# 膨胀

## **概览**

气球滤镜会沿像素的下坡方向将地形向外或向内位移。

## **参数**

<table><thead><tr><th width="179.699951171875">属性</th><th>描述</th></tr></thead><tbody><tr><td><strong>方向</strong></td><td>控制是将像素向外推动还是向内推动。</td></tr><tr><td><strong>长度</strong></td><td>设置像素将被位移的距离。请记住，这也会受到其操作的层级步长的影响。</td></tr><tr><td><strong>平滑度</strong></td><td>控制结果形状的平滑度。</td></tr></tbody></table>

## **结果**

<div><figure><img src="/files/7c9d4c9158b6286f1987497ab4e416e2e6c03eb1" alt=""><figcaption></figcaption></figure> <figure><img src="/files/c4ef962059589c1be30c7caaa75dcc1b72a0ee19" alt=""><figcaption></figcaption></figure></div>


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