%0 Journal Article
%T Application study of environment mapping in VR systems<br>环境贴图在VR系统中的应用研究
%A AI Zu-liang
%A ZHANG Li-min
%A <br>艾祖亮
%A 张立民
%J 计算机应用
%D 2007
%I 
%X To realize the realistic rendering of the scene in applying environment mapping to VR systems, an approach to fast calculating diffuse environment maps was proposed starting from the analysis of spherical harmonics. To simplify the filtering of environment maps for glossy reflections, we decided to use a cube map representation together with a simple box-filter instead of the Phong cosine kernel. In the end, we achieved fast rendering by generating a mip-map of the specular environment map. The experimental result shows that this technique realizes fast rendering of diffuse and glossy reflections and is well-suited for virtual reality applications.
%K environment maps
%K VR systems
%K Bidirctional Reflectance Distribution Function (BRDF)
%K spherical harmonics
%K box-filter<br>环境纹理图
%K VR系统
%K 双向反射分布函数
%K 球面调和函数
%K 箱式滤波器
%K 环境贴图
%K 系统
%K 现实应用
%K 研究
%K systems
%K mapping
%K environment
%K study
%K 虚拟
%K 快速绘制
%K 物体
%K 实验
%K 绘制效率
%K 分级
%K 光照环境
%K 图表示
%K 纹理图
%K 立方体
%K 实现阶段
%K 快速计算方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD2743051210AF8966372EA98E&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=0B39A22176CE99FB&sid=8C8D895E58E44DBB&eid=8CE1095CD639AEF4&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=13