NPU based image composition and display in parallel rendering system
In real time rendering of massive data sets,it is a common solution to use PC clusters for the real time parallel rendering.The image composition of all the results in parallel rendered by the cluster computers is a notorious bottleneck in sort last clustered rendering systems.This paper presented a network processing unit(NPU) based image composition method and a sort last distributed rendering system,called NPUPR.The experimental results show that the NPU based scheme can get three times faster frame rate than the 'direct send scheme' in the case of four rendering nodes.This paper also presented a scheme to extend four rendering nodes to more rendering nodes.Analysis shows that,the system is fully scalable with negligible penalty in frame rate.