计算机工程

• 图形图像处理 • 上一篇    下一篇

混合场景中阴影绘制方法研究

陈国栋,叶东文,党琪琪   

  1. (福州大学物理与信息工程学院,福州 350116)
  • 收稿日期:2014-12-30 出版日期:2016-02-15 发布日期:2016-01-29
  • 作者简介:陈国栋(1979-),男,副研究员、博士,主研方向为图像分析与处理、计算机图形学;叶东文、党琪琪,硕士研究生。
  • 基金项目:
    福建省自然科学基金资助项目(2013J05090)。

Research on Shadow Rendering Method in Hybrid Scene

CHEN Guodong,YE Dongwen,DANG Qiqi   

  1. (College of Physics and Information Engineering,Fuzhou University,Fuzhou 350116,China)
  • Received:2014-12-30 Online:2016-02-15 Published:2016-01-29

摘要:

为使基于远程与本地绘制的场景融合后更具真实感,结合移动终端场景简单、对象交互性强等特点,提出一种新的阴影绘制方法。服务器端采用平行分割阴影映射和百分比渐进滤波(PCF)算法使绘制出的阴影在真实感与实时性之间达到平衡,移动终端利用阴影图和PCF算法完成阴影绘制。根据服务器端和移动终端场景的实际相对位置关系在移动终端进行场景融合,使呈现出的阴影效果在保持一致性的同时更具真实感。实验结果表明,该方法可在移动终端实现不同场景的无缝融合,具有较高的绘制效率。

关键词: 本地绘制, 远程绘制, 混合场景, 阴影绘制, 无缝融合

Abstract:

In a hybrid scene of local and remote rendering,in order to make the scene more realistic,a shadow rendering method is proposed based on the characteristics of simple mobile terminal scene,and strong object interaction.On the server side,a combination of improved Parallel Split Shadow Mapping(PSSM)and Percentage Closer Filtering(PCF) algorithm is used to improve the unity of the reality and real-time shadow rendering.A combination of classic Shadow Mapping(SM) and PCF algorithm is used to draw a shadow on mobile terminals.Then the integration is done on mobile terminal based on the actual relative position of the two scenes which are processed on server side and mobile side.Experimental results show that the seamless fusion of scene can be realized on the mobile terminal through the proposed method,and it brings higher efficiency when drawing graph.

Key words: local rendering, remote rendering, hybrid scene, shadow rendering, seamless fusion

中图分类号: