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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Sun Jun 23 01:50:20 PDT 2002 --><TITLE>ExponentialFog (Java 3D API)</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="ExponentialFog (Java 3D API)";}</SCRIPT><BODY BGCOLOR="white" onload="asd();"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/Fog.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="ExponentialFog.html" TARGET="_top"><B>NO FRAMES</B></A> <SCRIPT> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT><A HREF="../../../allclasses-noframe.html" TARGET=""><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><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.j3d</FONT><BR>Class ExponentialFog</H2><PRE>java.lang.Object | +--<A HREF="../../../javax/media/j3d/SceneGraphObject.html">javax.media.j3d.SceneGraphObject</A> | +--<A HREF="../../../javax/media/j3d/Node.html">javax.media.j3d.Node</A> | +--<A HREF="../../../javax/media/j3d/Leaf.html">javax.media.j3d.Leaf</A> | +--<A HREF="../../../javax/media/j3d/Fog.html">javax.media.j3d.Fog</A> | +--<B>javax.media.j3d.ExponentialFog</B></PRE><HR><DL><DT>public class <B>ExponentialFog</B><DT>extends <A HREF="../../../javax/media/j3d/Fog.html">Fog</A></DL><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><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></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_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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Fog.html">Fog</A></B></TD></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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Node.html">Node</A></B></TD></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_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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></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">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">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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/j3d/Node.html">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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Fog.html">Fog</A></B></TD></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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">⌨️ 快捷键说明
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