# 遮蔽

## 概述

遮挡分布对地形进行环境遮挡贴图采样，用于遮罩裂缝或山脊。

## 参数

<table><thead><tr><th width="199.7999267578125">属性</th><th>描述</th></tr></thead><tbody><tr><td><strong>随机采样</strong></td><td>使用随机采样而非固定步长。可提高性能但在较低数值会产生颗粒感。</td></tr><tr><td><strong>水平步数</strong></td><td>遮挡计算中的水平步数。</td></tr><tr><td><strong>垂直步数</strong></td><td>遮挡计算中的垂直步数。</td></tr><tr><td><strong>步数</strong></td><td>整体步数的乘数。</td></tr><tr><td><strong>颗粒</strong></td><td>控制最终遮罩中的颗粒量。</td></tr><tr><td><strong>遮挡范围</strong></td><td>允许你夹住AO计算的结果。</td></tr><tr><td><strong>半径</strong></td><td>AO算法的采样半径。较小的值捕捉较小尺度的细节，较大的值则检测大尺度的地形特征。</td></tr><tr><td><strong>平坦化</strong></td><td>改善平坦区域细节的检测。</td></tr></tbody></table>

## 结果

<figure><img src="/files/73f89bd028c2a74aba689012e965558aa923cc87" alt=""><figcaption></figcaption></figure>


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