional plane and the expanded two-dimensional plane after mapping as the two-dimensional shape plane.
In some embodiments of the present disclosure, the fitting the original three-dimensional curved surface to the unfolded two-dimensional plane is configured to:
acquiring the surface center of the original three-dimensional curved surface in a mapping coordinate system;
establishing a reference plane in the mapped coordinate system that passes through the center of the surface and is tangent to the original three-dimensional surface;
mapping the original three-dimensional plane to the reference plane in the mapping coordinate system and forming the unfolded two-dimensional plane within the reference plane.
In some embodiments of the disclosure, the establishing, according to the common side information, a position index of the surface material information associated with each two-dimensional shape surface in the three-dimensional shape body is configured to:
detecting the position relation of each two-dimensional shape surface in the three-dimensional shape body according to the common edge information;
and establishing the position index of the surface material information associated with each two-dimensional shape surface in the three-dimensional shape body according to the position relation.
In some embodiments of the disclosure, the detecting a position relationship of each two-dimensional shape surface in the three-dimensional shape body according to the common side information is configured to:
in the plane coordinate system, a common side line of two adjacent two-dimensional shape surfaces is obtained;
and detecting the position relation of each two-dimensional shape surface in the three-dimensional shape surface according to the set of each common edge.
In some embodiments of the disclosure, the detecting the position relationship according to the set of common edges is configured to:
acquiring the number of common edges of each two-dimensional shape surface in the plane coordinate system;
establishing a coordinate matrix, wherein the element position of the coordinate matrix is associated with the coordinate position of each two-dimensional shape surface in the plane coordinate system;
filling the element positions with the number of common edges corresponding to the two-dimensional shape surfaces;
selecting the element positions in the coordinate matrix as the positional relationship of the associated two-dimensional shape surfaces.
In some embodiments of the present disclosure, the responding user loads the object in a later scene;
loading the shape file and establishing a three-dimensional reconstruction body according to the shape file;
loading the material file, and acquiring the position index and the surface material information;
and injecting the surface material information into the three-dimensional reconstruction body according to the position index.
In some embodiments of the present disclosure, the responding user is a user of the device;
loading the shape file and establishing a three-dimensional reconstruction body according to the shape file;
expanding the three-dimensional reconstruction body into at least two-dimensional reconstruction surfaces in the plane coordinate system;
acquiring common edge reconstruction information of each two adjacent two-dimensional reconstruction surfaces;
detecting the position reconstruction relation of each two-dimensional reconstruction surface in the three-dimensional reconstruction body according to the common edge reconstruction information;
loading the material file, and acquiring the position index and the surface material information;
associating the surface material information to the two-dimensional reconstruction surface according to the position index;
and injecting the surface material information associated with the two-dimensional reconstruction surface into the three-dimensional reconstruction body according to the position reconstruction relation.
The embodiment of the invention at least discloses an object sharing device with material information in animation production. The device comprises a three-dimensional acquisition module, a two-dimensional construction module, a position index module, a material index module and a file storage module.
A three-dimensional acquisition module for acquiring a three-dimensional shape of the object;
the two-dimensional construction module is used for expanding the three-dimensional shape body into at least two-dimensional shape surfaces in a plane coordinate system;
the position indexing module is used for acquiring the common edge information of each two adjacent two-dimensional shape surfaces;
the material index module is used for acquiring surface material information of each two-dimensional shape surface and establishing a position index of the surface material information related to each two-dimensional shape surface in the three-dimensional shape body according to the common edge information;
and the file storage module is used for creating a shape file for storing the three-dimensional shape body, storing the three-dimensional shape body in the shape file, creating a material file for storing the surface material information, and storing all the surface map material information and the position index in the material file.
In view of the above, other features and advantages of the disclosed exemplary embodiments will become apparent from the following detailed description of the disclosed exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a flow chart of an example method;
FIG. 2 is a flowchart illustrating the execution of step S631 in the exemplary method;
FIG. 3 is a flow chart of a subsequent method of an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as disclosed in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The embodiment discloses an object sharing method with material information in animation production. When the method of the embodiment is used for exporting the object model in the Alembic format, the method is used for improving the animation production efficiency in the subsequent link by exporting the material information of the object model in the previous animation production link, and the material loss rate is low.
To achieve the above, referring to fig. 1, an example of the method of this embodiment is to derive a cube object produced by maya, where one surface of the cube object is a curved surface, and the other five surfaces are planes, and the method for sharing the cube object is implemented as follows.
S100 monitors the user' S selection of a baked square object in the scene in maya.
S200, when the user selects the baked square object and performs model derivation, acquires a three-dimensional shape of the square object.
S310, acquiring all five original two-dimensional planes and an original three-dimensional curved surface in the three-dimensional shape body;
s321, acquiring a curved surface center of the original three-dimensional curved surface in a UV coordinate system;
s322, establishing a reference plane which passes through the center of the curved surface and is tangent to the original three-dimensional curved surface in the UV coordinate system;
s323 maps the original three-dimensional plane to a reference plane in the UV coordinate system, and forms an unfolded two-dimensional plane within the reference plane.
S330, mapping five original two-dimensional planes and a fitted unfolded two-dimensional plane in an xy axis coordinate system;
s340 selects the mapped original two-dimensional plane and the mapped expanded two-dimensional plane as two-dimensional shape planes.
S400, acquiring the common edge information of each two adjacent two-dimensional shape surfaces, wherein the common edge is a straight line edge or an arc line edge and is not a closed-loop circular edge.
S500 obtains the surface material information of each two-dimensional shape surface, including material, texture, and the like.
S611, acquiring a common side line of two adjacent two-dimensional shape surfaces in an xy axis coordinate system;
s612 detects the positional relationship of the two-dimensional shape surfaces in the three-dimensional shape surface from the set of the common edges.
S620 establishes a position index of the surface material information associated with each two-dimensional shape surface in the three-dimensional shape body according to the positional relationship.
S700, creating a shape file for storing the three-dimensional shape body, and storing the three-dimensional shape body in the shape file.
S800 creates a material file storing surface material information, and stores all the surface map material information and position indexes in the material file.
In some embodiments of the present invention, referring to fig. 2, S613 is performed as follows.
S100, the number of common lines of the two-dimensional shape surfaces is obtained in an xy axis coordinate system.
S200, establishing a coordinate matrix, wherein element positions of the coordinate matrix are associated with coordinate positions of the two-dimensional shape surfaces in an xy-axis coordinate system.
S300, filling the common edge line number of the corresponding two-dimensional shape surface in the element position.
S400 selects a positional relationship in which the element positions in the coordinate matrix are associated two-dimensional shape planes.
The present embodiment further discloses an electronic terminal, and for convenience of description, only the parts related to the embodiments of the present invention are shown. The electronic terminal of the present embodiment is configured to store and execute one or more instructions, and when the instructions are executed by a processor of the electronic terminal, all or part of the steps of the method of the present embodiment are implemented. Electronic terminals may also be referred to as Mobile terminals (Mobile terminals), mobile Stations (MSs), user Equipments (UEs), and so on. May be a device providing voice and/or data connectivity to a user, a handheld device with wireless connection capability, or other processing device connected to a wireless modem, such as: the electronic terminal may be a mobile phone (or called "cellular" phone), a Computer with a mobile terminal, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, or may be a wearable device (such as a smart watch, a smart bracelet, or the like), a tablet Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a POS (Point of Sales), or the like.
In addition, the embodiment also discloses an object sharing device with material information in animation production. The device comprises a three-dimensional acquisition module, a two-dimensional construction module, a position index module, a material index module and a file storage module. The three-dimensional acquisition module is configured to acquire a three-dimensional shape of the object; the two-dimensional construction module is configured to expand the three-dimensional shape body into at least two-dimensional shape surfaces in an xy-axis coordinate system; the position indexing module is configured to acquire common side information of each two adjacent two-dimensional shape surfaces; the material index module is configured to acquire surface material information of each two-dimensional shape surface and establish a position index of the surface material information related to each two-dimensional shape surface in the three-dimensional shape body according to the common edge information; the file storage module is configured to create a shape file storing three-dimensional shapes, store the three-dimensional shapes in the shape file, create a material file storing surface material information, and store all the surface map material information and the position index in the material file.
The invention discloses a follow-up method for loading three-dimensional reconstruction volume material information of a square object according to a shape file and a material file exported in an embodiment.
Referring to fig. 3, the method is executed to implement the following steps.
S100, the shape file is loaded, and a three-dimensional reconstruction body is built according to the shape file.
S200, loading a material file, and acquiring a position index and material information.
S300, injecting the surface material information into the three-dimensional reconstruction body according to the position index.
Another preferred method for loading three-dimensional reconstructed volume material information of a square object of this embodiment is implemented as follows.
S100 responds to the user loading an object in a later scene.
S200, loading the shape file, and building a three-dimensional reconstruction body according to the shape file.
S300, expanding a three-dimensional reconstruction body into at least two-dimensional reconstruction surfaces in an xy axis coordinate system;
s400, acquiring the common edge reconstruction information of each two adjacent two-dimensional reconstruction surfaces;
s500, detecting the position reconstruction relation of each two-dimensional reconstruction surface in the three-dimensional reconstruction body according to the shared reconstruction information;
s600, loading a material file, and acquiring a position index and material information of the surface material;
s700, associating the surface material information to a two-dimensional reconstruction surface according to the position index;
s800, injecting the plane material information related to the two-dimensional reconstruction surface into the three-dimensional reconstruction body according to the position reconstruction relation.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for sharing objects with material information in animation production, the method comprising:
responding to a user selection of at least one baked object in the front scene;
acquiring a three-dimensional shape of the object;
acquiring an original two-dimensional plane and an original three-dimensional curved surface in the three-dimensional shape body;
establishing a reference plane which passes through the center of the original three-dimensional curved surface and is tangent to the original three-dimensional curved surface in a mapping coordinate system;
mapping the original three-dimensional curved surface to the reference plane in the mapping coordinate system and forming an unfolded two-dimensional plane within the reference plane;
mapping the original two-dimensional plane and the expanded two-dimensional plane in a plane coordinate system;
selecting the mapped original two-dimensional plane and the mapped expanded two-dimensional plane as at least two-dimensional shape planes;
acquiring common edge information of each two adjacent two-dimensional shape surfaces;
obtaining the surface material information of each two-dimensional shape surface;
detecting the position relation of each two-dimensional shape surface in the three-dimensional shape body according to the common side information;
establishing a position index of the surface material information associated with each two-dimensional shape surface in the three-dimensional shape body according to the position relation;
creating a shape file storing the three-dimensional shape and storing the three-dimensional shape in the shape file;
and creating a material file for storing the surface material information, and storing all the surface map material information and the position index in the material file.
2. The method for sharing an object having material information in animation according to claim 1, wherein detecting a positional relationship of each of the two-dimensional shape surfaces in the three-dimensional shape body based on the common side information is configured to: in the plane coordinate system, acquiring a common side line of two adjacent two-dimensional shape surfaces;
and detecting the position relation of each two-dimensional shape surface in the three-dimensional shape body according to the set of each common edge line.
3. The method for sharing an object with material information in animation according to claim 2, wherein the detecting the positional relationship based on the set of the common edges is configured to: acquiring the number of common edges of each two-dimensional shape surface in the plane coordinate system;
establishing a coordinate matrix, wherein the element position of the coordinate matrix is associated with the coordinate position of each two-dimensional shape surface in the plane coordinate system;
filling the number of common edges corresponding to the two-dimensional shape surfaces in the element positions;
selecting the element positions in the coordinate matrix as the positional relationship of the associated two-dimensional shape surfaces.
4. The method for sharing an object with material information in animation according to claim 1, wherein in response to a user loading the object in a back scene;
loading the shape file, and establishing a three-dimensional reconstruction body according to the shape file;
loading the material file, and acquiring the position index and the material information of the surface material;
and injecting the surface material information into the three-dimensional reconstruction body according to the position index.
5. The method for sharing an object with material information in animation according to claim 1, wherein in response to a user loading the object in a back scene;
loading the shape file and establishing a three-dimensional reconstruction body according to the shape file;
expanding the three-dimensional reconstruction body into at least two-dimensional reconstruction surfaces in the plane coordinate system;
acquiring common edge reconstruction information of each two adjacent two-dimensional reconstruction surfaces;
detecting the position reconstruction relation of each two-dimensional reconstruction surface in the three-dimensional reconstruction body according to the common edge reconstruction information;
loading the material file, and acquiring the position index and the surface material information;
associating the surface material information to the two-dimensional reconstruction surface according to the position index;
and injecting the surface material information associated with the two-dimensional reconstruction surface into the three-dimensional reconstruction body according to the position reconstruction relation.
6. An object sharing device with material information in animation production is characterized by comprising a three-dimensional acquisition module, a two-dimensional construction module, a position indexing module, a material indexing module and a file storage module, wherein the three-dimensional acquisition module is used for acquiring a three-dimensional shape of an object;
the two-dimensional construction module is used for acquiring an original two-dimensional plane and an original three-dimensional curved surface in the three-dimensional shape body; establishing a reference plane which passes through the center of the original three-dimensional curved surface and is tangent to the original three-dimensional curved surface in a mapping coordinate system; mapping the original three-dimensional curved surface to the reference plane in the mapping coordinate system, and forming an unfolded two-dimensional plane within the reference plane; mapping the original two-dimensional plane and the expanded two-dimensional plane in a plane coordinate system; selecting the mapped original two-dimensional plane and the mapped expanded two-dimensional plane as at least two-dimensional shape planes;
the position indexing module is used for acquiring the common edge information of each two adjacent two-dimensional shape surfaces;
the material index module is used for acquiring the surface material information of each two-dimensional shape surface; detecting the position relation of each two-dimensional shape surface in the three-dimensional shape body according to the common side information; establishing the position index of the surface material information associated with each two-dimensional shape surface in the three-dimensional shape body according to the position relation;
and the file storage module is used for creating a shape file for storing the three-dimensional shape body, storing the three-dimensional shape body in the shape file, creating a material file for storing the surface material information, and storing all the surface map material information and the position index in the material file.
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| CN112150592B (en) * | 2020-09-28 | 2023-07-14 | 腾讯科技（深圳）有限公司 | Animation file generation method and device, storage medium and electronic equipment |
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