Not sure how to code this Random/shuffling image effect

[GoToLoop]

How to check if a file is exist in data folder by code?

Yes! Just pass an empty string "" to dataPath(): dataFolderPath = this.dataPath('') + '/' print dataFolderPath … or to dataFile(): dir = this.dataFile('') dataFolderPath = dir.path + '/' print dataFolderPath However, if you need all files within the sketch’s “data/” folder, like all images for example, you can use listPaths(), passing the “data/” folder path + a string w/ all desired “extensions=,”: PICS_EXTS = 'extensions=,png,jpg,jpeg,gif,tif,tiff,tga,bmp,wbmp' dir = this.…