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  6.     <title>9.6.┬áSuperNova</title>
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  11.     <link rel="up" href="ch06s09.html" title="9.┬áLight Effects filters" />
  12.     <link rel="prev" href="ch06s09s05.html" title="9.5.┬áSparkle" />
  13.     <link rel="next" href="ch06s10.html" title="10.┬áDistort filters" />
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  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center" id="chaptername">9.┬áLight Effects filters</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch06s09s05.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center" id="sectionname">9.6.┬áSuperNova</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch06s10.html">Next</a></td>
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  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h3 class="title"><a id="plug-in-nova"></a>9.6.┬áSuperNova</h3>
  34.           </div>
  35.         </div>
  36.       </div>
  37.       <a id="id3482757" class="indexterm"></a>
  38.       <div class="mediaobject">
  39.         <img src="../images/filters/filters-light-supernova.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="id3482779"></a>Overview</h4>
  46.             </div>
  47.           </div>
  48.         </div>
  49.         <p>
  50.       This filter is found in 
  51.       <span class="guimenuitem">Image>Filters/Light Effects/Super<span class="accel">N</span>ova</span>.
  52.     </p>
  53.         <p>
  54.       This filter creates a big star reminding a super-nova. It works with RGB and GRAY images. Light 
  55.       effect decreases according to 1/r where r is the distance from star center. 
  56.     </p>
  57.       </div>
  58.       <div class="simplesect" lang="en" xml:lang="en">
  59.         <div class="titlepage">
  60.           <div>
  61.             <div>
  62.               <h4 class="title"><a id="id3482810"></a>Parameter Settings</h4>
  63.             </div>
  64.           </div>
  65.         </div>
  66.         <div class="variablelist">
  67.           <dl>
  68.             <dt>
  69.               <span class="term">Center of SuperNova</span>
  70.             </dt>
  71.             <dd>
  72.               <p>
  73.           You can use input boxes to set horizontal (X) and vertical (Y) coordinates of SuperNova 
  74.           center. You can also click and drag the SuperNova center in <span class="emphasis"><em>preview</em></span>. 
  75.         </p>
  76.               <p>
  77.           <span class="guilabel">Show Cursor</span>: This option brings up a reticle in preview, centered on 
  78.           SuperNova.
  79.         </p>
  80.             </dd>
  81.             <dt>
  82.               <span class="term">More parameters</span>
  83.             </dt>
  84.             <dd>
  85.               <p>
  86.           <span class="guilabel">Color</span>: When you click on the color dwell, 
  87.           you bring up the usual color selector.
  88.         </p>
  89.               <p>
  90.           <span class="guilabel">Radius</span>: This is radius of the SuperNova center (1-100). 
  91.           When you increase the value, you increase the number of central white pixels 
  92.           according to r*r (1, 4, 9...). 
  93.         </p>
  94.               <p>
  95.           <span class="guilabel">Spokes</span>: This is number of rays (1-1024). Each pixel in 
  96.           nova center emit 
  97.           one pixel wide rays. All these rays are more or less superimposed resulting in this 
  98.           glittering effect you get when you move this slider.
  99.         </p>
  100.               <p>
  101.           <span class="guilabel">Random Hue</span>: Colours rays at random. (0-360) value 
  102.           seems to be a range in HSV color circle.
  103.         </p>
  104.             </dd>
  105.           </dl>
  106.         </div>
  107.       </div>
  108.     </div>
  109.     <div class="navfooter">
  110.       <hr />
  111.       <table width="100%" summary="Navigation footer">
  112.         <tr>
  113.           <td width="40%" align="left"><a accesskey="p" href="ch06s09s05.html">Prev</a>┬á</td>
  114.           <td width="20%" align="center">
  115.             <a accesskey="u" href="ch06s09.html">Up</a>
  116.           </td>
  117.           <td width="40%" align="right">┬á<a accesskey="n" href="ch06s10.html">Next</a></td>
  118.         </tr>
  119.         <tr>
  120.           <td width="40%" align="left" valign="top">9.5.┬áSparkle┬á</td>
  121.           <td width="20%" align="center">
  122.             <a accesskey="h" href="index.html">Home</a>
  123.           </td>
  124.           <td width="40%" align="right" valign="top">┬á10.┬áDistort filters</td>
  125.         </tr>
  126.       </table>
  127.     </div>
  128.   </body>
  129. </html>
  130.