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// Grab mouse position on terrain chunk and remove the appropriate cube

Ray ray = Camera.main.ScreenPointToRay(new Vector2(Screen.width/2, Screen.height/2)); //Input.mousePosition);

RaycastHit hit = new RaycastHit();



if (collider.Raycast(ray, out hit, 10.0f))

{

Vector3 hp = hit.point + 0.0001f * ray.direction;



int xHit = Mathf.CeilToInt(hp.x) - 1;

int yHit = Mathf.CeilToInt(hp.y) - 1;

int zHit = Mathf.CeilToInt(hp.z) - 1;



TerrainBrain.Instance().setTerrainDensity(xHit, yHit, zHit);