on back w3c Fifth International World Wide Web Conference

i3D: Time-Critical Rendering

  • Adaptive trading of rendering quality with speed
  • Hierarchical culling based on octree spatial subdivision
  • Per object level of detail selection based on relative object importance, computed using projected size on screen
  • Feedback algorithm adjusts LOD selection algorithm parameters to meet timing constraints
  • Per object update rates used to exploit frame coherency and reduce per-frame computation
  • Very large databases can be rendered at interactive speeds
  • Performance comparable to high-end VR systems

    • Virtual Sardinia: A Large-Scale Hypermedia Regional Information System (E.Gobbetti,A.O.Leone)