Help How to fix both ends when using bones for a ObiRope?

[josemendez]

As this example in document shows, ObiRope can be fixed on both ends, leaving only the middle part free.

But I can't figure out how to integrate with a character with bone hierarchy. For example, in this example the dragon's tail is made of 12 bones. In this case, how to make only the first (root) and last (tip) bones follow a predefined animation, while let hair_1 and hair_2 be solved by Obi?

Hi!

ObiRope and ObiBone work quite differently.For pre-existing bone hierarchies, you'd typically use ObiBone.

You can use skin constraints to control how simulation/animation are blended along the bone hierarchy. Their skin radius parameter controls the maximum distance each particle can move away from the position specified by the animation before the constraint takes effect.
To have the first and last bones to follow the bone position as specified in the animation, set the skin radius curve to a inverted "U" shape, so that it starts at 0, goes up to 1, then goes back to zero. Also make sure skin compliance is set to 0, so that there's no elasticity to the constraint.

kind regards,