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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 16:20:08 PST 2006 --><TITLE>TransparencyAttributes (Java 3D 1.5.0)</TITLE><META NAME="keywords" CONTENT="javax.media.j3d.TransparencyAttributes class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="TransparencyAttributes (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/TransformInterpolator.html" title="class in javax.media.j3d"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/TransparencyInterpolator.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/TransparencyAttributes.html" target="_top"><B>FRAMES</B></A> <A HREF="TransparencyAttributes.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> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <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 TransparencyAttributes</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 "><B>javax.media.j3d.TransparencyAttributes</B></PRE><HR><DL><DT><PRE>public class <B>TransparencyAttributes</B><DT>extends <A HREF="../../../javax/media/j3d/NodeComponent.html" title="class in javax.media.j3d">NodeComponent</A></DL></PRE><P>The TransparencyAttributes object defines all attributes affecting transparency of the object. The transparency attributes are:<p> <ul> <li>Transparency mode - defines how transparency is applied to this Appearance component object:</li><p> <ul> <li>FASTEST - uses the fastest available method for transparency.</li><p> <li>NICEST - uses the nicest available method for transparency.</li><p> <li>SCREEN_DOOR - uses screen-door transparency. This is done using an on/off stipple pattern in which the percentage of transparent pixels is approximately equal to the value specified by the transparency parameter.</li><p> <li>BLENDED - uses alpha blended transparency. The blend equation is specified by the srcBlendFunction and dstBlendFunction attributes. The default equation is: <ul> <code>alpha<sub><font size=-1>src</font></sub>*src + (1-alpha<sub><font size=-1>src</font></sub>)*dst</code> </ul> where <code>alpha<sub><font size=-1>src</font></sub></code> is <code>1-transparency</code>. When this mode is used with a Raster object or with a Geometry that contains per-vertex colors with alpha, the alpha values in the Raster's image or in the Geometry's per-vertex colors are combined with the transparency value in this TransparencyAttributes object to perform blending. In this case, the alpha value used for blending at each pixel is: <ul> <code>alpha<sub><font size=-1>src</font></sub> = alpha<sub><font size=-1>pix</font></sub> * (1-transparency)</code>. </ul> </li><p> <li>NONE - no transparency; opaque object.</li><p> </ul> <li>Transparency value - the amount of transparency to be applied to this Appearance component object. The transparency values are in the range [0.0, 1.0], with 0.0 being fully opaque and 1.0 being fully transparent.</li><p> <li>Blend function - used in blended transparency and antialiasing operations. The source function specifies the factor that is multiplied by the source color. This value is added to the product of the destination factor and the destination color. The default source blend function is BLEND_SRC_ALPHA. The source blend function is one of the following:</li><p> <ul> <li>BLEND_ZERO - the blend function is <code>f = 0</code></li> <li>BLEND_ONE - the blend function is <code>f = 1</code></li> <li>BLEND_SRC_ALPHA - the blend function is <code>f = alpha<sub><font size=-1>src</font></sub></code></li> <li>BLEND_ONE_MINUS_SRC_ALPHA - the blend function is <code>f = 1 - alpha<sub><font size=-1>src</font></sub></code></li> <li>BLEND_DST_COLOR - the blend function is <code>f = color<sub><font size=-1>dst</font></sub></code></li> <li>BLEND_ONE_MINUS_DST_COLOR - the blend function is <code>f = 1 - color<sub><font size=-1>dst</font></sub></code></li> <li>BLEND_SRC_COLOR - the blend function is <code>f = color<sub><font size=-1>src</font></sub></code></li> <li>BLEND_ONE_MINUS_SRC_COLOR - the blend function is <code>f = 1 - color<sub><font size=-1>src</font></sub></code></li> </ul> </ul><P><P><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/TransparencyAttributes.html#ALLOW_BLEND_FUNCTION_READ">ALLOW_BLEND_FUNCTION_READ</A></B></CODE><BR> Specifies that this TransparencyAttributes object allows reading its blend function.</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/TransparencyAttributes.html#ALLOW_BLEND_FUNCTION_WRITE">ALLOW_BLEND_FUNCTION_WRITE</A></B></CODE><BR> Specifies that this TransparencyAttributes object allows writing its blend function.</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/TransparencyAttributes.html#ALLOW_MODE_READ">ALLOW_MODE_READ</A></B></CODE><BR> Specifies that this TransparencyAttributes object allows reading its transparency mode component information.</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/TransparencyAttributes.html#ALLOW_MODE_WRITE">ALLOW_MODE_WRITE</A></B></CODE><BR> Specifies that this TransparencyAttributes object allows writing its transparency mode component information.</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/TransparencyAttributes.html#ALLOW_VALUE_READ">ALLOW_VALUE_READ</A></B></CODE><BR> Specifies that this TransparencyAttributes object allows reading its transparency 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/TransparencyAttributes.html#ALLOW_VALUE_WRITE">ALLOW_VALUE_WRITE</A></B></CODE><BR> Specifies that this TransparencyAttributes object allows writing its transparency 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/TransparencyAttributes.html#BLEND_DST_COLOR">BLEND_DST_COLOR</A></B></CODE><BR> Blend function: <code>f = color<sub><font size=-1>dst</font></sub></code>.</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/TransparencyAttributes.html#BLEND_ONE">BLEND_ONE</A></B></CODE><BR> Blend function: <code>f = 1</code>.</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/TransparencyAttributes.html#BLEND_ONE_MINUS_DST_COLOR">BLEND_ONE_MINUS_DST_COLOR</A></B></CODE><BR> Blend function: <code>f = 1-color<sub><font size=-1>dst</font></sub></code>.</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/TransparencyAttributes.html#BLEND_ONE_MINUS_SRC_ALPHA">BLEND_ONE_MINUS_SRC_ALPHA</A></B></CODE><BR> Blend function: <code>f = 1-alpha<sub><font size=-1>src</font></sub></code>.</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/TransparencyAttributes.html#BLEND_ONE_MINUS_SRC_COLOR">BLEND_ONE_MINUS_SRC_COLOR</A></B></CODE><BR> Blend function: <code>f = 1-color<sub><font size=-1>src</font></sub></code>.</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/TransparencyAttributes.html#BLEND_SRC_ALPHA">BLEND_SRC_ALPHA</A></B></CODE><BR> Blend function: <code>f = alpha<sub><font size=-1>src</font></sub></code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD>⌨️ 快捷键说明
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