In distributed computing environment

an important factor which will affect the performance of parallel algorithm is communication bandwidth. This paper presents a parallel volume rendering algorithm using a shear-warp factorization of the viewing Transformation on the local area network of PCs. We fully take use of the overlap of communication and computing to overcome the bottleneck of communication. In many parallel volume rendering algorithm based on object partition

local volume rendering and image composition are divided into two serial processes

in the period of local volume

the communication hardly happen

contrarily

in the period of image composition

the communication is very busy

even communication congest happen

furthermore there are a very big synchronism overhead in this period. The paper take use of Pipeline based on PC

local volume rendering and image composition are executed concurrently

the draw backs above are solved well. Our experiment which is completing on the Pipeline including 16 Pentium shows that communication do not affect the performance of algorithm

and the overheads are very little to rendering time. The paper provide a method for studying low-price

high-efficiency real-time volume rendering system.