javax.media.j3d
Class ShaderAttribute

java.lang.Object
  javax.media.j3d.SceneGraphObject
      javax.media.j3d.NodeComponent
          javax.media.j3d.ShaderAttribute

Direct Known Subclasses:

ShaderAttributeBinding, ShaderAttributeObject

public abstract class ShaderAttribute
extends NodeComponent

The ShaderAttribute object encapsulates a uniform attribute for a shader programs. Uniform attributes (variables) are those attributes whose values are constant during the rendering of a primitive. Their values may change from primitive to primitive, but are constant for each vertex (for vertex shaders) or fragment (for fragment shaders) of a single primitive. Examples of uniform attributes include a transformation matrix, a texture map, lights, lookup tables, etc.

There are two ways in which values can be specified for uniform attributes: explicitly, by providing a value; and implicitly, by defining a binding between a Java 3D system attribute and a uniform attribute. This functionality is provided by two subclasses of ShaderAttribute as follows:

• ShaderAttributeObject, in which attributes are expressed as (attrName, value) pairs, is used for explicitly defined attributes
• ShaderAttributeBinding, in which attributes are expressed as (attrName, j3dAttrName) pairs, is used for implicitly defined, automatically tracked attributes

Since:

Java 3D 1.4

See Also:

ShaderAttributeSet, ShaderProgram

Method Summary

java.lang.String

getAttributeName() Retrieves the name of this shader attribute.

Methods inherited from class javax.media.j3d.NodeComponent

cloneNodeComponent, cloneNodeComponent, duplicateNodeComponent, duplicateNodeComponent, getDuplicateOnCloneTree, setDuplicateOnCloneTree

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString, updateNodeReferences

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getAttributeName

public java.lang.String getAttributeName()

Retrieves the name of this shader attribute.

Returns:

the name of this shader attribute