shout3d.core
Class Billboard

java.lang.Object
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  +--shout3d.core.Node
        |
        +--shout3d.core.Group
              |
              +--shout3d.core.Billboard

public class Billboard

extends Group

A Billboard node.

Fields inherited from class shout3d.core.Group

children, defaultChildArray, hidden

Constructor Summary

Billboard()
Constructs a default Billboard

Method Summary

float[]	getInverseMatrix() Get the matrix equal to the inverse of this Transform.
float[]	getMatrix() Gets the 4x4 matrix that transforms from local to parent space, based on current field values Note: This matrix may give incorrect results if there are multiple instances of the billboard within the scene.

Methods inherited from class shout3d.core.Group

addChildren, getCameraBBoxMax, getCameraBBoxMin, getLocalBBoxMax, getLocalBBoxMin, getWorldBBoxMax, getWorldBBoxMin, removeChildren

Methods inherited from class shout3d.core.Node

cleanUp, getDEFName, getField, getFieldByIndex, getFieldName, getNumFields, getTypeName, getViewer, isOfType, setDEFName, setViewer

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Billboard

public Billboard()

Constructs a default Billboard

Method Detail

getMatrix

public float[] getMatrix()

Gets the 4x4 matrix that transforms from local to parent space, based on current field values Note: This matrix may give incorrect results if there are multiple instances of the billboard within the scene. The matrix of a billboard is dependant on its orientation with respect to that of the viewpoint for which it is rendered. Hence, if a billboard is instanced, each billboard may have a different matrix, so that each billboard is brought into alignment with the viewpoint's image plane. The matrix returned by this method will be that of the last instance rendered in the scene.

Returns:

the matrix

Overrides:

getMatrix in class Group

getInverseMatrix

public float[] getInverseMatrix()

Get the matrix equal to the inverse of this Transform. Transforms vectors from this node's parent space into its local space. Note: This matrix may give incorrect results if there are multiple instances of the billboard within the scene. The matrix of a billboard is dependant on its orientation with respect to that of the viewpoint for which it is rendered. Hence, if a billboard is instanced, each billboard may have a different matrix, so that each billboard is brought into alignment with the viewpoint's image plane. The matrix returned by this method will be that of the last instance rendered in the scene.

Returns:

the inverse matrix for this transform.

Overrides:

getInverseMatrix in class Group