Actually, I don't want to recreate existing effects, they already exist
. However, the underlying method may be useful for other animations.
The basic flipping effect can be done quite easily with instances. I'm sure there are other methods than this, too!
The object, let's call it feather, is simply animated with a 180° rotation and a little stretching in length.
View attachment 150176
The feather is instanced on a plane. This plane has a weight map with a gradient from 0 to 100. With the help of this weight map
you can control the Time Offse
t of the instances.
View attachment 150177
Randomly varying stretching the length of the instances creates more randomness.
View attachment 150178
A procedural texture
added to the Time Offset improves the "wave".
View attachment 150179
Finally, adding a procedural texture to the Time Scale
improves it even more.
View attachment 150180
Viewed from the "other" side.
View attachment 150181
Easy to control with different weight maps
View attachment 150182
Very handy can be that you can automatically adjust the size
of the instances to the size of the underlying polygons (as Rene has already shown in his video).
View attachment 150183
With a crazy setup, you can also bend
the individual springs as you turn them over (as they did in the movies).
View attachment 150184
But that would be easier to do with DPont's volumetric instancer
, not for LW 2018 and above), because it can play back deformations with different time offsets for indivitual instances.
One more note:
different methods of the effect appear in the movies. Most often there are two real shots that are blended
with the overlaying 3D effect (turning feathers) only.