LOD
LOD (Level Of Detail) uses camera-to-object distance to switch among contained child levels. (Contained nodes are now called 'children' rather than 'level', for consistent naming among all GroupingNodeType nodes.) LOD range values go from near to far (as child geometry gets simpler for better performance). For n range values, you must have n+1 children levels! Only currently selected children level is rendered, but all levels continue to send/receive events. Hint: can add less then;WorldInfo info='null node'/greater then; as nonrendering final child. Hint: insert a Shape node before adding geometry or Appearance.
Inheritance
Code
XML encoding
<LOD center='0 0 0' range='' whichLevel='-1' forceTransitions='FALSE' logFeature='' showBBox='FALSE' bboxCenter='0 0 0' bboxSize='-1 -1 -1' render='TRUE' />
Classic encoding
LOD {
center 0 0 0
range []
whichLevel -1
forceTransitions FALSE
logFeature [""]
showBBox FALSE
bboxCenter 0 0 0
bboxSize -1 -1 -1
render TRUE
}
Interface
Filter: X3D only | Avalon only | All
| id | Name | DataType | PartType | Default | ValueType | Description |
|---|---|---|---|---|---|---|
 |
addChildren | MFNode | inputOnly | The addChildren event appends nodes to the children field of a grouping node. Any nodes passed to the addChildren inputOnly field that are already in the children list of the grouping node are ignored | ||
 |
bboxCenter | SFVec3f | initializeOnly | 0 0 0 | Bounding box center: position offset from origin of local coordinate system. | |
|
bboxSize | SFVec3f | initializeOnly | -1 -1 -1 | Bounding box size: automatically calculated, can be specified as an optimization or constraint. | |
|
center | SFVec3f | initializeOnly | 0 0 0 | Position offset from origin of local coordinate system. | |
|
children | MFNode | inputOutput | Node | field that contains a list of children nodes | |
 |
level_changed | SFInt32 | outputOnly | -1 | Identifies which level was activated for display. | |
 |
metadata | SFNode | inputOutput | MetadataObject | container for payload metadata inside MetadataSet element | |
 |
range | MFFloat | initializeOnly | [0,infinity] Camera-to-object distance transitions for each child level, where range values go from near to far. For n range values, you must have n+1 child levels! Hint: can add less then;WorldInfo info='null node'/greater then; as nonrendering final child. | ||
|
removeChildren | MFNode | inputOnly | The removeChildren event removes nodes from the children fieldof the grouping node . Any nodes in the removeChildren event that are not in the children list of the grouping node are ignored |