instantreality 1.0

Component:
Navigation
Status:
fully implemented
Structure type:
concrete
Standard:
X3D2.0

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 the currently selected children level is rendered, but all levels continue to send/receive events.

Inheritance

Code

XML encoding
<LOD center='0 0 0'
range=''
whichLevel='-1'
forceTransitions='FALSE'
triggerName='Synchronize'
bboxCenter='0 0 0'
bboxSize='-1 -1 -1'
render='TRUE'
showBBox='FALSE'
logFeature=''
 />
Classic encoding
LOD {
	center 0 0 0
	range []
	whichLevel -1
	forceTransitions FALSE
	triggerName "Synchronize"
	bboxCenter 0 0 0
	bboxSize -1 -1 -1
	render TRUE
	showBBox FALSE
	logFeature [""]
}

Interface

Filter: X3D only | Avalon only | All
id Name DataType PartType Default ValueType Description
SFVec3f center SFVec3f initializeOnly 0 0 0 Position offset from origin of local coordinate system.
MFFloat 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 an empty Group node as nonrendering final child.
SFInt32 level_changed SFInt32 outputOnly -1 Identifies which level was activated for display.
MFNode children MFNode inputOutput Node field that contains a list of children nodes
MFNode 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
MFNode 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
SFVec3f bboxCenter SFVec3f initializeOnly 0 0 0 Bounding box center: position offset from origin of local coordinate system.
SFVec3f bboxSize SFVec3f initializeOnly -1 -1 -1 Bounding box size: automatically calculated, can be specified as an optimization or constraint.
SFNode metadata SFNode inputOutput MetadataObject container for payload metadata inside MetadataSet element