VolumeRendering

Cutting Planes

Cross Section Example | | Tetrahedra

Cut of an arbitrary plane with a unit volume:

  • polygon with 3 to 6 corners
  • view-dependent

  • Vorteile:
    • Interactive manipulation of the plane.
    • No restriction to axis-aligned planes.
  • Disadvatages:
    • no simple manual positioning of the plane (parametrized by pivot point and normal)
    • 8 bit quantisation artifacts.
    • 16 bit 3D textures available on graphics hardware, but much slower.
    • Limited texture memory.
      • NVIDIA GeForce GTX resp. ATI Radeon have 512MB to 1GB and up.
      • A 16 bit volum with 512×512×600 voxels already has 300 MB.
      • A $1024^3$ 16 bit volume even has 2 GB.


Cross Section Example | | Tetrahedra

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