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X3D Example Archives: VRML 2.0 Sourcebook, Chapter 25 - Level Of Detail

[1] Figure25.01TorchHighDetail.x3d - Torch (high detail)

The further the viewer can see, the more there is to draw. Note that if a shape is distant, the shape is smaller and the viewer can't see as much detail. So... draw it with less detail. Varying detail with distance reduces initial download time and increases drawing speed.

Increase performance by making multiple levels of shapes: high detail for close up viewing, progressively lower detail for more distant viewing. Group the levels in an LOD node, ordered from high detail to low detail, and using an array of range values to select switching distances .

These X3D scenes are adapted directly from the original VRML 2.0 Sourcebook chapter examples. Also available: VRML 2.0 Sourcebook course notes.

Figure 25.04 Three Torches Side By Side

Figure 25.12 Dungeon Rooms With Sliding Doors

12 X3D Scenes      25 Viewpoint Snapshots
Figure 25.01 Torch High Detail       [1] Figure25.01TorchHighDetail.x3d - Torch (high detail)

  [2] Figure25.01TorchHighDetail.x3d - (default X3D view from 0 0 10)

Figure 25.02 Torch Medium Detail       [3] Figure25.02TorchMediumDetail.x3d - Torch (medium detail)

  [4] Figure25.02TorchMediumDetail.x3d - (default X3D view from 0 0 10)

Figure 25.03 Torch Low Detail       [5] Figure25.03TorchLowDetail.x3d - Torch (low detail)

  [6] Figure25.03TorchLowDetail.x3d - (default X3D view from 0 0 10)

Figure 25.04 Three Torches Side By Side      [7] Figure25.04ThreeTorchesSideBySide.x3d - Three torches, high/medium/low detail
  [8] Figure25.04ThreeTorchesSideBySide.x3d - (default X3D view from 0 0 10)

Figure 25.05 Three Torches Single LOD       [9] Figure25.05ThreeTorchesSingleLOD.x3d - 20m no-detail torch - zoom in!

  [10] Figure25.05ThreeTorchesSingleLOD.x3d - 10m low-detail torch

  [11] Figure25.05ThreeTorchesSingleLOD.x3d - 5m medium-detail torch

  [12] Figure25.05ThreeTorchesSingleLOD.x3d - 2m high-detail torch

  [13] Figure25.05ThreeTorchesSingleLOD.x3d - (default X3D view from 0 0 10)

Figure 25.06 Dungeon Room Floor       [14] Figure25.06DungeonRoomFloor.x3d - Dungeon floor

  [15] Figure25.06DungeonRoomFloor.x3d - (default X3D view from 0 0 10)

Figure 25.07 Dungeon Room Wall       [16] Figure25.07DungeonRoomWall.x3d - Dungeon wall

  [17] Figure25.07DungeonRoomWall.x3d - (default X3D view from 0 0 10)

Figure 25.08 Dungeon Room       [18] Figure25.08DungeonRoom.x3d - Dungeon room

  [19] Figure25.08DungeonRoom.x3d - (default X3D view from 0 0 10)

Figure 25.09 Two Dungeon Rooms With LODHiding       [20] Figure25.09TwoDungeonRoomsWithLODHiding.x3d - Dungeon room

  [21] Figure25.09TwoDungeonRoomsWithLODHiding.x3d - (default X3D view)

Figure 25.10 Dungeon Wall With Doorway       [22] Figure25.10DungeonWallWithDoorway.x3d - Dungeon door

  [23] Figure25.10DungeonWallWithDoorway.x3d - (default X3D view from 0 0 10)

Figure 25.11 Dungeon Door       [24] Figure25.11DungeonDoor.x3d - (default X3D view from 0 0 10)

Figure 25.1 2Dungeon Rooms With Sliding Doors       [25] Figure25.12DungeonRoomsWithSlidingDoors.x3d - Click door for next dungeon room

  [26] Figure25.12DungeonRoomsWithSlidingDoors.x3d - (default X3D view)

 

This viewpoint slideshow is online at
http://www.web3d.org/x3d/content/examples/Vrml2.0Sourcebook/Chapter25-LevelOfDetail/viewpointSlideshow.html

Viewpoint image version history at
http://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/Vrml2.0Sourcebook/Chapter25-LevelOfDetail/_viewpoints

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