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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_06) on Wed Dec 13 16:20:07 PST 2006 --><TITLE>ShaderAttributeObject (Java 3D 1.5.0)</TITLE><META NAME="keywords" CONTENT="javax.media.j3d.ShaderAttributeObject class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ShaderAttributeObject (Java 3D 1.5.0)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/media/j3d/ShaderAttributeBinding.html" title="class in javax.media.j3d"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/ShaderAttributeSet.html" title="class in javax.media.j3d"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?javax/media/j3d/ShaderAttributeObject.html" target="_top"><B>FRAMES</B></A> <A HREF="ShaderAttributeObject.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.j3d</FONT><BR>Class ShaderAttributeObject</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/media/j3d/SceneGraphObject.html" title="class in javax.media.j3d">javax.media.j3d.SceneGraphObject</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/media/j3d/NodeComponent.html" title="class in javax.media.j3d">javax.media.j3d.NodeComponent</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/media/j3d/ShaderAttribute.html" title="class in javax.media.j3d">javax.media.j3d.ShaderAttribute</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>javax.media.j3d.ShaderAttributeObject</B></PRE><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../javax/media/j3d/ShaderAttributeArray.html" title="class in javax.media.j3d">ShaderAttributeArray</A>, <A HREF="../../../javax/media/j3d/ShaderAttributeValue.html" title="class in javax.media.j3d">ShaderAttributeValue</A></DD></DL><HR><DL><DT><PRE>public abstract class <B>ShaderAttributeObject</B><DT>extends <A HREF="../../../javax/media/j3d/ShaderAttribute.html" title="class in javax.media.j3d">ShaderAttribute</A></DL></PRE><P>The ShaderAttributeObject class is an abstract class that encapsulates a uniform shader attribute whose value is specified explicitly. This class has concrete subclasses for single-value attributes (ShaderAttributeValue) and array attributes (ShaderAttributeArray). The shader variable <code>attrName</code> is explicitly set to the specified <code>value</code> during rendering. <code>attrName</code> must be the name of a valid uniform attribute in the shader in which it is used. Otherwise, the attribute name will be ignored and a runtime error may be generated. The <code>value</code> must be an instance of one of the allowed classes or an array of one the allowed classes. The allowed classes are: <code>Integer</code>, <code>Float</code>, <code>Tuple{2,3,4}{i,f}</code>, <code>Matrix{3,4}f</code>. A ClassCastException will be thrown if a specified <code>value</code> object is not one of the allowed types. Further, the type of the value is immutable once a ShaderAttributeObject is constructed. Subsequent setValue operations must be called with an object of the same type as the one that was used to construct the ShaderAttributeObject. Finally, the type of the <code>value</code> object must match the type of the corresponding <code>attrName</code> variable in the shader in which it is used. Otherwise, the shader will not be able to use the attribute and a runtime error may be generated.<P><P><DL><DT><B>Since:</B></DT> <DD>Java 3D 1.4</DD><DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/ShaderAttributeSet.html" title="class in javax.media.j3d"><CODE>ShaderAttributeSet</CODE></A>, <A HREF="../../../javax/media/j3d/ShaderProgram.html" title="class in javax.media.j3d"><CODE>ShaderProgram</CODE></A></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ShaderAttributeObject.html#ALLOW_VALUE_READ">ALLOW_VALUE_READ</A></B></CODE><BR> Specifies that this ShaderAttributeObject allows reading its value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ShaderAttributeObject.html#ALLOW_VALUE_WRITE">ALLOW_VALUE_WRITE</A></B></CODE><BR> Specifies that this ShaderAttributeObject allows writing its value.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ShaderAttributeObject.html#getValue()">getValue</A></B>()</CODE><BR> Retrieves the value of this shader attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ShaderAttributeObject.html#getValueClass()">getValueClass</A></B>()</CODE><BR> Retrieves the base class of the value of this shader attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ShaderAttributeObject.html#setValue(java.lang.Object)">setValue</A></B>(java.lang.Object value)</CODE><BR> Sets the value of this shader attribute to the specified value.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.ShaderAttribute"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/ShaderAttribute.html" title="class in javax.media.j3d">ShaderAttribute</A></B></TH>⌨️ 快捷键说明
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