赵伟

摘 要： 针对传统基于进化计算的三维动漫人物设计方法存在表情僵硬、行动不灵活的缺点，提出基于VR技术的动漫人物三维设计方法。其从客观存在的物理层面与主体审美的精神层面分析虚拟现实观，基于虚拟现实观图解，融合VR技术与动漫人物三维设计技术，获取三维动漫虚拟系统设计流程。通过鼠标双击地面的形式促使动漫人物在场景中行走，把文本输入到文本框中，实现三维动漫人物相互沟通式漫游；设置虚拟动漫人物角色运动、碰撞检测等基本属性，确保动漫人物能够自动计算障碍物的躲避路径。通过对相机实施动漫人物跟踪模式、飞行操作模式、双重模式的设置，确保人物通过控制相机实现动漫场景的漫游。实验结果表明，所提方法设计的动漫人物行动灵活、表情生动逼真、用户满意度高。

关键词： VR技术； 动漫人物； 三维设计； 碰撞检测； 虚拟现实观； 相机控制

中图分类号： TN911.23?34； J218.7 文献标识码： A 文章编号： 1004?373X（2018）16?0172?04

Abstract： In allusion to the disadvantages of rigid expression and inflexible actions existing in the traditional 3D cartoon character design method based on evolutionary computation， a cartoon character 3D design method based on VR technology is proposed. The virtual reality view is analyzed from the physical level of objective reality and the spiritual level of subjective aesthetic. The design process of the 3D animation virtual system is obtained on the basis of virtual reality view diagrammatization and by integrating the VR technology with the cartoon character 3D design technology. Cartoon characters are made to walk in the scene by using the form of double clicking the ground， and texts are input into a text box， so as to realize intercommunicated roaming of 3D cartoon characters. Virtual cartoon character movement， collision detection and other basic properties are set to ensure that cartoon characters can automatically calculate the path to avoid obstacles. The double modes of cartoon character tracking mode and flight operation mode are set for the camera to ensure that the cartoon scene roaming can be realized by the character′s control of the camera. The experimental results show that the cartoon characters designed by the proposed method are flexible in action， vivid in expression and have high user satisfaction.

Keywords： VR technology； cartoon character； 3D design； collision detection； virtual reality view； camera control

0 引 言

伴随着数字化信息社会的到来，虚拟现实技术应运而生且被广泛的应用[1]。虚拟现实技术是通过触觉、视觉、听觉等感知活动呈现出真实、立体的画面，来满足人们对于虚幻的体验、好奇心的解答等需求。由于虚拟现实技术的交互性、自主性等特点，其多应用在医学模拟手术、娱乐观影体验、室内装修效果展示以及三维动漫设计等领域。同样数字信息技术的发展带动了动漫产业的繁荣，动漫是我国文化产业的重要组成部分，动漫三维设计在网络游戏、卡通动画、多媒体产品方面应用较广，是经济发展的重要力量。……