Currently when you draw on a new frame in auto frame mode, toy draw over a copy of the previous frame.
This is fine if you're doing a cumulative animation, but it makes auto frame useless for regular animation, forcing us to manually add frames.
It would be better if it wiped the previous frames when auto adding a new one, or at least if this could be set as a preference.
This makes sense, but I can imagine the copy behaviour being useful as well to some, though much less than the wipe-behaviour.
I second the both of you - in traditional animation, you almost never want previous frames to be kept. It's only useful with modular animation.
Usually a wipe,yes,but in that case you can just press clear or delete. Keeping the modular way of working is very valuable too.
A switch keeping current way of working as default would be ok. The way it works right now actually cover all different needs already in this way:
The thing is the new frame content depends on the action made to create it.
-Need to keep all of previous drawing? Start drawing to add on top of previous frame.
-Need to keep only a part of previous drawing? Start drawing with the eraser to create a frame with remaining of previous frame (this can actually also be common on regular frame-by-frame animation to save some time)
-Need a new empty frame? Press delete to create a frame.
See that this way there's a logic and all cases are possible depending on the action, without using a specific option to switch the way auto-frame works.