Research On The Behavior Model Of Virtual Characters In Virtual Meeting

In the virtual environment,modeling the behavior of virtual intelligent characters to help improve various simulations has been widely used in interactive applications,military simulation training,serious games and many other fields.With the gradual development of virtual reality technology and more and more application requirements,combining graphics,virtual reality,psychology and other technologies in virtual environment to establish a set of ideal virtual role behavior model has become one of the key directions of virtual reality technology research.This paper focuses on how the behavioral models of virtual characters function in the virtual meeting environment and bring help to user roles.The main research contents of this thesis include:(1)Study the characteristics of virtual reality conferences and virtual character behaviors,put forward the overall framework of virtual character behaviors in virtual conferences,and introduce the key technologies for virtual conferences and virtual character behaviors to achieve,the whole process of virtual character behavior is analyzed,and the internal specific modules are explained.(2)The behavior modeling of virtual characters is studied.In the method of designing virtual character behavior models based on behavior trees,the visual and auditory perception design methods of virtual characters are proposed,and the behavior of virtual characters in the specific environment of virtual meeting is designed.Behaviors such as starting a dialogue with the user role,providing a presentation to the user role,closing the noise in the virtual scene,etc.,build a virtual role behavior model with perceptual decision-making behavior,and use the behavior tree to represent it.(3)A virtual conference system that conforms to simulation is built.According to the virtual character behavior model analyzed and designed above,the behavior model of virtual characters is realized and tested and verified in the virtual conference system.Finally,the performance and integrity of the entire simulation system are tested and analyzed to verify the effectiveness of the system.The simulation experiment results show that the virtual character can effectively perceive and respond to the changing information of the external virtual environment and the user's character and make corresponding behavioral decisions,so as to optimize the experience of the user's character in the virtual meeting environment,provide more convenience and help for user roles in virtual meeting scenarios.