How do I create bouncy ball object like rubber?

Unity Engine
1

I’d like to create bouncy ball object which make change.
I think that I must use mesh renderer.
But, I don’t know how to this.

I guess I may use like that.

    var mesh : Mesh = GetComponent(MeshFilter).mesh;
    var vertices : Vector3[] = mesh.vertices;
    var normals : Vector3[] = mesh.normals;

    hoge bar;
2

Attach a rigid body to a sphere and apply the “Bouncy” physics material from the standard assets?

3

Couldn’t have said it better. And take a look at this.

Edit: If it’s mesh deformation you are talking about, not sure how to do it but you can check out Mega-fiers

4

Re-reading it im beginning to suspect he wants a soft body effect so the ball deforms when it hits the ground…

5

Thank you for replying

Re:Headingwest

Attach a rigid body to a sphere and apply the “Bouncy” physics material from the standard assets?
thanks. but, It is not I wanted to say. I wanna make to “change shape” the ball.

a soft body
Yes, I want to say. I couldn’t explain in English well…

Re:zine92

Mega-fiers
It is my image. but, It is not free.
Can you show me a JavaScript code?

6

And, I want to use it in both iOS and Android.

7

Actually scripts you write can be compiled to both provided you have the licenses for both. But as to how to do mesh deformation. I am not too sure about it. Can’t help you much.

8

If all you want is a stretch/squash, then you could just scale the mesh along a specific axis.

void OnCollisionEnter(Collider other)  {
   
   float XScale = transform.localScale.X;
   float YScale = transform.localScale.Y;
   float ZScale = transform.localScale.Z;

   YScale = Mathf.MoveTowards(YScale, 0.6f, 0.03f);

   transform.localScale = new Vector3(XScale, YScale, ZScale);

}

You’d need to do a lot of modifications to that script to make it work, especially if you’re doing your project in JS, but it shows the general idea.

Hope that helps!

9

This is a pretty decent thing to look at for different effects

http://unity3d.com/support/resources/example-projects/procedural-examples.html

10

HI
do you mean “Crumple mesh modifier”?

11

Added a rubber material modifier to MegaFiers might be what you are looking for.

12

Maybe what you seek is something like this:
http://forum.unity3d.com/threads/103858-Soft-Elastic-Material

13

Apologies for bumping such an old thread, but this thread still comes up when googling this question but there’s no real answer or solution here.
I looked around for a while and found this FREE asset on the unity web store that lets you create softbody physics: Unity Asset Store - The Best Assets for Game Making (it’s called Bullet Physics For Unity)

1 Like
14

That’s really amazing man, thanks a lot !!

15

Because this comes up in searches for example Physics Materials, here are the original Bouncy, Ice, MaxFriction, Metal, Rubber, Wood, and ZeroFriction from Unity:

http://exninja.com/files/PhysicsMaterials_From_Standard_Assets.unitypackage

3409403–268493–PhysicsMaterials_From_Standard_Assets.unitypackage (1.42 KB)