这是一个液化图片的程度，在processing里运行，它是模仿了photoshop里的液化功能。其原理是给图片加上纹理坐标，然后将网格和纹理坐标连接起来。-This is a picture of liquefaction and run in processing, it is emulating the the liquefaction features in Photoshop. Its principle is to add to the picture texture coordina