增加一个白色背景，然后保存文件成PSD格式，否则就不能被置换滤镜操作。

Add a white background. After that save the file, it has to be PSD otherwise it won't work with the Displace filter.

youdao

声明AnimateFilter、目标显示对象、重复计数、期间之后，就可以声明即将操作的确切滤镜了。

After declaring AnimateFilter, the target display object, repeat count, duration, and the exact filter to be operated on can be declared.

youdao

声明AnimateFilter、目标显示对象、重复计数、期间之后，就可以声明即将操作的确切滤镜了。

After declaring AnimateFilter, the target display object, repeat count, duration, and the exact filter to be operated on can be declared.

youdao