Differential Volume Rendering: A Fast Volume Visualization Technique for Flow Animation

  title={Differential Volume Rendering: A Fast Volume Visualization Technique for Flow Animation},
  author={Han-Wei Shen and Christopher R. Johnson},
  booktitle={IEEE Visualization},
We present a direct volume rendering algorithm to speed up volume animation for flow visualizations. Data coherency between consecutive simulation time steps is used to avoid casting rays from those pixels retaining color values assigned to the previous image. The algorithm calculates the differential information among a sequence of 3D volumetric simulation data. At each time step the differential information is used to compute the locations of pixels that need updating and a ray-casting method… CONTINUE READING
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