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<title>Radeon® 7200 到 Radeon® 9100 的“API 特有”功能</title>
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<h2 class="pHeading2">
Radeon® 7200 到 Radeon® 9100 的“API 特有”功能
</h2>

<p class="pBody">
使用 <span style="font-weight: bold">API 特有</span>对话框能够选择专门用于 Direct3D® 和 OpenGL® 应用程序编程接口 (API) 的设置。这些设置用来解决使用这些 API 的 3D 应用程序中的某些不兼容性问题。
</p>

<p class="pBody">
当您知道 3D 应用程序使用哪种类型的 API（Direct3D® 或 OpenGL®），并且想要选择一种特定的“API 特有”功能时，可使用此对话框。
</p>

<p class="pBody">
如果您不确定 3D 应用程序使用的是哪种 API，请查询 3D 应用程序文档。
</p>

<h3 class="pHeading3">
您想要做什么呢？
</h3>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1001735", false);</script>设置支持 32-位 Z-缓冲深度<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1001735", false);</script>
</p>
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<p class="pBody">
启用该选项可以减少一些游戏中的背景闪烁现象。
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>在“高级视图”中展开<span style="font-weight: bold">3D</span>。 </li></div>

<div class="pSmartList1"><li>单击 <span style="font-weight: bold">API 特有</span>。</li></div>

<div class="pSmartList1"><li>单击<span style="font-weight: bold">支持 32-位 Z-缓冲深度</span>复选框。</li></div>
</ol></div>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVClose();</script>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1001803", false);</script>为 Direct 3D® 设置“支持 DXT 纹理格式”<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1001803", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1001803", false);</script>

<p class="pBody">
此选项启用对 DirectX® 压缩纹理格式的支持功能。绘制相同数量的纹理，DXT 只需一半的内存量。这样，它在获取高质量图形的同时还节约了内存。
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>在“高级视图”中展开<span style="font-weight: bold">3D</span>。 </li></div>

<div class="pSmartList1"><li>单击 <span style="font-weight: bold">API 特有</span>。</li></div>

<div class="pSmartList1"><li>单击<span style="font-weight: bold">支持 DXT 纹理格式</span>复选框。</li></div>
</ol></div>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVClose();</script>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1001814", false);</script>为 Direct 3D® 设置“替代像素中心”<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1001814", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1001814", false);</script>

<p class="pBody">
它可以解决某些 Direct3D® 游戏中在纹理周围显示垂直和水平线条以及不能正确显示文本的问题。您只有在遇到这些问题时才应当启用此设置，因为它可能在其它游戏中产生问题。
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>在“高级视图”中展开<span style="font-weight: bold">3D</span>。 </li></div>

<div class="pSmartList1"><li>单击 <span style="font-weight: bold">API 特有</span>。</li></div>

<div class="pSmartList1"><li>单击<span style="font-weight: bold">替代像素中心</span>复选框。</li></div>
</ol></div>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1001825", false);</script>为 OpenGL® 设置“三重缓冲”<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1001825", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1001825", false);</script>

<p class="pBody">
启用垂直同步信号时如果帧速率低于垂直同步刷新速率，则启用“三重缓冲”可提高游戏的帧速率。在内存较小时，由于纹理和几何数据只有很少的帧缓冲内存可用，启用“三重缓冲”可能会降低应用程序的性能。如果没有足够的可用内存来支持“三重缓冲”，则此功能将自动禁用。
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>在“高级视图”中展开<span style="font-weight: bold">3D</span>。 </li></div>

<div class="pSmartList1"><li>单击 <span style="font-weight: bold">API 特有</span>。</li></div>

<div class="pSmartList1"><li>单击<span style="font-weight: bold">三重缓冲</span>复选框。</li></div>
</ol></div>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVClose();</script>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1001761", false);</script>为 OpenGL® 设置“强制 24 位 Z 缓冲深度”<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1001761", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1001761", false);</script>

<p class="pBody">
使您能够明确设置 Z 缓冲深度。采用<span style="font-weight: bold">已禁用</span>设置时，大部分应用程序能达到最佳工作状态。
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>在“高级视图”中展开<span style="font-weight: bold">3D</span>。 </li></div>

<div class="pSmartList1"><li>单击 <span style="font-weight: bold">API 特有</span>。</li></div>

<div class="pSmartList1"><li>单击<span style="font-weight: bold">强制 24-位 Z-缓冲深度</span>复选框。</li></div>
</ol></div>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVClose();</script>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1004502", false);</script>应用您的设置<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1004502", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1004502", false);</script>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>单击<b class="cBold">应用</b><b class="cBold"> </b>保存所做的更改，并使 Catalyst&reg; Control Center 保持打开状态。</li></div>

<div class="pSmartList1"><li>单击<b class="cBold">确定</b>保存所做的更改，并退出 Catalyst&reg; Control Center。</li></div>
</ol></div>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVClose();</script>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1004513", false);</script>恢复默认设定值<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1004513", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1004513", false);</script>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>将鼠标移动到窗口的右下角。</li></div>

<div class="pSmartList1"><li>单击<b class="cBold">默认值</b>。</li></div>
</ol></div>

<p class="pIndented1">
注意：	单击<b class="cBold">默认值</b>按钮将仅恢复当前视图的默认值。先前的设置并没有改变，单击<b class="cBold">确定</b>即可保存。
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1004519", false);</script>放弃您的设置<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1004519", false);</script>
</p>
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteDIVOpen("exwp1004519", false);</script>
<div class="pSmartList1"><ul class="pSmartList1">

<div class="pSmartList1"><li>单击<span style="font-weight: bold">放弃</span>可忽略任何未保存的更改，恢复到打开 Catalyst&reg; Control Center 时或上次使用<span style="font-weight: bold">应用</span>时已存在的设置。“放弃”命令不会关闭 Catalyst&reg; Control Center。</li></div>
</ul></div>

<p class="pBody">
单击<b class="cBold"> </b>放弃<b class="cBold"> </b>时，此命令对某个界面下的所有功能有效，而不仅仅作用于当前视图下的功能。
</p>

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