New feature for modeling and animation in Generic Model mode. Allows you to create controlled mesh deformations.
In blender this function is called "Shape Keys", in other programs and engines it may be named"Blend Shapes" (for example in Godot) or morph targets. There may be other name.
Here's a clear example from Blender of how it works:
Detailed description of your suggestion
New feature for modeling and animation in Generic Model mode. Allows you to create controlled mesh deformations. In blender this function is called "Shape Keys", in other programs and engines it may be named"Blend Shapes" (for example in Godot) or morph targets. There may be other name.
Here's a clear example from Blender of how it works:
Here's a video that describes well what it is and why it's needed. https://www.youtube.com/watch?v=ZJClHuIXRUM&t=57s