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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 16:20:01 PST 2006 --><TITLE>ExponentialFog (Java 3D 1.5.0)</TITLE><META NAME="keywords" CONTENT="javax.media.j3d.ExponentialFog class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ExponentialFog (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/DistanceLOD.html" title="class in javax.media.j3d"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/Fog.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/ExponentialFog.html" target="_top"><B>FRAMES</B></A> <A HREF="ExponentialFog.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 ExponentialFog</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/Node.html" title="class in javax.media.j3d">javax.media.j3d.Node</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/media/j3d/Leaf.html" title="class in javax.media.j3d">javax.media.j3d.Leaf</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/media/j3d/Fog.html" title="class in javax.media.j3d">javax.media.j3d.Fog</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>javax.media.j3d.ExponentialFog</B></PRE><HR><DL><DT><PRE>public class <B>ExponentialFog</B><DT>extends <A HREF="../../../javax/media/j3d/Fog.html" title="class in javax.media.j3d">Fog</A></DL></PRE><P>The ExponentialFog leaf node extends the Fog leaf node by adding a fog density that is used as the exponent of the fog equation. The density is defined in the local coordinate system of the node, but the actual fog equation will ideally take place in eye coordinates. <P> The fog blending factor, f, is computed as follows: <P><UL> f = e<sup>-(density * z)</sup><P> where <ul>z is the distance from the viewpoint.<br> density is the density of the fog.<P></ul></UL> In addition to specifying the fog density, ExponentialFog lets you specify the fog color, which is represented by R, G, and B color values, where a color of (0,0,0) represents black.<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/ExponentialFog.html#ALLOW_DENSITY_READ">ALLOW_DENSITY_READ</A></B></CODE><BR> Specifies that this ExponentialFog node allows read access to its density 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/ExponentialFog.html#ALLOW_DENSITY_WRITE">ALLOW_DENSITY_WRITE</A></B></CODE><BR> Specifies that this ExponentialFog node allows write access to its density information.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Fog"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Fog.html" title="class in javax.media.j3d">Fog</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Fog.html#ALLOW_COLOR_READ">ALLOW_COLOR_READ</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_COLOR_WRITE">ALLOW_COLOR_WRITE</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_INFLUENCING_BOUNDS_READ">ALLOW_INFLUENCING_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_INFLUENCING_BOUNDS_WRITE">ALLOW_INFLUENCING_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_SCOPE_READ">ALLOW_SCOPE_READ</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_SCOPE_WRITE">ALLOW_SCOPE_WRITE</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Node"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Node.html#ALLOW_AUTO_COMPUTE_BOUNDS_READ">ALLOW_AUTO_COMPUTE_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_AUTO_COMPUTE_BOUNDS_WRITE">ALLOW_AUTO_COMPUTE_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_BOUNDS_READ">ALLOW_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_BOUNDS_WRITE">ALLOW_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_COLLIDABLE_READ">ALLOW_COLLIDABLE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_COLLIDABLE_WRITE">ALLOW_COLLIDABLE_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_LOCAL_TO_VWORLD_READ">ALLOW_LOCAL_TO_VWORLD_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_LOCALE_READ">ALLOW_LOCALE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PARENT_READ">ALLOW_PARENT_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PICKABLE_READ">ALLOW_PICKABLE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PICKABLE_WRITE">ALLOW_PICKABLE_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ENABLE_COLLISION_REPORTING">ENABLE_COLLISION_REPORTING</A>, <A HREF="../../../javax/media/j3d/Node.html#ENABLE_PICK_REPORTING">ENABLE_PICK_REPORTING</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_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>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#ExponentialFog()">ExponentialFog</A></B>()</CODE><BR> Constructs an ExponentialFog node with default parameters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#ExponentialFog(javax.vecmath.Color3f)">ExponentialFog</A></B>(<A HREF="../../../javax/vecmath/Color3f.html" title="class in javax.vecmath">Color3f</A> color)</CODE><BR> Constructs an ExponentialFog node with the specified fog color.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#ExponentialFog(javax.vecmath.Color3f, float)">ExponentialFog</A></B>(<A HREF="../../../javax/vecmath/Color3f.html" title="class in javax.vecmath">Color3f</A> color, float density)</CODE><BR> Constructs an ExponentialFog node with the specified fog color and density.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#ExponentialFog(float, float, float)">ExponentialFog</A></B>(float r, float g, float b)</CODE><BR> Constructs an ExponentialFog node with the specified fog color.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#ExponentialFog(float, float, float, float)">ExponentialFog</A></B>(float r, float g, float b, float density)</CODE><BR> Constructs an ExponentialFog node with the specified fog color and density.</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> <A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#cloneNode(boolean)">cloneNode</A></B>(boolean forceDuplicate)</CODE><BR> Used to create a new instance of the node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#getDensity()">getDensity</A></B>()</CODE><BR> Gets fog density.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/ExponentialFog.html#setDensity(float)">setDensity</A></B>(float density)</CODE><BR> Sets fog density.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Fog"><!-- --></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/Fog.html" title="class in javax.media.j3d">Fog</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Fog.html#addScope(javax.media.j3d.Group)">addScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#getAllScopes()">getAllScopes</A>, <A HREF="../../../javax/media/j3d/Fog.html#getColor(javax.vecmath.Color3f)">getColor</A>, <A HREF="../../../javax/media/j3d/Fog.html#getInfluencingBoundingLeaf()">getInfluencingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Fog.html#getInfluencingBounds()">getInfluencingBounds</A>, <A HREF="../../../javax/media/j3d/Fog.html#getScope(int)">getScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#indexOfScope(javax.media.j3d.Group)">indexOfScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#insertScope(javax.media.j3d.Group, int)">insertScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#numScopes()">numScopes</A>, <A HREF="../../../javax/media/j3d/Fog.html#removeAllScopes()">removeAllScopes</A>, <A HREF="../../../javax/media/j3d/Fog.html#removeScope(javax.media.j3d.Group)">removeScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#removeScope(int)">removeScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#setColor(javax.vecmath.Color3f)">setColor</A>, <A HREF="../../../javax/media/j3d/Fog.html#setColor(float, float, float)">setColor</A>, <A HREF="../../../javax/media/j3d/Fog.html#setInfluencingBoundingLeaf(javax.media.j3d.BoundingLeaf)">setInfluencingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Fog.html#setInfluencingBounds(javax.media.j3d.Bounds)">setInfluencingBounds</A>, <A HREF="../../../javax/media/j3d/Fog.html#setScope(javax.media.j3d.Group, int)">setScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#updateNodeReferences(javax.media.j3d.NodeReferenceTable)">updateNodeReferences</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Node"><!-- --></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/Node.html" title="class in javax.media.j3d">Node</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Node.html#cloneTree()">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(boolean, boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(javax.media.j3d.NodeReferenceTable)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(javax.media.j3d.NodeReferenceTable, boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(javax.media.j3d.NodeReferenceTable, boolean, boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#duplicateNode(javax.media.j3d.Node, boolean)">duplicateNode</A>, <A HREF="../../../javax/media/j3d/Node.html#getBounds()">getBounds</A>, <A HREF="../../../javax/media/j3d/Node.html#getBoundsAutoCompute()">getBoundsAutoCompute</A>, <A HREF="../../../javax/media/j3d/Node.html#getCollidable()">getCollidable</A>, <A HREF="../../../javax/media/j3d/Node.html#getLocale()">getLocale</A>, <A HREF="../../../javax/media/j3d/Node.html#getLocalToVworld(javax.media.j3d.SceneGraphPath, javax.media.j3d.Transform3D)">getLocalToVworld</A>, <A HREF="../../../javax/media/j3d/Node.html#getLocalToVworld(javax.media.j3d.Transform3D)">getLocalToVworld</A>, <A HREF="../../../javax/media/j3d/Node.html#getParent()">getParent</A>, <A HREF="../../../javax/media/j3d/Node.html#getPickable()">getPickable</A>, <A HREF="../../../javax/media/j3d/Node.html#setBounds(javax.media.j3d.Bounds)">setBounds</A>, <A HREF="../../../javax/media/j3d/Node.html#setBoundsAutoCompute(boolean)">setBoundsAutoCompute</A>, <A HREF="../../../javax/media/j3d/Node.html#setCollidable(boolean)">setCollidable</A>, <A HREF="../../../javax/media/j3d/Node.html#setPickable(boolean)">setPickable</A></CODE></TD>⌨️ 快捷键说明
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