# 快速流动

## 概述

快速流效果运行水力粒子模拟并从中创建蒙版。

## 参数

<table><thead><tr><th width="199.7999267578125">属性</th><th>描述</th></tr></thead><tbody><tr><td><strong>迭代次数</strong></td><td>模拟将运行的迭代次数。</td></tr><tr><td><strong>速度阈值</strong></td><td>速度低于此值的粒子将被消除。</td></tr><tr><td><strong>雨强度</strong></td><td>在模拟开始时投放的雨滴粒子数量。</td></tr><tr><td><strong>平滑度</strong></td><td>对生成的蒙版进行平滑处理。</td></tr><tr><td><strong>流量截断</strong></td><td>消除水量低于某一数值的所有粒子。</td></tr><tr><td><strong>流动平滑度</strong></td><td>在各个水流之间混合出更柔和的区域。</td></tr></tbody></table>

## 结果

<div><figure><img src="/files/7a089c37ac64effa1ffe0e9cc972982ca562059d" alt=""><figcaption></figcaption></figure> <figure><img src="/files/2ac62f74b659df2fc589a44806a030749231ce2f" alt=""><figcaption></figcaption></figure></div>


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