Distorted Android

///////////////////////////////////////////////////////////////////////////////////////////////////

// return the total number of render calls issued

  int draw(long currTime, DistortedOutputSurface surface)

    {

    DistortedInputSurface input = mNumChildren[0]==0 ? mSurface : mData.mFBO;

    if( input.setAsInput() )

      {

      mState.apply();

      mEffects.drawPriv(mSurface.getWidth()/2.0f, mSurface.getHeight()/2.0f, mMesh, surface, currTime);

      return 1;

      }

    return 0;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

// return the total number of render calls issued

  int renderRecursive(long currTime)

    {

    int numRenders = 0;

    if( mNumChildren[0]>0 && mData.currTime!=currTime )

      {

      mData.currTime = currTime;

      for (int i=0; i<mNumChildren[0]; i++)

        {

        numRenders += mChildren.get(i).renderRecursive(currTime);

        }

      mData.mFBO.setAsOutput();

      GLES30.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);

      GLES30.glClear( GLES30.GL_DEPTH_BUFFER_BIT | GLES30.GL_COLOR_BUFFER_BIT);

      if( mSurface.setAsInput() )

        {

        numRenders++;

        DistortedEffects.blitPriv(mData.mFBO);

        }

      // 'renderChildren'

      for(int i=0; i<mNumChildren[0]; i++)

        {

        numRenders += mChildren.get(i).draw(currTime,mData.mFBO);

        }

      }

    return numRenders;

    }