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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>15.2.¬† Alien Glow</title>
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  12.     <link rel="start" href="index.html" title="GNU Image Manipulation Program" />
  13.     <link rel="up" href="filters-alpha-to-logo.html" title="15.¬† Alpha to Logo Filters" />
  14.     <link rel="prev" href="filters-alpha-to-logo.html" title="15.¬† Alpha to Logo Filters" />
  15.     <link rel="next" href="script-fu-basic1-logo-alpha.html" title="15.3.¬† Basic I" />
  16.   </head>
  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">15.2.¬†
  22.     <span lang="en" xml:lang="en">Alien Glow</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="filters-alpha-to-logo.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">15.¬†
  28.     <span lang="en" xml:lang="en">Alpha to Logo Filters</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="script-fu-basic1-logo-alpha.html"><img src="../images/next.png" alt="Next" /></a></td>
  31.         </tr>
  32.       </table>
  33.       <hr />
  34.     </div>
  35.     <div class="sect2" lang="en" xml:lang="en">
  36.       <div class="titlepage">
  37.         <div>
  38.           <div>
  39.             <h3 class="title"><a id="script-fu-alien-glow-logo-alpha"></a>15.2.¬†
  40.     <span lang="en" xml:lang="en">Alien Glow</span>
  41.   </h3>
  42.           </div>
  43.           <div>
  44.             <div class="revhistory">
  45.               <table border="1" width="100%" summary="Revision history">
  46.                 <tr>
  47.                   <th align="left" valign="top" colspan="3">
  48.                     <b>Revision History</b>
  49.                   </th>
  50.                 </tr>
  51.                 <tr>
  52.                   <td align="left">Revision $Revision: 2413 $</td>
  53.                   <td align="left">2007-11-11</td>
  54.                   <td align="left">ude</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2782632" class="indexterm"></a>
  62.       <a id="id2782650" class="indexterm"></a>
  63.       <div class="sect3" lang="en" xml:lang="en">
  64.         <div class="titlepage">
  65.           <div>
  66.             <div>
  67.               <h4 class="title"><a id="id2782659"></a>15.2.1.¬†
  68.       <span lang="en" xml:lang="en">Overview</span>
  69.     </h4>
  70.             </div>
  71.           </div>
  72.         </div>
  73.         <div class="figure">
  74.           <a id="id2782669"></a>
  75.           <p class="title">
  76.             <b>Figure¬†16.293.¬†
  77.         <span lang="en" xml:lang="en">
  78.           Example for the ‚Äú<span class="quote">Alien Glow</span>‚Äù filter
  79.         </span>
  80.       </b>
  81.           </p>
  82.           <div class="figure-contents">
  83.             <div class="mediaobject">
  84.               <img src="../images/filters/examples/logo-alien-glow.jpg" alt="Example for the Alien Glow filter" />
  85.               <div class="caption">
  86.                 <p>‚Äú<span class="quote">Alien Glow</span>‚Äù applied</p>
  87.               </div>
  88.             </div>
  89.           </div>
  90.         </div>
  91.         <br class="figure-break" />
  92.         <p>
  93.       This filter adds an eerie glow around the active layer's alpha.
  94.     </p>
  95.         <div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
  96.           <table border="0" summary="Warning">
  97.             <tr>
  98.               <td rowspan="2" align="center" valign="top" width="25">
  99.                 <img alt="[Warning]" src="../images/warning.png" />
  100.               </td>
  101.               <th align="left">Warning</th>
  102.             </tr>
  103.             <tr>
  104.               <td align="left" valign="top">
  105.                 <p>
  106.         The image will always be resized to the active layer's size.
  107.       </p>
  108.               </td>
  109.             </tr>
  110.           </table>
  111.         </div>
  112.         <p>
  113.       The filter is derived from the ‚Äú<span class="quote">Alien Glow</span>‚Äù script
  114.       (<span class="guimenu"><span class="accel">X</span>tns</span> ‚Üí <span class="guisubmenu"><span class="accel">L</span>ogo</span> ‚Üí <span class="guimenuitem">Alien <span class="accel">G</span>low</span> in the toolbox),
  115.       which creates the following text effect:
  116.     </p>
  117.         <div class="mediaobject">
  118.           <img src="../images/filters/examples/alien-glow-script-fu.jpg" />
  119.           <div class="caption">
  120.             <p>The ‚Äú<span class="quote">Alien Glow</span>‚Äù Script-Fu script.</p>
  121.           </div>
  122.         </div>
  123.         <p>
  124.       Reproducing this glow is easy:
  125.     </p>
  126.         <div class="itemizedlist">
  127.           <ul type="disc">
  128.             <li>
  129.               <p>
  130.           If necessary, create a
  131.           <a class="link" href="gimp-layer-alpha-selection-replace.html" title="10.36.¬† Alpha to Selection">selection from
  132.           the alpha channel</a> of the active layer.
  133.         </p>
  134.             </li>
  135.             <li>
  136.               <p>
  137.           Fill the selection with the following
  138.           <a class="link" href="gimp-tool-blend.html" title="3.4.¬† Blend">Gradient Blend</a>: Shape =
  139.           Shaped (spherical); Gradient = FG to BG (RGB), with FG = dark gray
  140.           (79,79,79), BG = black.
  141.         </p>
  142.             </li>
  143.             <li>
  144.               <p>
  145.           Create a <a class="link" href="gimp-layer-new.html" title="10.2.¬† New Layer">new layer</a>
  146.           (‚Äú<span class="quote">Alien Glow</span>‚Äù) below.
  147.           <a class="link" href="gimp-selection-grow.html" title="7.12.¬† Grow">Extend</a> the selection
  148.           slightly,
  149.           <a class="link" href="gimp-selection-feather.html" title="7.9.¬† Feather">feather</a> it,
  150.           and fill it with the <span class="guilabel">Glow¬†color</span>.
  151.         </p>
  152.             </li>
  153.             <li>
  154.               <p>
  155.           Create a new background layer filled with black.
  156.         </p>
  157.             </li>
  158.           </ul>
  159.         </div>
  160.       </div>
  161.       <div class="sect3" lang="en" xml:lang="en">
  162.         <div class="titlepage">
  163.           <div>
  164.             <div>
  165.               <h4 class="title"><a id="id2782896"></a>15.2.2.¬†
  166.       <span lang="en" xml:lang="en">Activate the filter</span>
  167.     </h4>
  168.             </div>
  169.           </div>
  170.         </div>
  171.         <p>
  172.       You can find this filter in the image window menu under
  173.       <span class="guimenu"><span class="accel">F</span>ilters</span> ‚Üí <span class="guisubmenu">Alpha to <span class="accel">L</span>ogo</span> ‚Üí <span class="guimenuitem">Alien <span class="accel">G</span>low</span>.
  174.     </p>
  175.       </div>
  176.       <div class="sect3" lang="en" xml:lang="en">
  177.         <div class="titlepage">
  178.           <div>
  179.             <div>
  180.               <h4 class="title"><a id="id2782948"></a>15.2.3.¬†
  181.       <span lang="en" xml:lang="en">Options</span>
  182.     </h4>
  183.             </div>
  184.           </div>
  185.         </div>
  186.         <div class="figure">
  187.           <a id="id2782958"></a>
  188.           <p class="title">
  189.             <b>Figure¬†16.294.¬†
  190.         <span lang="en" xml:lang="en">‚Äú<span class="quote">Alien Glow</span>‚Äù options</span>
  191.       </b>
  192.           </p>
  193.           <div class="figure-contents">
  194.             <div class="mediaobject">
  195.               <img src="../images/filters/options-logo-alien-glow.png" alt="Alien Glow options" />
  196.             </div>
  197.           </div>
  198.         </div>
  199.         <br class="figure-break" />
  200.         <div class="variablelist">
  201.           <dl>
  202.             <dt>
  203.               <span class="term">
  204.         <span lang="en" xml:lang="en">Glow size (pixels * 4)</span>
  205.         </span>
  206.             </dt>
  207.             <dd>
  208.               <p>
  209.             This is actually the font size option of the
  210.             ‚Äú<span class="quote">Alien¬†Glow</span>‚Äù Script-Fu script. However, two values
  211.             will be set in relation to this size: the glow will be enlarged by
  212.             ‚Äú<span class="quote">Glow¬†size</span>‚Äù¬†/¬†30, and feather radius is
  213.             ‚Äú<span class="quote">Glow¬†size</span>‚Äù¬†/¬†4. You should probably choose the
  214.             height of your objects for this option (ignore
  215.             ‚Äú<span class="quote">pixels¬†*¬†4</span>‚Äù).
  216.           </p>
  217.             </dd>
  218.             <dt>
  219.               <span class="term">
  220.         <span lang="en" xml:lang="en">Glow color</span>
  221.         </span>
  222.             </dt>
  223.             <dd>
  224.               <p>
  225.             This is the color of the ‚Äú<span class="quote">eerie</span>‚Äù glowing. Of course
  226.             it defaults to green (63,252,0), but a click on the swatch
  227.             button brings up the color selector where you can choose any
  228.             color.
  229.           </p>
  230.             </dd>
  231.           </dl>
  232.         </div>
  233.       </div>
  234.     </div>
  235.     <div class="navfooter">
  236.       <hr />
  237.       <table width="100%" summary="Navigation footer">
  238.         <tr>
  239.           <td width="40%" align="left"><a accesskey="p" href="filters-alpha-to-logo.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  240.           <td width="20%" align="center">
  241.             <a accesskey="u" href="filters-alpha-to-logo.html">
  242.               <img src="../images/up.png" alt="Up" />
  243.             </a>
  244.           </td>
  245.           <td width="40%" align="right">¬†<a accesskey="n" href="script-fu-basic1-logo-alpha.html"><img src="../images/next.png" alt="Next" /></a></td>
  246.         </tr>
  247.         <tr>
  248.           <td width="40%" align="left" valign="top"><a accesskey="p" href="filters-alpha-to-logo.html">15.¬†
  249.     <span lang="en" xml:lang="en">Alpha to Logo Filters</span>
  250.   </a>¬†</td>
  251.           <td width="20%" align="center">
  252.             <a accesskey="h" href="index.html">
  253.               <img src="../images/home.png" alt="Home" />
  254.             </a>
  255.           </td>
  256.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="script-fu-basic1-logo-alpha.html">15.3.¬†
  257.     <span lang="en" xml:lang="en">Basic I</span>
  258.   </a></td>
  259.         </tr>
  260.       </table>
  261.     </div>
  262.   </body>
  263. </html>
  264.