<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<!--
Copyright (c) 2006 UGS Corp.

All Rights Reserved.

This software and related documentation are proprietary to UGS Corp.
-->
<html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <title>Image-Based Lighting</title>
      <script language="javaScript">
        abridged="false";
        displayConditions=new Array();
      </script>
      <link type="text/css" href="../css/main_styles.css" rel="stylesheet">
   </head>
   <body class="bodydocs" onload="top.pageLoader()" bgcolor="#FFFFFF">
      <div class="title_topic4" id="xps10_pagetitle">Image-Based Lighting</div>
      <hr noshade="true">
      <table cellspacing="4" align="center">
         <tr valign="top">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1">
               <p class="para_td">Overview</p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('visualizing_a_part/vie_vis_visfx_ibl_op.html');return(false);">Dialog Options</a></p>
            </td>
         </tr>
      </table><br><p class="para_topic">Image-Based Lighting (<b class="uiTerm">IBL</b>) is a way to define a complex lighting scheme for a scene using a 2D image. For example, you can use an image of an outdoor scene to get &quot;sky&quot; lighting. Or you can use indoor images for &quot;room&quot; or &quot;photography studio&quot; lighting setups. The images you select from the <b class="uiTerm">IBL</b> page are also reflected off of shiny objects in your scene.
      </p>
      <p class="para_topic">The images used for <b class="uiTerm">IBL</b> can be either standard low dynamic range formats, such as TIFF or JPEG or they can be high dynamic range formats, such as EXR or HDR.  High Dynamic Range Image (HDRI) formats represent more real-world lighting and color intensities than low dynamic range ones. With HDRIs, your reflections will be much deeper and more realistic. For this reason, HDRIs are the preferred choice for <b class="uiTerm">IBL</b>.
      </p>
      <table border="0">
         <tr>
            <td valign="top" align="left"><img align="left" src="../graphics/note.gif" alt="Note" title="Note"></td>
            <td valign="bottom" align="left" width="100%">
               <div class="para_note">
                  <p class="para_note_body"><b class="uiTerm">IBL</b> is only supported in high quality images, not in Studio rendering styles. Reflections from <b class="uiTerm">IBL</b> images are supported in <b class="uiTerm">Advanced Studio Display</b>.
                  </p>
               </div>
            </td>
         </tr>
      </table><a class="endOfDocLinks" href="vie_vis_visfx_ibl_op.html">Image-Based Lighting Dialog</a><br></body>
</html>