void UpdateBrushCursor(){
Vector3 uvWorldPosition=Vector3.zero;
if (HitTestUVPosition (ref uvWorldPosition) && !saving) {
brushCursor.SetActive(true);
brushCursor.transform.position =uvWorldPosition+brushContainer.transform.position;
} else {
brushCursor.SetActive(false);
}
}
//Returns the position on the texuremap according to a hit in the mesh collider