Hi @advra, I think this is related (or maybe the same) as mask layers feature:
- Mask Layers + Transparent Pixel Lock · Issue #459 · aseprite/aseprite · GitHub
- Option for masking layer by content of another layer · Issue #1583 · aseprite/aseprite · GitHub
- Clip mask feature plsssss
- etc.
To do this we need to implement a new rendering engine which will include a feature like this:
There is some work in progress with:
- Shader-based render engine · Issue #3516 · aseprite/aseprite · GitHub
- Initial work for a new shader-based renderer by dacap · Pull Request #3523 · aseprite/aseprite · GitHub
but still nothing fully functional.