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#Live3D #Live2D #HandTracking 🧱
I spent some time refining the way I use Warp Deformers to create lateral physics-based swinging motion in Live2D.
With a new production concept, I tried to achieve the highest possible level of mathematical precision.
At the core are two fundamental swinging structures, which I can mix in different proportions to create different qualities of motion.
The first is parallel swinging. Both sides of the Warp Deformer remain perfectly parallel throughout the motion, making it look somewhat like a sheet of paper or a tassel.
The second is bending swinging. The angle between the two sides of the Warp Deformer changes as it moves, making it look more like a flexible tube or a tail.
（0:12）Interestingly, when I layer the first and second structures together, the bottom forms an X-shaped pattern as it swings. It looks a little like a spine or some kind of mechanical structure.
（0:23）The third structure is an equal blend of the first and second. Its characteristics are much more neutral, combining the qualities of both.
（0:35）The fourth and fifth structures are created by smoothly blending the first structure into the center of the second, and the second into the center of the first, respectively. This makes them appear softer and more flexible, somewhat like a piece of fabric.
（0:28）Interestingly, when I blend the fourth and fifth structures equally, the result is exactly identical to the third structure. This also demonstrates that, despite their apparent complexity, the two are actually perfect mirror images of each other.
Every physics-based motion shown here uses a two-segment pendulum structure, with a swinging range of ±90°.
In theory, when curled to its limit, it can bend upward into a perfect semicircle.
To most people, this may look as boring as a brick.
But to me, this is exactly where the romance of Live2D physics lies.
Does anyone else feel the same way?
