Creating ocean waves of different widths using Mathf.Sin()

Code (csharp):

1.  
2. var scale=5f;
3. var speed=1f;
4. private var base_height:Vector3[];
5.  
6. function Update(){
7.     var mesh=GetComponent(MeshFilter).mesh;
8.     if(!base_height) base_height=mesh.vertices;
9.  
10.     var vertices=new Vector3[base_height.Length];
11.     for(var i=0;i<vertices.Length;i++){
12.         var vertex=base_height[i];
13.         vertex.y+=Mathf.Sin(Time.time * speed + vertex.x) * scale;
14.         vertices[i]=vertex;
15.         }
16.  
17.     mesh.vertices=vertices;
18.     mesh.RecalculateNormals();
19.     }
20.  

This code sends a wave through a plane that I am using as an ocean. I need to be able to change the frequency of the waves (wavelength), can someone tell me how?

I need them to be higher frequency. I don't understand sine waves yet, I've tried to learn and will continue to, but right now it eludes me.

 

vertex.y+=Mathf.Sin( (Time.time * speed + vertex.x) * freq) * scale;

 

Thanks it works perfect although I don't understand how all the arguments in Mathf.Sin() come together to create these effects.

 

Magic