void CreateCSGCube(Vector3 position, float height)
{        GameObject cube = new GameObject("CSG Cube");
    cube.transform.position = position;

    var csgBrush = cube.AddComponent<CSGBrush>();
    csgBrush.transform.localScale = new Vector3(cubeBaseSize, height, cubeBaseSize);
    csgBrush.transform.SetParent(csgParent.transform);

    ApplyMaterials(csgBrush);
}
void ApplyMaterials(CSGBrush csgBrush)
{
    if (csgBrush == null)
    {
        Debug.LogError("CSGBrush for zero");
        return;
    }

    var surfaces = csgBrush.Shape.TexGens;
    Debug.Log(surfaces);
    if (surfaces != null)
    {
        Debug.Log("RenderMaterial select ");
        for (int i = 0; i < surfaces.Length; i++)
        {
            surfaces[i].RenderMaterial = colorDirtMaterial; 
        }

        surfaces[4].RenderMaterial = colorGrassMaterial; 

        csgBrush.Shape.TexGens = surfaces;
        Debug.Log(surfaces);
    }
    else
    {
        Debug.LogWarning("RenderMaterial not select CSGBrush.");
    }
    
    
}