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Hierarchical rendering of trees from Precomputed Multi-Layer Z-Buffers

  • Author(s): Max, Nelson
  • Editor(s): Pueyo, X.;
  • Schroeder, P.
  • et al.
Abstract

Chen and Williams[2]show how precomputed z-buffer images from different fixed viewing positions can be reprojected to produce an image for a new viewpoint. Here images are precomputed for twigs and branches at various levels in the hierarchical structure of a tree,and adaptively combined,depending on the position of the new viewpoint. The precomputed images contain multiple z levels to avoid missing pixels in the reconstruction, subpixel masks for antialiasing, and colors and normals for shading after reprojection.

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