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Multi-volume Renderer

• each volume can be
  • any extent
  • any resolution (# of voxels)
  • any orientation (only translates implemented)

• algorithm - for each pixel
  • determine which volumes intersect viewing ray
  • sample each volume above Nyquist rate
  • integrate/composite active volumes to determine pixel value

• parallelism
  • multi-threaded at the pixel level
  • runs on Cray MTA, IBM SP, Sun E10K, SGI