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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>3.6.┬áAirbrush Tool</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
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  11.     <link rel="up" href="ch03s03.html" title="3.┬áBrush Tools" />
  12.     <link rel="prev" href="ch03s03s05.html" title="3.5.┬áEraser" />
  13.     <link rel="next" href="ch03s03s07.html" title="3.7.┬áInk Tool" />
  14.   </head>
  15.   <body>
  16.     <div xmlns="" class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center" id="chaptername">3.┬áBrush Tools</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch03s03s05.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center" id="sectionname">3.6.┬áAirbrush Tool</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch03s03s07.html">Next</a></td>
  25.         </tr>
  26.       </table>
  27.       <hr />
  28.     </div>
  29.     <div class="sect2" lang="en" xml:lang="en">
  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h3 class="title"><a id="gimp-tool-airbrush"></a>3.6.┬áAirbrush Tool</h3>
  34.           </div>
  35.         </div>
  36.       </div>
  37.       <a id="id3437505" class="indexterm"></a>
  38.       <div class="mediaobject">
  39.         <img src="../images/toolbox/toolbox-airbrush.png" />
  40.       </div>
  41.       <p>
  42.     The Airbrush tool emulates a traditional airbrush. This tool is
  43.     suitable for painting soft areas of color.
  44.   </p>
  45.       <div class="simplesect" lang="en" xml:lang="en">
  46.         <div class="titlepage">
  47.           <div>
  48.             <div>
  49.               <h4 class="title"><a id="id3437538"></a>Activate Tool</h4>
  50.             </div>
  51.           </div>
  52.         </div>
  53.         <div class="itemizedlist">
  54.           <ul type="disc">
  55.             <li>
  56.               <p>
  57.           The Airbrush Tool can be called from the image-menu:
  58.           <span class="guimenuitem"><span class="accel">T</span>ools</span>/
  59.           <span class="guimenuitem"><span class="accel">P</span>aint
  60.             Tools</span>/<span class="guimenuitem"><span class="accel">A</span>irbrush
  61.             .</span> 
  62.         </p>
  63.             </li>
  64.             <li>
  65.               <p>
  66.           The Tool can also be called by clicking the tool icon:
  67.           <span class="guiicon">
  68.         <span class="inlinemediaobject"><img src="../images/toolbox/airbrush.png" /></span>
  69.           </span>
  70.         </p>
  71.             </li>
  72.           </ul>
  73.         </div>
  74.       </div>
  75.       <div class="simplesect" lang="en" xml:lang="en">
  76.         <div class="titlepage">
  77.           <div>
  78.             <div>
  79.               <h4 class="title"><a id="id3437602"></a>Key modifiers (Defaults)</h4>
  80.             </div>
  81.           </div>
  82.         </div>
  83.         <div class="variablelist">
  84.           <dl>
  85.             <dt>
  86.               <span class="term">Shortcut</span>
  87.             </dt>
  88.             <dd>
  89.               <p>
  90.             The <span><b class="keycap">a</b></span>
  91.             key will change the active tool to Airbrush Tool.
  92.           </p>
  93.             </dd>
  94.             <dt>
  95.               <span class="term">
  96.           <span><b class="keycap">Ctrl</b></span>
  97.         </span>
  98.             </dt>
  99.             <dd>
  100.               <p>
  101.             <span><b class="keycap">Ctrl</b></span> <span><b class="keycap">a</b></span> changes the airbrush to a <a href="ch03s06s04.html" title="6.4.┬áColor Picker Tool">Color Picker</a>.
  102.           </p>
  103.             </dd>
  104.             <dt>
  105.               <span class="term">
  106.                 <span>
  107.                   <b class="keycap">Shift</b>
  108.                 </span>
  109.               </span>
  110.             </dt>
  111.             <dd>
  112.               <p>
  113.             <span><b class="keycap">Shift</b></span> places the airbrush into straight
  114.             line mode. Holding <span><b class="keycap">Shift</b></span> while clicking
  115.             <span class="mousebutton">Button 1</span> will generate a straight
  116.             line. Consecutive clicks will continue drawing straight lines
  117.             that originate from the end of the last line.
  118.           </p>
  119.             </dd>
  120.           </dl>
  121.         </div>
  122.       </div>
  123.       <div class="simplesect" lang="en" xml:lang="en">
  124.         <div class="titlepage">
  125.           <div>
  126.             <div>
  127.               <h4 class="title"><a id="id3437710"></a>Options</h4>
  128.             </div>
  129.           </div>
  130.         </div>
  131.         <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
  132.           <table border="0" summary="Note">
  133.             <tr>
  134.               <td rowspan="2" align="center" valign="top" width="25">
  135.                 <img alt="[Note]" src="../images/note.png" />
  136.               </td>
  137.               <th align="left">Note</th>
  138.             </tr>
  139.             <tr>
  140.               <td colspan="2" align="left" valign="top">
  141.                 <p>
  142.         See the <a href="ch03s03.html#gimp-tool-brush" title="3.1.┬áCommon Features">Brush Tools
  143.         Overview</a> for a description of tool options that apply to
  144.         many or all brush tools.
  145.       </p>
  146.               </td>
  147.             </tr>
  148.           </table>
  149.         </div>
  150.         <div class="variablelist">
  151.           <dl>
  152.             <dt>
  153.               <span class="term">Overview</span>
  154.             </dt>
  155.             <dd>
  156.               <p>
  157.           The available tool options can be accessed
  158.           by double-clicking the airbrush Tool icon.
  159.           <span class="guiicon">
  160.         <span class="inlinemediaobject"><img src="../images/toolbox/airbrush.png" /></span>
  161.           </span>
  162.         </p>
  163.             </dd>
  164.             <dt>
  165.               <span class="term">Opacity</span>
  166.             </dt>
  167.             <dd>
  168.               <p>
  169.           Opacity can be set in three ways: the slider bar, the spinner,
  170.       and direct entry of the opacity percentage value. A
  171.           higher opacity setting results in a more opaque fill and a lower
  172.           setting results in a more transparent fill.
  173.         </p>
  174.             </dd>
  175.             <dt>
  176.               <span class="term">Mode</span>
  177.             </dt>
  178.             <dd>
  179.               <p>
  180.           The Mode dropdown list provides a selection of paint application
  181.           modes. A list of these modes can be found in the 
  182.           <a href="go01.html#glossary-modes">Glossary</a>.
  183.         </p>
  184.             </dd>
  185.             <dt>
  186.               <span class="term">Brush</span>
  187.             </dt>
  188.             <dd>
  189.               <p>
  190.          Opens a brush selection list.  Using the slider, one of many
  191.          styles of brush can be selected.  At the bottom of the brush
  192.          selector are options for how the selections are displayed.
  193.         </p>
  194.             </dd>
  195.             <dt>
  196.               <span class="term">Gradient</span>
  197.             </dt>
  198.             <dd>
  199.               <p>
  200.          The airbrush has a gradient property, which can be controlled
  201.          from this drop-down list, which is identical to the standard
  202.          gradient selector.  The direction of the gradient is reversible
  203.          using the checkbox to the right of the gradient selector.
  204.         </p>
  205.             </dd>
  206.             <dt>
  207.               <span class="term">Incremental</span>
  208.             </dt>
  209.             <dd>
  210.               <p>
  211.           The Incremental checkbox activates incremental paint mode for the
  212.           tool. More information about incremental mode can be found in the
  213.           <a href="go01.html#glossary-incremental">glossary</a>.
  214.         </p>
  215.             </dd>
  216.             <dt>
  217.               <span class="term">Pressure Sensitivity</span>
  218.             </dt>
  219.             <dd>
  220.               <p>
  221.           The Pressure Sensitivity section sets the sensitivity levels for
  222.           input devices that support this option. 
  223.         </p>
  224.             </dd>
  225.             <dt>
  226.               <span class="term">Fade Out</span>
  227.             </dt>
  228.             <dd>
  229.               <p>
  230.           This option sets the stroke to fade out after the specified
  231.           distance. The stroke will fade to transparency at the completion
  232.           of the set distance. 
  233.         </p>
  234.             </dd>
  235.             <dt>
  236.               <span class="term">Use Color from Gradient</span>
  237.             </dt>
  238.             <dd>
  239.               <p>
  240.           With the checkbox activated, instead of using the 
  241.           foreground or background 
  242.           color drawing, the gradient colors are used. The gradient pattern
  243.           may have repeat patterns, with selected cycle lengths.
  244.         </p>
  245.               <p>
  246.           <span class="inlinemediaobject"><img src="../images/tool-options/brush-gradient-normal.png" /></span>
  247.               <span class="inlinemediaobject"><img src="../images/tool-options/brush-gradient-none.png" /></span>
  248.         </p>
  249.               <p>
  250.           The gradient is painted in a forward direction. The entire color
  251.           sequence of the gradient will be rendered within the distance
  252.           set.
  253.         </p>
  254.               <div class="variablelist">
  255.                 <dl>
  256.                   <dt>
  257.                     <span class="term">Repeat</span>
  258.                   </dt>
  259.                   <dd>
  260.                     <p>
  261.                 <span class="inlinemediaobject"><img src="../images/tool-options/brush-gradient-normal.png" /></span>
  262.                 <span class="inlinemediaobject"><img src="../images/tool-options/brush-gradient-sawtooth.png" /></span>
  263.               </p>
  264.                     <p>
  265.                 <span class="guilabel">Sawtooth Wave</span>: Renders the gradient
  266.                 repeatedly. At each expiry of the distance that has been
  267.                 set, the gradient will begin rerendering from the
  268.                 beginning.
  269.               </p>
  270.                     <p>
  271.                 <span class="inlinemediaobject"><img src="../images/tool-options/brush-gradient-normal.png" /></span>
  272.                 <span class="inlinemediaobject"><img src="../images/tool-options/brush-gradient-triangular.png" /></span>
  273.               </p>
  274.                     <p>
  275.                 <span class="guilabel">Triangular Wave</span>: Renders the gradient
  276.                 repeatedly. At each expiry of the distance that has been
  277.                 set, the gradient will reverse direction and render in that
  278.                 direction until the expiry of the distance once more. At
  279.                 this point, it will begin again until the stroke is
  280.                 complete.
  281.               </p>
  282.                   </dd>
  283.                 </dl>
  284.               </div>
  285.             </dd>
  286.             <dt>
  287.               <span class="term">Rate</span>
  288.             </dt>
  289.             <dd>
  290.               <p>
  291.           The <span class="guilabel">Rate</span> slider adjusts the speed of color
  292.           application that the airbrush  paints. A higher setting will
  293.           produce darker brush strokes in a shorter amount of time.
  294.         </p>
  295.             </dd>
  296.             <dt>
  297.               <span class="term">Pressure</span>
  298.             </dt>
  299.             <dd>
  300.               <p>
  301.           This slider controls the amount of color that the airbrush
  302.           paints. A higher setting here will result in darker strokes.
  303.         </p>
  304.             </dd>
  305.           </dl>
  306.         </div>
  307.       </div>
  308.     </div>
  309.     <div class="navfooter">
  310.       <hr />
  311.       <table width="100%" summary="Navigation footer">
  312.         <tr>
  313.           <td width="40%" align="left"><a accesskey="p" href="ch03s03s05.html">Prev</a>┬á</td>
  314.           <td width="20%" align="center">
  315.             <a accesskey="u" href="ch03s03.html">Up</a>
  316.           </td>
  317.           <td width="40%" align="right">┬á<a accesskey="n" href="ch03s03s07.html">Next</a></td>
  318.         </tr>
  319.         <tr>
  320.           <td width="40%" align="left" valign="top">3.5.┬áEraser┬á</td>
  321.           <td width="20%" align="center">
  322.             <a accesskey="h" href="index.html">Home</a>
  323.           </td>
  324.           <td width="40%" align="right" valign="top">┬á3.7.┬áInk Tool</td>
  325.         </tr>
  326.       </table>
  327.     </div>
  328.   </body>
  329. </html>
  330.