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      <title>Allow Transparent Shadows</title>
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      <div class="title_topic6" id="xps10_pagetitle"> Allow Transparent Shadows</div>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('visualizing_a_part/vie_vis_hq_ov.html');return(false);">Overview</a></p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('visualizing_a_part/vie_vis_hq_ht.html');return(false);">How To</a></p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('visualizing_a_part/vie_vis_hqi_op.html');return(false);">Dialog Options</a></p>
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      </table><br><p class="para_topic"> Allow Transparent Shadows controls whether light passing through transparent and semi-transparent objects is accurately calculated. When the option is ON, additional calculations are performed, resulting in longer image generation times.</p>
      <p class="para_topic"> This option allows you to have transparent shadows or colored shadows through transparent objects. You can enable this feature through two steps:</p>
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            <p class="para_item"> From the High Quality Image Dialog in the Method list box, select the &quot;Ray Traced&quot; option. This toggles the raytraced shadow capability ON for the light source, a requirement for transparent shadows. Select Shade to open the Setup dialog.</p>
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            <p class="para_item"> From the Setup Dialog, toggle ON the Generate Shadows. Then open Advanced Setup and toggle ON the Allow Transparent Shadows. Shadows can be raytraced without going through the extra step of handling transparency, which slows down image generation.</p>
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      <p class="para_topic"> The following two images illustrate the shadow capabilities. The geometry consists of a red transparent object and a rectangular box floating above a texture mapped plane. The rectangular box is yellow, with a transparent grid texture applied.</p>
      <p class="para_topic"> The first image shown below displays non-transparent, basic shadows. Note that the shadow of the rectangular box is solid, and the shadow of the red object is dark.</p>
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         <p align="center"><img align="bottom" src="graphics/vie_8viewfr65.gif"></p>
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      <div class="title_figure"> Allow Transparent Shadows OFF</div>
      <p class="para_topic"> The next image shows transparent shadows. Note the red tint and open sections in the two shadows.</p>
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         <p align="center"><img align="bottom" src="graphics/vie_8viewfr64.gif"></p>
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      <div class="title_figure"> Allow Transparent Shadows ON</div>
      <p class="para_topic"> The second image shows transparent shadows. Note the red tint and open sections in the two shadows.</p>
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