CN116012502A - Skeletal animation generation method, device, storage medium and electronic device - Google Patents

Abstract

The application discloses a method and a device for generating bone animation, a storage medium and an electronic device. The method comprises the following steps: acquiring at least one rigid body model, wherein the at least one rigid body model is a virtual model with a fixed structure; generating a skeleton point cloud corresponding to each rigid body model according to the target position of at least one rigid body model; constructing a skeleton matrix corresponding to the skeleton point cloud based on the rigid body animation corresponding to the at least one rigid body model; and driving at least one rigid body model based on a skeleton matrix corresponding to the skeleton point cloud to generate skeleton animation corresponding to the at least one rigid body model, wherein the skeleton matrix is at least used for recording animation information of the rigid body model corresponding to the skeleton matrix, and the animation information at least comprises rotation information, scaling information and offset information of the at least one rigid body model. The method and the device solve the technical problem that in the related art, the skeletal animation can not be generated by the rigid body animation of the rigid body model.

Description

Skeletal animation generation method, device, storage medium and electronic device

technical field

The present disclosure relates to the field of computers, and in particular, to a method, device, storage medium and electronic device for generating skeletal animation.

Background technique

Skeletal animation is a kind of model animation. In skeletal animation, the model has a skeletal structure composed of interconnected "bones". The animation is generated for the model by changing the orientation and position of the bones.

Currently, some game engines support GPU (Graphics Processing Unit, Graphics Processor) to generate skeletal animations, however, some game engines do not support non-skeletal skinned animations, for example, rigid body animations. In order to restore the rigid body animation of the model in the game engine, it is necessary to convert the rigid body animation into a skeletal animation that the game engine can recognize.

However, in related technologies, some game engines cannot convert rigid body animation to skeletal animation; even if some game engines can convert rigid body animation to skeletal animation, the bones of the model cannot be generated during the conversion process, and thus skinning and animation cannot be generated. Therefore, it cannot meet the needs of related projects that require skin animation.

For the above problems, no effective solution has been proposed yet.

Contents of the invention

At least some embodiments of the present disclosure provide a method, device, storage medium, and electronic device for generating skeletal animation, so as to at least solve the technical problem in the related art that the rigid body animation of the rigid body model cannot be used to generate skeletal animation.

According to one embodiment of the present disclosure, a method for generating skeletal animation is provided, including: acquiring at least one rigid body model, wherein at least one rigid body model is a virtual model with a fixed structure; A skeleton point cloud corresponding to a rigid body model; constructing a bone matrix corresponding to a skeleton point cloud based on a rigid body animation corresponding to at least one rigid body model; Corresponding skeletal animation, wherein the skeletal matrix is at least used to record animation information of a rigid body model corresponding to the skeletal matrix, and the animation information at least includes rotation information, scaling information, and offset information of at least one rigid body model.

According to one embodiment of the present disclosure, there is also provided a device for generating skeletal animation, including: an acquisition module, configured to acquire at least one rigid body model, wherein at least one rigid body model is a virtual model with a fixed structure; a point cloud generation module, It is used to generate a bone point cloud corresponding to each rigid body model according to the target position of at least one rigid body model; a matrix construction module is used to construct a bone matrix corresponding to the bone point cloud based on the rigid body animation corresponding to at least one rigid body model; the animation generation module , used to drive at least one rigid body model based on the bone matrix corresponding to the bone point cloud, and generate a skeleton animation corresponding to at least one rigid body model, wherein the bone matrix is at least used to record the animation information of the rigid body model corresponding to the bone matrix, and the animation The information at least includes rotation information, scaling information and offset information of at least one rigid body model.

According to one embodiment of the present disclosure, there is also provided a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, wherein the computer program is set to execute the above method for generating skeletal animation when running.

According to one embodiment of the present disclosure, there is also provided an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the above method for generating skeletal animation.

In at least some embodiments of the present disclosure, the rigid body animation based on the rigid body model is used to construct the bone matrix. After obtaining at least one rigid body model with a fixed structure, the skeleton corresponding to each rigid body model is generated according to the target position of the at least one rigid body model. point cloud, and then construct a bone matrix corresponding to the bone point cloud based on the rigid body animation corresponding to at least one rigid body model, and drive at least one rigid body model based on the bone matrix corresponding to the bone point cloud to generate bones corresponding to at least one rigid body model Animation, wherein the bone matrix is at least used to record animation information of a rigid body model corresponding to the bone matrix, and the animation information at least includes rotation information, scaling information, and offset information of at least one rigid body model.

In the above process, by constructing the skeleton matrix corresponding to the skeleton point cloud, the skeleton animation corresponding to the rigid body model can be generated, that is, the solution provided by the present disclosure can realize the rigid body animation of the rigid body model to generate the skeleton animation. In addition, in the process of generating skeletal animation, the skeletal point cloud is generated based on the target position of the rigid body model, thereby establishing the binding relationship between the rigid body model and the bones in the skeletal animation, and then by recording the animation information of the rigid body animation. The matrix drives the rigid body model to realize the generation of skeletal animation. In this process, the corresponding skeleton of the rigid body model is generated. That is, the solution provided by this disclosure can meet the needs of related projects of skin animation and improve the conversion of rigid body animation into skeletal animation. conversion effect.

It can be seen that the solution provided in this disclosure achieves the purpose of generating skeletal animation from the rigid body animation of the rigid body model, thereby achieving the technical effect of improving the conversion effect of rigid body animation into skeletal animation, and further solving the problem that cannot be achieved in related technologies. Rigid body animation of rigid body model generates technical problems of skeletal animation.

Description of drawings

The drawings described here are used to provide a further understanding of the present disclosure, and constitute a part of the present application. The schematic embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute improper limitations to the present disclosure. In the attached picture:

FIG. 1 is a block diagram of the hardware structure of a mobile terminal of a method for generating skeletal animation according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of a method for generating skeletal animation according to one embodiment of the present disclosure;

Fig. 3 is a schematic diagram of a rigid body model according to one embodiment of the present disclosure;

Fig. 4 is a schematic diagram of generating a bone matrix according to one embodiment of the present disclosure;

Fig. 5 is a schematic diagram of generating a bone matrix according to one embodiment of the present disclosure;

Fig. 6 is a schematic diagram of an export interface of a skeletal animation according to one embodiment of the present disclosure;

Fig. 7 is a structural block diagram of a device for generating skeletal animation according to one embodiment of the present disclosure;

FIG. 8 is a schematic diagram of an electronic device according to an alternative embodiment of the present disclosure.

Detailed ways

In order to enable those skilled in the art to better understand the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only It is an embodiment of a part of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present disclosure.

It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In a possible implementation, aiming at the methods usually used in the background of skeletal animation generation in the computer field, after practice and careful research by the inventor, there are still related technologies that cannot realize rigid body animation of rigid body models to generate skeletons The technical problem of animation, based on this, the embodiment of the present disclosure proposes a method for generating skeletal animation, adopting the technical idea of constructing a skeleton matrix based on the rigid body animation of the rigid body model, and realizing the generation of skeletal animation from the rigid body animation of the rigid body model The purpose is to solve the technical problem that the rigid-body animation of the rigid-body model cannot be used to generate the skeletal animation in related technologies, thereby achieving the technical effect of improving the conversion effect of the rigid-body animation into the skeletal animation.

The foregoing method embodiments involved in the present disclosure may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, the mobile terminal may be a smart phone, a tablet computer, a handheld computer, and a mobile Internet device, a PAD, a game console and other terminal devices. FIG. 1 is a block diagram of a hardware structure of a mobile terminal according to a method for generating skeletal animation according to an embodiment of the present disclosure. As shown in FIG. 1, the mobile terminal may include one or more (only one is shown in FIG. 1) processor 102 (the processor 102 may include but not limited to a central processing unit (CPU), a graphics processing unit (GPU), a digital Processing devices such as signal processing (DSP) chips, microprocessors (MCU), programmable logic devices (FPGA), neural network processors (NPU), tensor processors (TPU), artificial intelligence (AI) type processors, etc. ) and a memory 104 for storing data, in one embodiment of the present disclosure, may further include: an input and output device 108 and a display device 110 .

In some optional embodiments mainly based on game scenes, the above-mentioned device can also provide a human-computer interaction interface with a touch-sensitive surface, and the human-computer interaction interface can sense finger contact and/or gestures to communicate with a graphical user interface (GUI). ) for human-computer interaction, the human-computer interaction functions may include the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interface, playing digital video, playing digital music And/or web browsing, etc., the executable instructions for performing the above-mentioned human-computer interaction functions are configured/stored in one or more processor-executable computer program products or readable storage media.

Those skilled in the art can understand that the structure shown in FIG. 1 is only for illustration, and it does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal may also include more or fewer components than those shown in FIG. 1 , or have a different configuration from that shown in FIG. 1 .

According to one embodiment of the present disclosure, an embodiment of a method for generating skeletal animation is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

In a possible implementation manner, an embodiment of the present disclosure provides a method for generating skeletal animation, which can be applied to a terminal device, where the terminal device can be a local terminal device or a cloud interactive system. client device. Fig. 2 is a flowchart of a method for generating skeletal animation according to one embodiment of the present disclosure. As shown in Fig. 2, the method includes the following steps:

Step S202, acquiring at least one rigid body model.

In step S202, at least one rigid body model is a virtual model with a fixed structure. Specifically, the rigid body model is a 3D virtual model that has no structural deformation, but only displacement, rotation or scaling. For example, in animations such as cracking without a picture, impact reaction of hard materials, etc., the rigid body model will not deform, but only generate corresponding dynamics Feedback, all vertices of the rigid body model are subject to uniform force and undergo motion changes.

It should be noted that the above at least one rigid body model may be a sub-model in the target rigid body model, for example, in the schematic diagram of the rigid body model shown in Figure 3, the target rigid body model includes at least rigid body model 1, rigid body model 2 and rigid body model 3 . In addition, the above-mentioned at least one rigid body model can also be an independent model, for example, the rigid body model A in the at least one rigid body model is the armor of the avatar, and the rigid body model B is the rocks around the avatar.

Optionally, the terminal device can use 3D computer graphics software (for example, Houdini) to read the relevant information of the rigid body model, and generate skeleton animation based on the rigid body animation corresponding to the rigid body model.

Step S204, generating a skeleton point cloud corresponding to each rigid body model according to the target position of at least one rigid body model.

In step S204, the target position of at least one rigid body model may be the center point of the rigid body model, or the center of gravity of the rigid body model. Usually, the center point or center of gravity of each independent rigid body model in the rigid body animation is always the same. Therefore, based on the center point or center of gravity of the rigid body model, the bone point cloud corresponding to each rigid body can be established to establish the skeleton and The association relationship between the rigid body models, and then according to the association relationship between the skeleton and the rigid body model, the generation of the skeleton animation corresponding to the rigid body model can be realized.

In addition, the skeleton corresponding to the rigid body model can be generated through step S204, that is, the solution provided by the present disclosure can meet the requirements of related projects of skin animation, and improve the conversion effect of rigid body animation into skeletal animation.

Step S206, constructing a skeleton matrix corresponding to the skeleton point cloud based on the rigid body animation corresponding to at least one rigid body model.

In step S206, the rigid body animation corresponding to the rigid body model is achieved through physical rigid body calculation to quickly obtain more accurate and efficient animation effects, and this process does not need to manually set the animation frame by frame. But rigid body animation cannot be displayed in the game engine, so it is necessary to convert rigid body animation to skeletal animation. Each skeletal point cloud corresponds to a skeletal matrix, and the skeletal matrix is at least used to record the animation information of the rigid body model corresponding to the skeletal matrix. The animation information at least includes rotation information, scaling information, and offset information of at least one rigid body model.

That is, the present disclosure establishes the relationship between the rigid body model and the skeleton through the bone matrix, that is, establishes the relationship between the rigid body animation and the skeleton animation, thereby realizing the generation of the skeleton animation.

In addition, in the present disclosure, the skeletal animation is generated based on the rigid body animation, that is, the skeletal animation generated in the present disclosure does not need to be animated frame by frame, thereby improving the generation efficiency of the skeletal animation and reducing the generation cost of the skeletal animation.

Step S208, based on the skeleton matrix corresponding to the skeleton point cloud, drive at least one rigid body model to generate a skeleton animation corresponding to the at least one rigid body model.

After obtaining the bone matrix corresponding to the bone point cloud, the terminal device can drive the corresponding rigid body model through the bone matrix corresponding to each bone point cloud, so that the rigid body model moves, and the animation of the rigid body model moving in the game engine is obtained, namely Skeletal animation.

Based on the solutions defined in steps S202 to S208 above, it can be known that in at least some embodiments of the present disclosure, the rigid body animation based on the rigid body model is used to construct the bone matrix. After obtaining at least one rigid body model with a fixed structure, according to at least The target position of a rigid body model generates a bone point cloud corresponding to each rigid body model, and then constructs a bone matrix corresponding to the bone point cloud based on the rigid body animation corresponding to at least one rigid body model, and based on the bone matrix corresponding to the bone point cloud, Drive at least one rigid body model to generate a skeletal animation corresponding to at least one rigid body model, wherein the bone matrix is at least used to record animation information of the rigid body model corresponding to the bone matrix, and the animation information at least includes rotation information and scaling information of at least one rigid body model and offset information.

It is easy to notice that in the above process, by constructing the bone matrix corresponding to the bone point cloud, the generation of the bone animation corresponding to the rigid body model can be realized, that is, the solution provided by the present disclosure can realize the rigid body animation of the rigid body model to generate bones animation. In addition, in the process of generating skeletal animation, the skeletal point cloud is generated based on the target position of the rigid body model, thereby establishing the binding relationship between the rigid body model and the bones in the skeletal animation, and then by recording the animation information of the rigid body animation. The matrix drives the rigid body model to realize the generation of skeletal animation. In this process, the corresponding skeleton of the rigid body model is generated. That is, the solution provided by this disclosure can meet the needs of related projects of skin animation and improve the conversion of rigid body animation into skeletal animation. conversion effect.

It can be seen that the solution provided in this disclosure achieves the purpose of generating skeletal animation from the rigid body animation of the rigid body model, thereby achieving the technical effect of improving the conversion effect of rigid body animation into skeletal animation, and further solving the problem that cannot be achieved in related technologies. Rigid body animation of rigid body model generates technical problems of skeletal animation.

In an optional embodiment, after acquiring at least one rigid body model, the terminal device needs to mark the rigid body model. Specifically, the terminal device marks at least one rigid body model to obtain a model identifier corresponding to the at least one rigid body model.

It should be noted that the above marking of the rigid body model includes but is not limited to marking the name of the rigid body model or other markings, wherein the markings of different rigid body models are different, that is, the marking of each rigid body model is unique. Uniquely mark the rigid body model to facilitate subsequent indexing of the bone matrix based on the mark.

Further, as shown in FIG. 2, after acquiring at least one rigid body model, the terminal device executes step S204, that is, generating a skeleton point cloud corresponding to each rigid body model according to the target position of at least one rigid body model.

Specifically, the terminal device first determines the time length of the skeletal animation to be generated, and determines the center point of at least one rigid body model in the first frame of animation corresponding to the time length to obtain the initial target position; then, based on the initial target position, at least one The rigid body model is skinned, and the bone point cloud corresponding to each rigid body model is obtained.

It should be noted that, in the process of skinning at least one rigid body model, a complete skinning operation is performed on the rigid body model based on the center point of each rigid body model to generate the corresponding skeleton of the rigid body model, so as to realize Rigid body model and bone binding.

In addition, in this embodiment, the skinning operation of the rigid body model and the generation of bones can be realized, thereby avoiding the problem in the related art that when the rigid body animation is converted into skeletal animation, the bones cannot be generated, and the skin and animation are generated according to the bones .

Further, as shown in FIG. 2 , after determining the skeleton point cloud corresponding to each rigid body model, the terminal device can construct the skeleton matrix corresponding to the skeleton point cloud based on the rigid body animation corresponding to at least one rigid body model.

Specifically, the terminal device constructs an initial bone matrix based on the bone point cloud, and determines the animation information of each rigid body model in each frame of animation based on the model identification corresponding to at least one rigid body model and the rigid body animation corresponding to at least one rigid body model; then, Then update the initial bone matrix based on the animation information of each frame of animation to obtain the bone matrix corresponding to at least one rigid body model in each frame of animation.

It should be noted that the initial bone matrix above records the initial animation information corresponding to each center point in the first frame of animation. The generation schematic diagram of the bone matrix of rigid body model as shown in Figure 4, in Figure 4, each rigid body model has an initial bone matrix, and in this initial bone matrix, the offset information of rigid body model, rotation information and scaling information are all is the initial variable that does not change. Wherein, in this embodiment, the offset information of the rigid body model is the offset information relative to the position of the rigid body model in the world coordinate system as the starting point.

In addition, the terminal device can determine the rotation information, scaling information, and offset information of the rigid body model in the current frame animation from each frame of the rigid body animation based on the model identification, and then based on the The rotation information, scaling information and offset information update the initial matrix of the rigid body model in real time, so as to update the rotation, scaling and offset of the rigid body model in the skeleton animation, so as to realize the driving of the rigid body model and generate the rigid body model corresponding skeletal animation. For example, FIG. 5 shows the bone matrix after updating the bone matrix in FIG. 4 .

Furthermore, after determining the skeleton matrix corresponding to the skeleton point cloud, the terminal device executes step S208, that is, based on the skeleton matrix corresponding to the skeleton point cloud, drives at least one rigid body model to generate a skeleton animation corresponding to the at least one rigid body model.

Specifically, in the current frame animation, the terminal device determines the current bone matrix corresponding to at least one rigid body model from the bone matrix corresponding to the bone point cloud based on the model identification corresponding to at least one rigid body model; then, based on the current bone matrix. The animation information of at least one rigid body model in the last frame of animation is updated to obtain the current animation information of at least one rigid body model in the current frame of animation, and generate the skeleton animation of at least one rigid body model based on the current animation information of at least one rigid body model.

It should be noted that, in the above process, after the bone matrix is updated, the terminal device updates the animation information of the corresponding rigid body model based on the updated bone matrix, so as to realize the driving of the rigid body model, thereby realizing the generation of bone animation .

In addition, the three elements required to generate skinned animation are the rigid body model after skinning, the original bone position (that is, the information recorded by the initial bone matrix), and bone animation. After obtaining the three elements needed to generate skin animation, the terminal device can use the ROP FBX Character Output function of Houdini software to export the skeleton animation with skin, which can be recognized and used by the game engine.

Optionally, FIG. 6 shows a schematic diagram of an interface for exporting skeletal animation, and the user can set parameters in the schematic interface diagram shown in FIG. 6 to implement setting of export information for skeletal animation. Among them, in Figure 6, Start/End/Inc is used to set the start frame, end frame and sampling interval of the exported animation; Outupt Fbx File is used to set the output path of the final skeletal animation; Bake Aniamtion On Obj is used to When information such as bones and skinning is needed, directly convert the rigid body animation to skeletal animation; Geometry Name is used to set the name of the bone animation when exporting; Boneroot Name is used to set the name of the exported root bone.

In an optional embodiment, the solution provided in this embodiment can also realize the merging of bones. Specifically, when the number of at least one rigid body model is multiple, the terminal device determines the first rigid body model and the second rigid body model to be merged from the multiple rigid body models, and merges the first rigid body model and the second rigid body model Processing to obtain the target rigid body model, and then, according to the center point corresponding to the target rigid body model, determine the target position of the target rigid body model, and perform skinning operation on the target rigid body model based on the target position of the target rigid body model, and obtain the target corresponding to the target rigid body model Skeleton point cloud.

That is, in this embodiment, the terminal device can first merge the rigid body models, and then skin the merged rigid body models to generate the target bone point cloud, and then generate the bone matrix of the merged rigid body model according to the target bone point cloud, To drive the merged rigid body model and generate skeletal animation. For example, rigid body model 1 is armor, and rigid body model 2 is rock. By combining the armor and rock, the target rigid body model is obtained, and then the target rigid body model after the combination of armor and rock is used to generate the bone point cloud and the target bone matrix. Generate and determine the target rigid body model after the combination of armor and rock through the target bone matrix, and generate bone animation.

In addition, in practical applications, the terminal device can also perform skinning operations on the first rigid body model and the second rigid body model to generate corresponding bone point clouds, and then determine the respective bone matrices based on the respective bone point clouds, and finally , adjust the bone matrix of the first rigid body model and/or the bone matrix of the second rigid body model, so as to realize the consistency of the animation information of the two rigid body models in the skeleton animation, so as to realize the merging of the skeleton animation of the two rigid body models.

In another optional embodiment, the solution provided in this embodiment can also implement bone segmentation. Specifically, the terminal device determines the rigid body model to be segmented from at least one rigid body model, and performs segmentation processing on the rigid body model to be segmented to obtain the third rigid body model and the fourth rigid body model, based on the target position of the third rigid body model. The rigid body model is skinned to obtain the third bone point cloud; based on the target position of the fourth rigid body model, the fourth rigid body model is skinned to obtain the fourth bone point cloud. For example, the rigid body model to be divided is a model composed of multiple rocks, and the terminal device can divide the rigid body model to be divided into two rock models (ie, the third rigid body model and the fourth rigid body model mentioned above), and then determine the two rock models respectively. The bone point cloud of each rock model and the bone matrix corresponding to the bone point cloud. Finally, use the bone matrix corresponding to each rock model to drive the corresponding rock model, so as to realize the bone animation of different rock models.

It should be noted that after the rigid body model to be divided is divided into multiple sub-rigid body models, the user can delete some sub-rigid body models from multiple sub-rigid body models according to actual needs; or select some sub-rigid body models from multiple sub-rigid body models according to actual needs model, and segment the selected part of the sub-rigid body model to achieve bone segmentation.

It can be seen from the above that in this disclosure, the rigid body animation produced by Houdini or other rigid body calculation software can be automatically converted into skeletal animation through kineFx in Houdini, which can be exported in FBX format later, and can also be combined with other skeletal animations Perform merging or splitting, etc., and finally support GPU skinning calculation in the game engine, and restore rigid body animation. Second, using rigid body animation as skeletal animation can facilitate the rigid body animation driven by GPU skinning in the game engine, and also facilitate the mixing of skeletal animation to form new animations.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present disclosure can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present disclosure.

In this embodiment, a device for generating skeletal animation is also provided, and the device is used to implement the above embodiments and preferred implementation modes, and what has been explained will not be repeated here. As used below, the term "module" may be a combination of software and/or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

FIG. 7 is a structural block diagram of a device for generating skeletal animation according to one embodiment of the present disclosure. As shown in FIG.

Wherein, the obtaining module 701 is used to obtain at least one rigid body model, wherein at least one rigid body model is a virtual model with a fixed structure; the point cloud generation module 703 is used to generate the corresponding rigid body model according to the target position of at least one rigid body model. The bone point cloud; the matrix construction module 705 is used to construct the bone matrix corresponding to the bone point cloud based on the rigid body animation corresponding to at least one rigid body model; the animation generation module 707 is used to drive at least the corresponding bone matrix based on the bone point cloud A rigid body model that generates a skeletal animation corresponding to at least one rigid body model, wherein the bone matrix is at least used to record the animation information of the rigid body model corresponding to the bone matrix, and the animation information includes at least the rotation information, scaling information, and bias of at least one rigid body model Move information.

It should be noted that the acquisition module 701, the point cloud generation module 703, the matrix construction module 705 and the animation generation module 707 correspond to steps S201 to S208 in the above-mentioned embodiment, and the examples realized by the four modules and the corresponding steps and The application scenarios are the same, but are not limited to the content disclosed in the above embodiments.

Optionally, the device for generating skeletal animation further includes: a marking module, configured to mark at least one rigid body model after acquiring at least one rigid body model, and obtain a model identifier corresponding to at least one rigid body model.

Optionally, the point cloud generation module includes: a first determination module, a second determination module and a first skinning module. Wherein, the first determination module is used to determine the time length of the skeletal animation to be generated; the second determination module is used to determine the center point of at least one rigid body model in the first frame animation corresponding to the time length to obtain the initial target position; The first skinning module is configured to perform a skinning operation on at least one rigid body model based on the initial target position, to obtain a bone point cloud corresponding to each rigid body model.

Optionally, the matrix building module includes: a first building module, a third determining module and a matrix updating module. Among them, the first building module is used to construct the initial bone matrix based on the bone point cloud, wherein the initial bone matrix records the initial animation information corresponding to each center point in the first frame of animation; the third determination module is used to base on at least one The model identification corresponding to the rigid body model and the rigid body animation corresponding to at least one rigid body model determine the animation information of each rigid body model in each frame of animation; the matrix update module is used to update the initial bone matrix based on the animation information of each frame of animation, Obtain the bone matrix corresponding to at least one rigid body model in each frame of animation.

Optionally, the animation generation module includes: a fourth determination module, an animation update module, and a first generation module. Wherein, the fourth determination module is used to determine the current bone matrix corresponding to at least one rigid body model from the bone matrix corresponding to the bone point cloud based on the model identification corresponding to at least one rigid body model in the current frame animation; the animation update module , for updating the animation information of at least one rigid body model in the previous frame of animation based on the current bone matrix, to obtain the current animation information of at least one rigid body model in the current frame of animation; the first generation module is used for at least one rigid body based on The model's current animation information generates at least one skeletal animation of the rigid body model.

Optionally, the point cloud generation module includes: a fifth determination module, a merging module, a sixth determination module and a second skinning module. Wherein, the fifth determining module is used to determine the first rigid body model and the second rigid body model to be merged from multiple rigid body models when the number of at least one rigid body model is multiple; the merging module is used for the first rigid body model The model and the second rigid body model are combined to obtain the target rigid body model; the sixth determination module is used to determine the target position of the target rigid body model according to the center point corresponding to the target rigid body model; the second skinning module is used to determine the target position of the target rigid body model based on the target rigid body model. The target position of the model performs a skinning operation on the target rigid body model to obtain the target bone point cloud corresponding to the target rigid body model.

Optionally, the point cloud generation module includes: a seventh determination module, a model segmentation module, a third skinning module and a fourth skinning module. Wherein, the seventh determination module is used to determine the rigid body model to be divided from at least one rigid body model; the model segmentation module is used to perform segmentation processing on the rigid body model to be divided to obtain the third rigid body model and the fourth rigid body model; the third The skinning module is used to skin the third rigid body model based on the target position of the third rigid body model to obtain the third bone point cloud; the fourth skinning module is used to perform skinning operations on the fourth rigid body model based on the target position of the fourth rigid body model. The rigid body model is skinned to obtain the point cloud of the fourth bone.

It should be noted that the above-mentioned modules can be realized by software or hardware. For the latter, it can be realized by the following methods, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules can be combined in any combination The forms of are located in different processors.

Embodiments of the present disclosure also provide a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the above method embodiments when running.

Optionally, in this embodiment, the above-mentioned computer-readable storage medium may include but not limited to: U disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), mobile hard disk, magnetic disk or optical disk and other media that can store computer programs.

Optionally, in this embodiment, the above-mentioned computer-readable storage medium may be located in any computer terminal in the group of computer terminals in the computer network, or in any mobile terminal in the group of mobile terminals.

Optionally, in this embodiment, the above-mentioned computer-readable storage medium may be configured to store the method for executing the above-mentioned skeletal animation generation.

Through the description of the above implementations, those skilled in the art can easily understand that the example implementations described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solution according to the embodiment of the present disclosure may be embodied in the form of a software product, and the software product may be stored in a computer-readable storage medium (which may be a CD-ROM, U disk, mobile hard disk, etc.) or on a network, Several instructions are included to make a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present application, a computer-readable storage medium stores a program product capable of implementing the above-mentioned method of this embodiment. In some possible implementation manners, various aspects of the embodiments of the present disclosure may also be implemented in the form of a program product, which includes program code, and when the program product is run on a terminal device, the program code is used to use The terminal device executes the steps according to various exemplary implementations of the present disclosure described in the "Exemplary Method" section above in this embodiment.

According to the program product for implementing the above method according to the embodiment of the present disclosure, it may adopt a portable compact disk read only memory (CD-ROM) and include program codes, and may run on a terminal device such as a personal computer. However, the program product of the embodiments of the present disclosure is not limited thereto. In the embodiments of the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program, and the program may be used by an instruction execution system, apparatus or device or in conjunction with it. In conjunction with.

The program product described above may take the form of any combination of one or more computer readable media. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more conductors, portable disks, hard disks, random access memory (RAM), read only memory (ROM), computer Erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

It should be noted that the program code contained on the computer-readable storage medium can be transmitted by any appropriate medium, including but not limited to wireless, cable, optical cable, RF, etc., or any suitable combination of the above.

Embodiments of the present disclosure also provide an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

Optionally, the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.

Optionally, in this embodiment, the above-mentioned processor may be configured to execute the above-mentioned method for generating skeletal animation provided by a computer program.

FIG. 8 is a schematic diagram of an electronic device according to an embodiment of the disclosure. As shown in FIG. 8 , the electronic device 800 is only an example, and should not limit the functions and application scope of the embodiments of the present disclosure.

As shown in FIG. 8, electronic device 800 takes the form of a general-purpose computing device. Components of the electronic device 800 may include but not limited to: at least one processor 810 mentioned above, at least one memory 820 mentioned above, a bus 830 and a display 840 connecting different system components (including the memory 820 and the processor 810 ).

Wherein, the memory 820 stores program codes, and the program codes can be executed by the processor 810, so that the processor 810 executes the steps according to various exemplary embodiments of the present disclosure described in the above method part of the embodiments of the present application.

The memory 820 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 8201 and/or a cache storage unit 8202, and may further include a read-only storage unit (ROM) 8203, and may also include Non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.

In some instances, memory 820 may also include a program/utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including but not limited to: an operating system, one or more application programs, other program modules As well as program data, each or some combination of these examples may include the implementation of the network environment. The memory 820 may further include memories that are remotely located relative to the processor 810, and these remote memories may be connected to the electronic device 800 through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Bus 830 may be representative of one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, processor 810, or a bureau using any of a variety of bus structures. domain bus.

The display 840 can be, for example, a touch-screen liquid crystal display (LCD), which can enable a user to interact with a user interface of the electronic device 800 .

Optionally, the electronic device 800 may also communicate with one or more external devices 900 (such as keyboards, pointing devices, bluetooth devices, etc.), and may also communicate with one or more devices that enable the user to interact with the electronic device 800, And/or communicate with any device (eg, router, modem, etc.) that enables the electronic device 800 to communicate with one or more other computing devices. Such communication may occur through input/output (I/O) interface 850 . Moreover, the electronic device 800 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet) through the network adapter 860 . As shown in FIG. 8 , the network adapter 860 communicates with other modules of the electronic device 800 through the bus 830 . It should be appreciated that although not shown in FIG. 8 , other hardware and/or software modules may be used in conjunction with electronic device 800, which may include, but are not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, Tape drives and data backup storage systems, etc.

The above-mentioned electronic device 800 may further include: a keyboard, a cursor control device (such as a mouse), an input/output interface (I/O interface), a network interface, a power supply and/or a camera.

Those of ordinary skill in the art can understand that the structure shown in FIG. 8 is only a schematic diagram, which does not limit the structure of the above-mentioned electronic device. For example, the electronic device 800 may also include more or fewer components than those shown in FIG. 8 , or have a different configuration than that shown in FIG. 8 . The memory 820 may be used to store computer programs and corresponding data, such as the computer programs and corresponding data corresponding to the method for generating skeletal animation in the embodiments of the present disclosure. The processor 810 executes various functional applications and data processing by running the computer program stored in the memory 820 , that is, realizes the above-mentioned method for generating skeletal animation.

The serial numbers of the above-mentioned embodiments of the present disclosure are for description only, and do not represent the advantages and disadvantages of the embodiments.

In the above-mentioned embodiments of the present disclosure, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be realized in other ways. Wherein, the device embodiments described above are only illustrative. For example, the division of the units may be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of units or modules may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or part of the contribution to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present disclosure. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disc, etc., which can store program codes. .

The above descriptions are only preferred implementations of the present disclosure. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the present disclosure. These improvements and modifications are also It should be regarded as the protection scope of the present disclosure.

Claims (10)

1. A method for generating a skeletal animation, comprising:

acquiring at least one rigid body model, wherein the at least one rigid body model is a virtual model with a fixed structure;

generating a skeleton point cloud corresponding to each rigid body model according to the target position of the at least one rigid body model;

constructing a skeleton matrix corresponding to the skeleton point cloud based on the rigid body animation corresponding to the at least one rigid body model;

and driving the at least one rigid body model based on a skeleton matrix corresponding to the skeleton point cloud, and generating a skeleton animation corresponding to the at least one rigid body model, wherein the skeleton matrix is at least used for recording animation information of the rigid body model corresponding to the skeleton matrix, and the animation information at least comprises rotation information, scaling information and offset information of the at least one rigid body model.

2. The method of claim 1, wherein after acquiring the at least one rigid body model, the method further comprises:

And marking the at least one rigid body model to obtain a model identifier corresponding to the at least one rigid body model.

3. The method of claim 2, wherein generating a skeletal point cloud corresponding to each rigid body model from the target position of the at least one rigid body model comprises:

determining the time length of a bone animation to be generated;

determining a center point of the at least one rigid body model in the first frame of animation corresponding to the time length to obtain an initial target position;

and performing skin operation on the at least one rigid body model based on the initial target position to obtain a skeleton point cloud corresponding to each rigid body model.

4. The method of claim 3, wherein constructing a skeletal matrix corresponding to the skeletal point cloud based on a rigid body animation corresponding to the at least one rigid body model comprises:

constructing an initial skeleton matrix based on the skeleton point cloud, wherein the initial skeleton matrix records initial animation information corresponding to each center point in the first frame of animation;

determining animation information of each rigid body model in each frame of animation based on the model identifier corresponding to the at least one rigid body model and the rigid body animation corresponding to the at least one rigid body model;

Updating the initial skeleton matrix based on the animation information of each frame of animation to obtain a skeleton matrix corresponding to the at least one rigid body model in each frame of animation.

5. The method of claim 4, wherein driving the at least one rigid body model based on a bone matrix corresponding to the bone point cloud to generate a bone animation corresponding to the at least one rigid body model comprises:

in the current frame animation, determining a current skeleton matrix corresponding to the at least one rigid body model from skeleton matrixes corresponding to the skeleton point clouds based on the model identification corresponding to the at least one rigid body model;

updating the animation information of at least one rigid body model in the previous frame of animation based on the current skeleton matrix to obtain the current animation information of at least one rigid body model in the current frame of animation;

a skeletal animation of the at least one rigid body model is generated based on current animation information of the at least one rigid body model.

6. The method of claim 1, wherein generating a skeletal point cloud corresponding to each rigid body model from the target position of the at least one rigid body model comprises:

Determining a first rigid body model and a second rigid body model to be combined from the plurality of rigid body models when the number of the at least one rigid body model is a plurality of;

combining the first rigid body model and the second rigid body model to obtain a target rigid body model;

determining a target position of the target rigid body model according to a center point corresponding to the target rigid body model;

and performing skin operation on the target rigid body model based on the target position of the target rigid body model to obtain a target skeleton point cloud corresponding to the target rigid body model.

7. The method of claim 1, wherein generating a skeletal point cloud corresponding to each rigid body model from the target position of the at least one rigid body model comprises:

determining a rigid body model to be segmented from the at least one rigid body model;

performing segmentation processing on the rigid body model to be segmented to obtain a third rigid body model and a fourth rigid body model;

performing skin operation on the third rigid body model based on the target position of the third rigid body model to obtain a third bone point cloud;

and performing skin operation on the fourth rigid body model based on the target position of the fourth rigid body model to obtain a fourth bone point cloud.

8. A skeletal animation generating device, comprising:

the acquisition module is used for acquiring at least one rigid body model, wherein the at least one rigid body model is a virtual model with a fixed structure;

the point cloud generating module is used for generating skeleton point clouds corresponding to each rigid body model according to the target position of the at least one rigid body model;

the matrix construction module is used for constructing a skeleton matrix corresponding to the skeleton point cloud based on the rigid animation corresponding to the at least one rigid model;

and the animation generation module is used for driving the at least one rigid body model based on the skeleton matrix corresponding to the skeleton point cloud to generate skeleton animation corresponding to the at least one rigid body model, wherein the skeleton matrix is at least used for recording animation information of the rigid body model corresponding to the skeleton matrix, and the animation information at least comprises rotation information, scaling information and offset information of the at least one rigid body model.

9. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, wherein the computer program is arranged to, when run by a processor, perform the method of generating a bone animation according to any of claims 1 to 7.

10. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to run the computer program to perform the method of generating a bone animation as claimed in any of claims 1 to 7.

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