# 物理参数

物理参数支持调整X方向的重力与Y方向的重力

<table data-full-width="false"><thead><tr><th width="150">图片</th><th width="113">功能</th><th width="349">说明</th><th>预览图</th></tr></thead><tbody><tr><td><img src="/files/mB1TZTyUM1reThzZ2BL4" alt=""></td><td><strong>重力</strong></td><td><p><br>1. 建议数值范围：-2000～-2000，按照50的倍数调整效果更佳<br>2. 为粒子增加重力加速度，可以让粒子在原本轨迹的基础上，模拟真实世界，增加抛物线的效果<br>3. 重力数值与XY轴方向的对应关系如图：</p><p>以发射器的中心为原点<br> X轴原点左侧为负值，原点右侧为正值<br>Y轴原点下面为正值，原点上面为负值<br><img src="/files/LsODFuEgkvjmJzCBFnKO" alt=""></p></td><td><img src="/files/IEi6bhhCyKGfWZNWkwiz" alt=""></td></tr></tbody></table>


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