Worm Rig Movement Issue - Need Assistance with IK Implementation

Help and Feedback Scripting Support
, ,
#1

Hello everyone any help is appreciated!
image

image
image279×725 35.6 KB

What do you want to achieve?
I want the worm rig to move smoothly using Inverse Kinematics (IK) instead of gliding around.

What is the issue?
    The current rig is constructed with BallSocketConstraints, and I'm encountering difficulties with smooth movement. The worm tends to glide around instead of having the desired fluid motion.

What solutions have you tried so far?

    I've explored using BallSocketConstraints for the rig but faced issues with smooth movement. Now, I'm looking to implement Inverse Kinematics (IK) to achieve the desired motion.

    I've checked the Developer Hub but couldn't find specific guidance on transitioning from BallSocketConstraints to IK for smoother worm movement.
4 Likes
#2

Assuming you want a snake-like movement, you could try to apply a force every few segments that alternate in direction.

2 Likes
#3

I was mainly looking for the parts to kinda follow each other

1 Like
#4

I would use sine waves

1 Like
#5

Do you know how I would go about doing that

1 Like
#6

Sure! Do you know anything about them?

1 Like
#7

Oh, I misread you want the body to follow the head, correct?

1 Like
#8

I do believe that they can be used to create terrain but I definitely would not know how to create worm movement

1 Like
#9

That is what I would be going for

#10

Okay yeah, so I would think of the worm, and the velocity at what you’re going as a triangle right? As such.

image
image1116×560 37.9 KB

1 Like
#11

Thanks for all the help I will be doing some more research onto this but how would I go about adding that onto the worm

1 Like
#12

Then, based on the Velocity and the size of the worm we can get the angles based on the sides of our triangle using Law of Cosine with Side-Side-Side (SSS)

image
image1116×560 43.7 KB

Based on that we can then find the angle (θ)

image
image1116×560 44 KB

With (θ), we can rotate the joints from behind, but you can’t just rotate them based on that angle. Since a worm moves in a “follow the leader” pattern, we’ll need to split the angle accordingly, right.

2 Likes
#13

alr I think I understand so you think I shouldent do it useing IK

1 Like
#14

It’s possible and would be cool if you did.

2 Likes
#15

Thats what im trying to do because I have moved the worm using this Inverse Kinematic Drag Tools Now Available! has the desired effect

1 Like