Expression animation generation method and apparatus, storage medium, and electronic apparatus

A computing device comprising one or more processors, memory coupled to the one or more processors and a plurality of programs stored in the memory that, when executed by the one or more processors, cause the computing device to perform a plurality of operations comprising:

• obtaining an object model of a target virtual object;
• adapting the obtained object model to a target skeleton, to obtain an object control model matching the target virtual object by skinning the object model to the target skeleton, the object control model comprising a control vertex and a plurality of control skeletons, each control skeleton being used for controlling a part of an area of the object control model, and the control vertex being an intersection point of the control skeleton;
• adjusting the control vertex and/or the control skeleton in the object control model according to an obtained adjustment instruction, to obtain a plurality of frames of expression frame images of the target virtual object, wherein adjusting the control vertex includes adjusting a control weight of the control vertex by controlling movement and rotation of the control skeleton in the object control model to achieve an objective of adaption according to the obtained adjustment instruction, further including:
• determining, according to the obtained adjustment instruction, a target control vertex and/or a target control skeleton to be adjusted in the object control model;
• controlling a larger range of an area by the target control skeleton when the obtained adjustment instruction includes a larger control weight of the target control skeleton;
• and/or
• adjusting a display location of the target control skeleton;
• and
• generating an expression animation of the target virtual object by using the plurality of frames of expression frame images.

A non-transitory computer readable storage medium storing a plurality of machine readable instructions in connection with a computing device having one or more processors, wherein the plurality of machine readable instructions, when executed by the one or more processors, cause the computing device to perform a plurality of operations including:

• obtaining an object model of a target virtual object;
• adapting the obtained object model to a target skeleton, to obtain an object control model matching the target virtual object by skinning the object model to the target skeleton, the object control model comprising a control vertex and a plurality of control skeletons, each control skeleton being used for controlling a part of an area of the object control model, and the control vertex being an intersection point of the control skeleton;
• adjusting the control vertex and/or the control skeleton in the object control model according to an obtained adjustment instruction, to obtain a plurality of frames of expression frame images of the target virtual object, wherein adjusting the control vertex includes adjusting a control weight of the control vertex by controlling movement and rotation of the control skeleton in the object control model to achieve an objective of adaption according to the obtained adjustment instruction, further including:
• determining, according to the obtained adjustment instruction, a target control vertex and/or a target control skeleton to be adjusted in the object control model;
• controlling a larger range of an area by the target control skeleton when the obtained adjustment instruction includes a larger control weight of the target control skeleton;
• and/or
• adjusting a display location of the target control skeleton;
• and
• generating an expression animation of the target virtual object by using plurality of frames of expression frame images.