This one is a blog for my animation students primarily.
In 3d, frames 1-17 of the left limbs can be pasted over the right limbs on frames 17-33.
Frame 9 and 25 are passing positions
(whether you emphasise the “Down”* and “UP” positions or not, it is essential to focus on the movements of the foot as it follows from the passing position to the contact. As the leg moves forward – this would be the “UP” position” (12/28) and as it moves towards the contact (14/30), this helps to give the impression of weight – but we will look at this more fully next time!)
The principles of the walk are the same for 3d and 2d
Here is reference from Muybridge:
and another from Muybridge:
modern Female walk cycle reference:
modern Male walk cycle reference:
*the Down position -5/21- gives you the widest arm position in the conventional walk, incidentally, which is why the “DOWN”/”UP” positions are important, but I think it is the movement following the passing position which makes the walk cycle believable!