Voxel Terrain

using UnityEngine;
using UnityEditor;
using System.Collections;

public class VoxTerrain{

    public static int width = 10;
    public static int height = 10;
    public static int depth = 10;
    public float cubesize = 1;
    public float[,,] terrainarray = new float[width,height,depth];
    public GameObject terrain = new GameObject("Terrain");

    public VoxTerrain(){

    }
    // Use this for initialization
    void Start () {
    }

    // Update is called once per frame
    void Update () {
    }


    public void GenerateEmpty(){
        terrain.transform.position=new Vector3(0,0,0);
        for(int x = 0; x < width; x++){
            for(int y = 0; y < height; y++){
                for(int z = 0; z < height; z++){
                    terrainarray[x,y,z]=0F;
                }
            }
        }
        for(int x = 0; x < width; x++){
            for(int y = 0; y < height-5; y++){
                for(int z = 0; z < height; z++){
                    terrainarray[x,y,z]=1F;
                }
            }
        }
        RenderCubes();
    }



    void MakeTriangles(){
        for(int x = 0; x < width; x++){
            for(int y = 0; y < height; y++){
                for(int z = 0; z < height; z++){

                }
            }
        }
    }

    void addnewcube(){
        //Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
    }

    void RenderCubes(){
        for(int x = 0; x < width; x++){
            //CombineInstance[] combine = new CombineInstance[width*height*depth];
            for(int y = 0; y < height; y++){
                for(int z = 0; z < height; z++){
                    if(terrainarray[x,y,z]==1){
                        /*if(terrainarray[x+1,y,z]==0 || terrainarray[x,y+1,z]==0 || terrainarray[x,y,z+1]==0
                    ||terrainarray[x+1,y+1,z]==0 || terrainarray[x,y+1,z+1]==0 || terrainarray[x+1,y,z+1]==0 || terrainarray[x+1,y+1,z+1]==0||terrainarray[x-1,y,z]==0 || terrainarray[x,y-1,z]==0 || terrainarray[x,y,z-1]==0||terrainarray[x-1,y-1,z]==0 || terrainarray[x,y-1,z+1]==0 || terrainarray[x-1,y,z+1]==0 || terrainarray[x-1,y-1,z-1]==0){*/
                        GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
                        cube.transform.position = new Vector3(x*cubesize,y*cubesize,z*cubesize);
                        cube.transform.parent = terrain.transform;
                        //MeshFilter meshfilter = cube.GetComponent<MeshFilter>();
                        //meshfilter.sharedMesh.CombineMeshes(combine);
                        //}
                    }
                }
            }
        }
    }


    void RenderTriangle(Vector3 x, Vector3 y, Vector3 z){
        GL.PushMatrix();
        GL.Begin(GL.TRIANGLES);
        GL.Vertex3(x.x,x.y,x.z);
        GL.Vertex3(y.x,y.y,y.z);
        GL.Vertex3(z.x,z.y,z.z);
        GL.End();
        GL.PopMatrix();
    }
}