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1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">使用指南</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/cocos-enhance-kit/docs/2.2.0/user-guide/tiledmap/tiledmap-intro"><span itemprop="name">TiledMap</span></a><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">复用 Culling 数据</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本2.2.0</span><div class="tocCollapsible_bZGK theme-doc-toc-mobile tocMobile_TmEX"><button type="button" class="clean-btn tocCollapsibleButton_l22C">本页总览</button></div><div class="theme-doc-markdown markdown"><h1>复用 Culling 数据</h1><p>一个 TiledMap 可能会有很多 TiledLayer如果开启了 Culling那这些 Layer 都需要单独计算 Culling 数据,社区版新增了在满足一定条件的情况下可以复用 Culling 数据的特性,以减少 CPU 的性能消耗。</p><h2 class="anchor anchorWithStickyNavbar_mojV" id="大致原理">大致原理<a class="hash-link" href="#大致原理" title="标题的直接链接"></a></h2><p>通过为 TiledLayer 指定另一个 TiledLayer来复用指定的 TiledLayer 的 Culling 数据。</p><h2 class="anchor anchorWithStickyNavbar_mojV" id="前提条件">前提条件<a class="hash-link" href="#前提条件" title="标题的直接链接"></a></h2><ul><li>两者的世界矩阵(也是大小、位置、缩放等属性)一致</li><li>两者所用的 Camera 一致</li><li>两者的 TiledLayer 类型、属性一致</li><li>确保被复用的 Layer 会更早进行渲染(否则 Culling 数据同步可能会延迟一帧) </li></ul><div class="admonition admonition-tip alert alert--success"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="16" viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span>注意</h5></div><div class="admonition-content"><p>复用可以是不同 TiledMap 的 TiledLayer但一定要满足上面几个条件否则 Culling 结果可能不正确。</p></div></div><h2 class="anchor anchorWithStickyNavbar_mojV" id="使用方式">使用方式<a class="hash-link" href="#使用方式" title="标题的直接链接"></a></h2><p>假设项目中有 TiledMap 由 5 个 TiledLayer 组合成一张地图。</p><p><img loading="lazy" 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" width="550" height="254" class="img_E7b_"></p><p>这种情况如果需要复用 Culling 数据只需要多选后四个节点,然后将第一个节点拖入这四个节点的 <code>Culling Layer</code> 属性中即可。</p><p><img loading="lazy" src="/cocos-enhance-kit/assets/images/tiledmap-inspector-a3e53bb62769339c5c2bbcafe7be3875.png" width="606" height="648" class="img_E7b_"></p><p>这样就使后四个 Layer 复用第一个 Layer 的 Culling 数据了。</p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="文档分页导航"><a class="pagination-nav__link pagination-nav__link--prev" href="/cocos-enhance-kit/docs/2.2.0/user-guide/tiledmap/tiledmap-intro"><div class="pagination-nav__sublabel">上一页</div><div class="pagination-nav__label">TiledMap</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/cocos-enhance-kit/docs/2.2.0/user-guide/multithread/thread-intro"><div class="pagination-nav__sublabel">下一页</div><div class="pagination-nav__label">多线程支持</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_cNA8 thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#大致原理" class="table-of-contents__link toc-highlight">大致原理</a></li><li><a href="#前提条件" class="table-of-contents__link toc-highlight">前提条件</a></li><li><a href="#使用方式" class="table-of-contents__link toc-highlight">使用方式</a></li></ul></div></div></div></div></main></div></div></div>
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