Multiprocessor experiments for high-speed ray tracing

  • Authors:
  • Severin Gaudet;Richard Hobson;Pradeep Chilka;Thomas Calvert

  • Affiliations:
  • Simon Fraser Univ., Burnaby, B.C., Canada;Simon Fraser Univ., Burnaby, B.C., Canada;Simon Fraser Univ., Burnaby, B.C., Canada;Simon Fraser Univ., Burnaby, B.C., Canada

  • Venue:
  • ACM Transactions on Graphics (TOG)
  • Year:
  • 1988

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Abstract

New single- and multiprocessor models for ray tracing are presented. Important features are (1) the use of custom VLSI building blocks, (2) the use of a modified hierarchical data-structure-based ray tracing algorithm with three disjoint data sets, and (3) scene access through adaptive information broadcasting. A modular design is presented that permits incremental performance enhancement up to two orders of magnitude over conventional minicomputers or workstations. Ray tracing is a surprisingly good application for a shared bus architecture because of the computational complexity of intersecting light rays with graphics objects.