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.SceneGraphObject |
clearCapability, clearCapabilityIsFrequent, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString, updateNodeReferences |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
getAttributeName
public java.lang.String getAttributeName()
- Retrieves the name of this shader attribute.
- Returns:
- the name of this shader attribute