Smooth rotation broke my head.

Unity Engine
1

I’ve tried almos all the ways to make my rotaion smooth with no luck;
I have a capsule collider with rigidbody. I want to make a simle fish behavior with jump from the water and fall back.

Jump:

if(Time.time > JumpDelay)
		{
			JumpDelay = Time.time + JumpRate;
			rigidbody.AddForce(Vector3.up*jumpForce, ForceMode.Impulse);
		}

rotate to move dir

transform.up = rigidbody.velocity;

How to smooth?

2

You can use this to set the rotation based on the velocity

transform.rotation = Quaternion.LookRotation(rigidbody.velocity);

To rotate smoothly, you can use Quaternion.RotateTowards like so

Quaternion toRotation = Quaternion.LookRotation(rigidbody.velocity);
transform.rotation = Quaternion.RotateTowards(transform.rotation, toRotation, Time.deltaTime * yourSmoothingValue);
3

Im newby, but found yesterday those tutorials, maybe you find the answer there…

Slowly rotates towards the target:
http://unity3d.com/learn/tutorials/modules/intermediate/scripting/quaternions

Smoothly locate with Lerp…
http://unity3d.com/learn/tutorials/modules/beginner/scripting/lerp

Maybe it helps…

4

I’ve tried this way, and it won’t rotate properly… The camera is looking from the side with positive Z → right. I need to rotate my fish in negative, or positive X axis.