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  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>12.2.┬áPlasma</title>
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  11.     <link rel="up" href="ch06s12.html" title="12.┬áRendering filters" />
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  13.     <link rel="next" href="ch06s12s03.html" title="12.3.┬áSolid Noise" />
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  15.   <body>
  16.     <div xmlns="" class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center" id="chaptername">12.┬áRendering filters</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch06s12.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center" id="sectionname">12.2.┬áPlasma</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch06s12s03.html">Next</a></td>
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  29.     <div class="sect2" lang="en" xml:lang="en">
  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h3 class="title"><a id="plug-in-plasma"></a>12.2.┬áPlasma</h3>
  34.           </div>
  35.         </div>
  36.       </div>
  37.       <a id="id3488847" class="indexterm"></a>
  38.       <div class="mediaobject">
  39.         <img src="../images/filters/filters-render-plasma.png" />
  40.       </div>
  41.       <div class="simplesect" lang="en" xml:lang="en">
  42.         <div class="titlepage">
  43.           <div>
  44.             <div>
  45.               <h4 class="title"><a id="id3488879"></a>Overview</h4>
  46.             </div>
  47.           </div>
  48.         </div>
  49.         <div class="informalfigure">
  50.           <div class="mediaobject">
  51.             <img src="../images/filters/examples/plasma1.png" />
  52.             <div class="caption">
  53.               <p>
  54.         Example of a rendered plasma.
  55.       </p>
  56.             </div>
  57.           </div>
  58.         </div>
  59.         <p>
  60.       This filter is found in
  61.       <span class="guimenuitem">Image>Filters/Render/Clouds/<span class="accel">P</span>lasma...</span>
  62.     </p>
  63.         <p>
  64.       Plasma generates colorful clouds, which can be used for
  65.       textures. You control the turbulence in the plasma cloud with
  66.       the Turbulence slide. 
  67.     </p>
  68.         <p>
  69.       All of the colors produced by Plasma are completely saturated.
  70.       Sometimes the strong colors may be distracting, and a more
  71.       interesting surface will appear when you desaturate the image
  72.       using
  73.       <span class="guimenuitem">Layer/Colors/Desaturate</span>.
  74.     </p>
  75.         <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
  76.           <table border="0" summary="Note">
  77.             <tr>
  78.               <td rowspan="2" align="center" valign="top" width="25">
  79.                 <img alt="[Note]" src="../images/note.png" />
  80.               </td>
  81.               <th align="left">Note</th>
  82.             </tr>
  83.             <tr>
  84.               <td colspan="2" align="left" valign="top">
  85.                 <p>
  86.       An enhanced version of the Plasma plugin, called
  87.       <span class="emphasis"><em>Plasma2</em></span>, with many more options and
  88.       parameters, is available from the <a href="http://registry.gimp.org/plugin?id=501" target="_top">Gimp Plugin
  89.       Registry</a>.
  90.       </p>
  91.               </td>
  92.             </tr>
  93.           </table>
  94.         </div>
  95.       </div>
  96.       <div class="simplesect" lang="en" xml:lang="en">
  97.         <div class="titlepage">
  98.           <div>
  99.             <div>
  100.               <h4 class="title"><a id="id3488966"></a>Options</h4>
  101.             </div>
  102.           </div>
  103.         </div>
  104.         <div class="variablelist">
  105.           <dl>
  106.             <dt>
  107.               <span class="term">Random Seed</span>
  108.             </dt>
  109.             <dd>
  110.               <p>
  111.             <span class="guilabel">Random Seed</span> controls the randomization
  112.             element. The <span class="guibutton">Randomize</span> checkbutton will
  113.             set the seed using the hardware clock of the computer.
  114.             There is no reason to use anything else unless you want to
  115.             be able to repeat the exact same pattern of randomization
  116.             on a later occasion.
  117.           </p>
  118.             </dd>
  119.             <dt>
  120.               <span class="term">Turbulence</span>
  121.             </dt>
  122.             <dd>
  123.               <p>
  124.             This parameter controls the complexity of the plasma.
  125.             High values give a hard feeling to the cloud (like an
  126.             abstract oil painting or mineral grains), low values
  127.             produce a softer cloud (like steam, mist or smoke).  The
  128.             range is 0.1 to 7.0. 
  129.           </p>
  130.             </dd>
  131.           </dl>
  132.         </div>
  133.       </div>
  134.     </div>
  135.     <div class="navfooter">
  136.       <hr />
  137.       <table width="100%" summary="Navigation footer">
  138.         <tr>
  139.           <td width="40%" align="left"><a accesskey="p" href="ch06s12.html">Prev</a>┬á</td>
  140.           <td width="20%" align="center">
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  143.           <td width="40%" align="right">┬á<a accesskey="n" href="ch06s12s03.html">Next</a></td>
  144.         </tr>
  145.         <tr>
  146.           <td width="40%" align="left" valign="top">12.┬áRendering filters┬á</td>
  147.           <td width="20%" align="center">
  148.             <a accesskey="h" href="index.html">Home</a>
  149.           </td>
  150.           <td width="40%" align="right" valign="top">┬á12.3.┬áSolid Noise</td>
  151.         </tr>
  152.       </table>
  153.     </div>
  154.   </body>
  155. </html>
  156.