Full list
VRML Interactive Tutorial
Introduction
VRML File Structure
Drawing: Shape node
Geometry Nodes:
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Box
Sphere Cone Cylinder PointSet IndexedLineSet IndexedFaceSet Extrusion ElevationGrid Example: Chessboard Text FontStyle |
| Material
Textures
Texture Transform |
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Directional Light
Point Light Spot Light |
Hierarchical Node Structures
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Group
Transform Collision Anchor Billboard Switch |
Defining and Instancing Nodes
Defining Levels of Detail
Events in VRML
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Creating Paths between events:
ROUTE
Generating Events based on Timers or User Actions
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Color
Coordinate Normal Orientation Position Scalar Example |
|
Sound
AudioClip |
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Who Am I: NavigationInfo
Where Am I: ViewPoint |
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Background
Fog |
| WorldInfo |
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Coordinate
Color Normal |
Bindable Nodes
Bindable nodes are a special type of node in the sense that only one of each can be active at a certain type. Bindable nodes provide information about the environment and the user. The following nodes are bindable nodes:
When the scene is loaded the first of each of these nodes to be found becomes active, i.e. is bound (nodes within inlined files do not count). The bound nodes are put on the top of a stack. There is a stack for each type of node.
When a node is bound it generates the boolean event isBound with the value TRUE.
In order to bound a node, for instance to change the background, an event set_Bind with the value TRUE should be routed to the node. The newly bounded node goes to the top of the respective stack. The previously bound node sends an event isBound with value FALSE, and the newly bound node sends an isBound event with value TRUE.
In order to unbind a node an event set_Bind with the value FALSE should be sent to the respective node. The unbounded node sends an event isBound with value FALSE and is pushed from the top of the stack. The node which is now in the top of the stack becomes the active node, i.e. it becomes bounded, and it sends an event isBound with value TRUE.
If a node which is not bound but is in the stack receives an event set_Bind with the value FALSE, the node is removed from the stack. If the node is not in the stack the event is ignored.
