public void insertEffect(int index, IPostProcessingEffect multiPass) {
   multiPass.initialize(mRenderer);
   mComponents.addAll(index, multiPass.getPasses());
   mComponentsDirty = true;
 }
 public void addEffect(IPostProcessingEffect multiPass) {
   multiPass.initialize(mRenderer);
   mComponents.addAll(multiPass.getPasses());
   mComponentsDirty = true;
 }