Misaki jiafeiii Thanks for your input! We have received requests from a number of users to implement a masking feature based on an image's alpha, and Nate has responded to this in the following threads, so please refer to them: https://esotericsoftware.com/forum/d/16987-asset-based-clipping-masks https://esotericsoftware.com/forum/d/7420-best-way-to-animate-eyes-moving https://esotericsoftware.com/forum/d/10108-precise-clipping-mask
