| java.lang.Object
 javax.media.j3d.SceneGraphObject
javax.media.j3d.Node
javax.media.j3d.Group
javax.media.j3d.OrderedGroup
javax.media.j3d.DecalGroup
| DecalGroup | | public class DecalGroup extends OrderedGroup (Code) | | The DecalGroup node is an ordered group node used for defining decal
geometry on top of other geometry. The DecalGroup node specifies that
its children should be rendered in index order and that they generate
coplanar objects. Examples of this include: painted decals or text on
surfaces, a checkerboard layered on top of a table, etc.
The first child, at index 0, defines the surface on top of which all
other children are rendered. The geometry of this child must encompass
all other children, otherwise incorrect rendering may result. The
polygons contained within each of the children must be facing the same
way. If the polygons defined by the first child are front facing, then
all other surfaces should be front facing. In this case, the polygons
are rendered in order. The renderer can use knowledge of the coplanar
nature of the surfaces to avoid
Z-buffer collisions. If the main surface is back facing then all other
surfaces should be back facing, and need not be rendered (even if back
face culling is disabled).
Note that using the DecalGroup node does not guarantee that Z-buffer
collisions are avoided. An implementation of Java 3D may fall back to
treating DecalGroup node as an OrderedGroup node.
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| Constructor Summary | |
| public | DecalGroup()
Constructs and initializes a new DecalGroup node object. |
| Method Summary | |
| public Node | cloneNode(boolean forceDuplicate)
Used to create a new instance of the node. | | void | createRetained()
Creates the retained mode DecalGroupRetained object that this
DecalGroup component object will point to. |
| DecalGroup | | public DecalGroup()(Code) | | Constructs and initializes a new DecalGroup node object.
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| cloneNode | | public Node cloneNode(boolean forceDuplicate)(Code) | | Used to create a new instance of the node. This routine is called
by cloneTree to duplicate the current node.
Parameters:
forceDuplicate - when set to true, causes theduplicateOnCloneTree flag to be ignored. Whenfalse, the value of each node'sduplicateOnCloneTree variable determines whetherNodeComponent data is duplicated or copied.
See Also: Node.cloneTree
See Also: Node.cloneNode
See Also: Node.duplicateNode
See Also: NodeComponent.setDuplicateOnCloneTree |
| createRetained | | void createRetained()(Code) | | Creates the retained mode DecalGroupRetained object that this
DecalGroup component object will point to.
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| Fields inherited from javax.media.j3d.OrderedGroup | final public static int ALLOW_CHILD_INDEX_ORDER_READ(Code)(Java Doc)
final public static int ALLOW_CHILD_INDEX_ORDER_WRITE(Code)(Java Doc)
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