Object Scaling problem

Unity Engine
1

Why the object after scaling at run time slide and shaking on the plane.

My scene has only a place( scale it 7 times larger ) and a cube with rigidbody( use gravity and freezerotation ), turn the cube around the up axis a little bit. In a script

function Update () {
	if( Input.GetMouseButton(0) ){
			scale = Input.GetAxis("Mouse X");
			transform.localScale += Vector3.one * scale;
	}
}

whenever the cube is scale large enough during run time it will start sliding and shaking. Can anyone please help me solve this problem?

Thanks in advance.

2

I tried your code out, and yes the cube does start bouncing around if you make it big enough.

What seems to solve the problem is to give the rigidbody a little drag.

When a cube is enlarged, the movement generated by the scaling will give a small velocity for small cubes, but a larger veloctiy for large cubes.
A small velocity will fall below the “sleep velocity” (which is set up under the “Edit/Project Settings/Physics” menu.)
However, once you have a sufficiently large movement this threshold will be exceeded, and the object will keep moving.

But, as I said, adding a little drag to the rigidbody calms things down.

3

Thanks cblarsen, that’s solved my problem. :smile: :smile: