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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>3.3.9.┬áConvolver</title>
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  12.     <link rel="previous" href="ch03s03s03s08.html" title="3.3.8.┬áClone Tool" />
  13.     <link rel="next" href="ch03s03s03s10.html" title="3.3.10.┬áDodge or Burn" />
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  15.   <body>
  16.     <div class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center">3.3.9.┬áConvolver</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch03s03s03s08.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center">3.3.┬áPaint Tools</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch03s03s03s10.html">Next</a></td>
  25.         </tr>
  26.       </table>
  27.       <hr />
  28.     </div>
  29.     <div class="sect3" lang="en" xml:lang="en">
  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h4 class="title"><a id="gimp-tool-convolve"></a>3.3.9.┬áConvolver</h4>
  34.           </div>
  35.         </div>
  36.         <div></div>
  37.       </div>
  38.       <a id="id2953155" class="indexterm"></a>
  39.       <div class="mediaobject">
  40.         <img src="../images/toolbox/toolbox-blur.png" />
  41.       </div>
  42.       <p>
  43.     The Convolve tool uses the current brush to blur or sharpen your image.
  44.   </p>
  45.       <div class="simplesect" lang="en" xml:lang="en">
  46.         <div class="titlepage">
  47.           <div>
  48.             <div>
  49.               <h5 class="title"><a id="id2953188"></a>Activate Tool</h5>
  50.             </div>
  51.           </div>
  52.           <div></div>
  53.         </div>
  54.         <div class="itemizedlist">
  55.           <ul type="disc">
  56.             <li>
  57.               <p>
  58.           The Convolver can be called in the following
  59.           order, from the image-menu:
  60.           <span class="guimenuitem"><span class="accel">T</span>ools</span>/
  61.           <span class="guimenuitem"><span class="accel">P</span>aint
  62.             Tools</span>/<span class="guimenuitem">Con<span class="accel">v</span>olve
  63.             .</span> 
  64.         </p>
  65.             </li>
  66.             <li>
  67.               <p>
  68.           The Tool can also be called by clicking the tool icon:
  69.           <span class="guiicon">
  70.             <img src="../images/toolbox/blur.png" />
  71.           </span>
  72.         </p>
  73.             </li>
  74.           </ul>
  75.         </div>
  76.       </div>
  77.       <div class="simplesect" lang="en" xml:lang="en">
  78.         <div class="titlepage">
  79.           <div>
  80.             <div>
  81.               <h5 class="title"><a id="id2953251"></a>Key modifiers (Defaults)</h5>
  82.             </div>
  83.           </div>
  84.           <div></div>
  85.         </div>
  86.         <div class="variablelist">
  87.           <dl>
  88.             <dt>
  89.               <span class="term">Shortcut</span>
  90.             </dt>
  91.             <dd>
  92.               <p>
  93.             The key <span><b class="keycap">V</b></span> will change the active tool to
  94.             Convolve.
  95.           </p>
  96.             </dd>
  97.             <dt>
  98.               <span class="term">
  99.                 <span>
  100.                   <b class="keycap">Ctrl</b>
  101.                 </span>
  102.               </span>
  103.             </dt>
  104.             <dd>
  105.               <p>
  106.             <span><b class="keycap">Ctrl</b></span> toggles between blur and sharpen modes.
  107.             The mode will remain switched until Ctrl is released.
  108.           </p>
  109.             </dd>
  110.             <dt>
  111.               <span class="term">
  112.                 <span>
  113.                   <b class="keycap">Shift</b>
  114.                 </span>
  115.               </span>
  116.             </dt>
  117.             <dd>
  118.               <p>
  119.             <span><b class="keycap">Shift</b></span> places the convolve tool into straight
  120.             line mode.  Holding Shift while clicking
  121.             <span class="mousebutton">Button1</span> will convolve in a straight
  122.             line. Consecutive clicks will continue convolving in straight
  123.             lines that originate from the end of the last line.
  124.            </p>
  125.             </dd>
  126.           </dl>
  127.         </div>
  128.       </div>
  129.       <div class="simplesect" lang="en" xml:lang="en">
  130.         <div class="titlepage">
  131.           <div></div>
  132.           <div></div>
  133.         </div>
  134.         <div class="variablelist">
  135.           <p class="title">
  136.             <b>Options</b>
  137.           </p>
  138.           <dl>
  139.             <dt>
  140.               <span class="term">Overview</span>
  141.             </dt>
  142.             <dd>
  143.               <p>
  144.           The available tool options for the Convolver Tool can be accessed
  145.           by
  146.           double clicking the Convolver Tool icon.
  147.           <span class="guiicon">
  148.             <img src="../images/toolbox/blur.png" />
  149.           </span>
  150.         </p>
  151.             </dd>
  152.             <dt>
  153.               <span class="term">Opacity</span>
  154.             </dt>
  155.             <dd>
  156.               <p>
  157.            The Opacity slider sets the transparency level for the
  158.            operation. A higher opacity setting results in a more opaque
  159.            render and a lower setting results in a more transparent one.
  160.          </p>
  161.             </dd>
  162.             <dt>
  163.               <span class="term">Brush</span>
  164.             </dt>
  165.             <dd>
  166.               <p>
  167.           Indicates the active brush.  Clicking on the brush icon
  168.           opens the brush selection dialog.
  169.         </p>
  170.             </dd>
  171.             <dt>
  172.               <span class="term">Hard Edge</span>
  173.             </dt>
  174.             <dd>
  175.               <p>
  176.           By default the Convolver softens the edges of an area blurred or
  177.           sharpened.
  178.           The <span class="guilabel">Hard Edge</span> toggle changes this behavior.
  179.           Any area convolved while this option is active will be convolved with
  180.           no softening of the edge of the brush used. 
  181.         </p>
  182.             </dd>
  183.             <dt>
  184.               <span class="term">Pressure Sensitivity</span>
  185.             </dt>
  186.             <dd>
  187.               <p>
  188.           The Pressure Sensitivity section sets whether hardness, rate, or
  189.           size  will be affected by pressure for input devices that support
  190.           this option.
  191.         </p>
  192.             </dd>
  193.             <dt>
  194.               <span class="term">Fade Out</span>
  195.             </dt>
  196.             <dd>
  197.               <p>
  198.           This option sets the stroke to fade out after the specified
  199.           distance. The stroke will fade to transparency at the completion
  200.           of the set distance. 
  201.         </p>
  202.             </dd>
  203.             <dt>
  204.               <span class="term">Convolve Type</span>
  205.             </dt>
  206.             <dd>
  207.               <p>
  208.           <span class="guilabel">Blur</span> mode blurs the image colors into each
  209.           other. The result will be a smooth transition between colors, but
  210.           will always be darker than the original colors.
  211.         </p>
  212.               <p>
  213.           <span class="guilabel">Sharpen</span> mode causes neighboring pixels with
  214.           similar colors to converge. Used judiciously, blurry edges can be
  215.           sharpened somewhat, but if applied repeatedly it can produce
  216.           undesired results. 
  217.         </p>
  218.               <p>
  219.           The <span class="guilabel">rate</span> slider sets the strength of the
  220.           convolve effect.
  221.         </p>
  222.             </dd>
  223.           </dl>
  224.         </div>
  225.       </div>
  226.     </div>
  227.     <div class="navfooter">
  228.       <hr />
  229.       <table width="100%" summary="Navigation footer">
  230.         <tr>
  231.           <td width="40%" align="left"><a accesskey="p" href="ch03s03s03s08.html">Prev</a>┬á</td>
  232.           <td width="20%" align="center">
  233.             <a accesskey="u" href="ch03s03s03.html">Up</a>
  234.           </td>
  235.           <td width="40%" align="right">┬á<a accesskey="n" href="ch03s03s03s10.html">Next</a></td>
  236.         </tr>
  237.         <tr>
  238.           <td width="40%" align="left" valign="top">3.3.8.┬áClone Tool┬á</td>
  239.           <td width="20%" align="center">
  240.             <a accesskey="h" href="index.html">Home</a>
  241.           </td>
  242.           <td width="40%" align="right" valign="top">┬á3.3.10.┬áDodge or Burn</td>
  243.         </tr>
  244.       </table>
  245.     </div>
  246.   </body>
  247. </html>
  248.