%0 Journal Article
%T Parallel Rendering Based on Optical-mapping Virtual Objects<br>基于光学映射虚物体的并行绘制
%A LI Ya-feng
%A QIN Kai-huai
%A <br>李亚峰
%A 秦开怀
%J 中国图象图形学报
%D 2003
%I 
%X Current rendering algorithms of global illumination models can generate photo-realistic images, but the high computing cost may discourage their applications in walk-through and virtual reality etc. Especially, rendering specular reflections and refractions is always a problem in computer graphics community. In this paper, virtual optical-mapping objects are introduced, and a unified method for generating virtual objects of reflections and refractions is proposed. The virtual objects are treated in the same way as real objects in the scene, so the reflection and refraction images can be rendered by the graphical hardware. Cluster based connected PCs is utilizes as parallel platform, and task scheme and load balance are discussed. Virtual objects are generated by CPU and rendered by graphical hardware. So, this method utilizes simultaneously both CPUs and graphical hardware on nodes of clusters to achieve high performance rendering. In the last, examples demonstrate this method is powerful for interactive applications such as real-time walk-throughs in buildings, animation and virtual reality.
%K Virtual objects
%K Clusters
%K Hardware-accelerated rendering
%K Parallel rendering<br>计算机图象处理(520·6040)
%K 虚物体
%K 集群
%K 硬件加速的绘制
%K 并行绘制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=0B82414B5A53851D&yid=D43C4A19B2EE3C0A&vid=5D311CA918CA9A03&iid=59906B3B2830C2C5&sid=71F658B36F902583&eid=A67C4D140E145357&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=14