Parallel volume rendering using binary-swap image composition

Kwan-Liu Ma, James S. Painter, Charles D. Hansen, Michael F. Krogh

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations


This paper presents a divide-and-conquer raytraced vol ume rendering algorithm and a parallel image compositing method along with their implementation and performance on the Connection Machine CM-5 and networked worksta tions This algorithm distributes both the data and the computations to individual processing units to achieve fast high-quality rendering of high-resolution data The volume data, once distributed, is left in place, regardless of viewing position The processing nodes perform local raytracing of their subvolume concurrently. No communication between processing units is needed during this local ray-tracing pro cess A subimage is generated by each processing unit and the final image is obtained by compositing subimages in the proper order, which can be determined a priori. Composition is done in parallel via a new algorithm we call Binary- Swap compositing. Test results on both the CM-5 and a group of networked workstations demonstrate the practical ity of our rendering algorithm and compositing method.

Original languageEnglish (US)
StatePublished - Dec 1 2008
Externally publishedYes
EventACM SIGGRAPH ASIA 2008 Courses, SIGGRAPH Asia'08 - Singapore, Singapore
Duration: Dec 10 2008Dec 13 2008


OtherACM SIGGRAPH ASIA 2008 Courses, SIGGRAPH Asia'08

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Human-Computer Interaction
  • Media Technology


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