How to shoot by photography superposition method?

Photographic superposition method is to take multiple photos, and use software to automatically select the clear parts of multiple photos to synthesize a new clear photo, which solves the problem of the depth of the scene during shooting and is more used for macro photography. Similar to the superposition of multiple photos to form multiple layers, the clear part of each layer is visible by using the mask principle, and finally a new clear photo is synthesized. So when shooting, in addition to the focus, we should pay attention to various conditions and parameters every time we shoot. Such as camera, object, lighting conditions, exposure parameters, etc. It must be fixed, and you can only shoot if you change the focus position as needed, otherwise the software is not omnipotent and you can't synthesize an ideal photo.

The above is the superposition method of depth of field. What time superposition method is there now? It is to select some contents taken at different times from multiple photos to synthesize a new photo, so I won't elaborate on them one by one.