Distorted Android

        <activity android:name=".postprocesstree.PostprocessTreeActivity"/>

import org.distorted.examples.postprocesstree.PostprocessTreeActivity;

   {

      final Map<String, Object> item = new HashMap<>();

      item.put(ITEM_IMAGE, R.drawable.icon_example_postprocesstree);

      item.put(ITEM_TITLE, (i+1)+". "+getText(R.string.example_postprocesstree));

      item.put(ITEM_SUBTITLE, getText(R.string.example_postprocesstree_subtitle));

      data.add(item);

      activityMapping.put(i++, PostprocessTreeActivity.class);

   }

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

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

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

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

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

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

package org.distorted.examples.postprocesstree;

import android.app.Activity;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.widget.SeekBar;

import android.widget.TextView;

import org.distorted.examples.R;

import org.distorted.library.main.Distorted;

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

public class PostprocessTreeActivity extends Activity implements SeekBar.OnSeekBarChangeListener

{

    private TextView mText;

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

    @Override

    protected void onCreate(Bundle savedState)

      {

      super.onCreate(savedState);

      setContentView(R.layout.postprocesstreelayout);

      mText = (TextView)findViewById(R.id.postprocesstreeText);

      SeekBar bar = (SeekBar)findViewById(R.id.postprocesstreeSeek);

      bar.setOnSeekBarChangeListener(this);

      bar.setProgress(50);

      }

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

    @Override

    protected void onPause()

      {

      GLSurfaceView view = (GLSurfaceView) this.findViewById(R.id.postprocesstreeSurfaceView);

      view.onPause();

      Distorted.onPause();

      super.onPause();

      }

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

    @Override

    protected void onResume()

      {

      super.onResume();

      GLSurfaceView view = (GLSurfaceView) this.findViewById(R.id.postprocesstreeSurfaceView);

      view.onResume();

      }

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

    @Override

    protected void onDestroy()

      {

      Distorted.onDestroy();

      super.onDestroy();

      }

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

    public void onProgressChanged(SeekBar bar, int progress, boolean fromUser)

      {

      PostprocessTreeSurfaceView view = (PostprocessTreeSurfaceView) this.findViewById(R.id.postprocesstreeSurfaceView);

      switch (bar.getId())

        {

        case R.id.blurSeek: int level = view.getRenderer().setBlur(progress);

                            mText.setText(getString(R.string.blur_placeholder,level));

                            break;

        }

      }

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

    public void onStartTrackingTouch(SeekBar bar) { }

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

    public void onStopTrackingTouch(SeekBar bar)  { }

}

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

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

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

package org.distorted.examples.postprocesstree;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.effect.FragmentEffectChroma;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectRotate;

import org.distorted.library.effect.MatrixEffectScale;

import org.distorted.library.effect.PostprocessEffectBlur;

import org.distorted.library.main.Distorted;

import org.distorted.library.main.DistortedEffects;

import org.distorted.library.main.DistortedNode;

import org.distorted.library.main.DistortedScreen;

import org.distorted.library.main.DistortedTexture;

import org.distorted.library.main.MeshFlat;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class PostprocessTreeRenderer implements GLSurfaceView.Renderer

{

   private static final int LEAF_SIZE = 100;

   private static final int NUM_LEAVES  = 8;

   private GLSurfaceView mView;

   private DistortedTexture mLeaf;

   private DistortedScreen mScreen;

   private int mScreenW, mScreenH;

   private Static3D mMove, mInnerScale, mOuterScale;

   private Static1D mRadiusSta;

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

   PostprocessTreeRenderer(GLSurfaceView v)

      {     

      mView = v;

      mScreenW = 9*LEAF_SIZE;

      mScreenH = 9*LEAF_SIZE;

      mRadiusSta = new Static1D(5);

      Dynamic1D radiusDyn = new Dynamic1D();

      radiusDyn.add(mRadiusSta);

      mLeaf = new DistortedTexture(LEAF_SIZE,LEAF_SIZE);

      MeshFlat mesh = new MeshFlat(1,1);

      mMove = new Static3D(0,0,0);

      mInnerScale= new Static3D(1,1,1);

      mOuterScale= new Static3D(1,1,1);

      DistortedEffects rootEffects  = new DistortedEffects();

      DistortedEffects innerEffects = new DistortedEffects();

      DistortedEffects[] innerLeafEffects= new DistortedEffects[NUM_LEAVES];

      DistortedEffects[] outerLeafEffects= new DistortedEffects[NUM_LEAVES];

      DistortedNode root = new DistortedNode(new DistortedTexture(mScreenW,mScreenH), rootEffects, mesh);

      DistortedNode[] innerLeafNodes = new DistortedNode[NUM_LEAVES];

      DistortedNode[] outerLeafNodes = new DistortedNode[NUM_LEAVES];

      rootEffects.apply(new MatrixEffectMove(mMove));

      rootEffects.apply(new MatrixEffectScale(mOuterScale));

      Dynamic1D rot = new Dynamic1D(5000,0.0f);

      rot.setMode(Dynamic1D.MODE_JUMP);

      rot.add(new Static1D(  0));

      rot.add(new Static1D(360));

      Static3D center = new Static3D(3*LEAF_SIZE/2, 3*LEAF_SIZE/2, 0);

      Static3D axis   = new Static3D(0,0,1);

      Static3D innerMoveVector = new Static3D(0,  LEAF_SIZE,0);

      Static3D outerMoveVector = new Static3D(0,3*LEAF_SIZE,0);

      for(int j=0; j<NUM_LEAVES; j++)

        {

        outerLeafEffects[j] = new DistortedEffects();

        outerLeafEffects[j].apply( new MatrixEffectRotate(new Static1D(j*(360/NUM_LEAVES)), axis, center) );

        outerLeafEffects[j].apply(new MatrixEffectMove(outerMoveVector));

        outerLeafNodes[j] = new DistortedNode( mLeaf, outerLeafEffects[j], mesh);

        root.attach(outerLeafNodes[j]);

        }

      innerEffects.apply( new MatrixEffectMove(new Static3D( mScreenW/2, mScreenH/2, 0)) );

      innerEffects.apply( new MatrixEffectRotate(rot, axis, center) );

      rootEffects.apply(new MatrixEffectScale(mInnerScale));

      innerEffects.apply( new FragmentEffectChroma(new Static1D(0.5f), new Static3D(1,0,0) ) );

      DistortedNode innerNode = new DistortedNode( new DistortedTexture(3*LEAF_SIZE,3*LEAF_SIZE), innerEffects, mesh);

      root.attach(innerNode);

      for(int j=0; j<NUM_LEAVES; j++)

        {

        innerLeafEffects[j] = new DistortedEffects();

        innerLeafEffects[j].apply( new MatrixEffectRotate(new Static1D(j*(360/NUM_LEAVES)), axis, center) );

        innerLeafEffects[j].apply(new MatrixEffectMove(innerMoveVector));

        innerLeafNodes[j] = new DistortedNode( mLeaf, innerLeafEffects[j], mesh);

        innerNode.attach(innerLeafNodes[j]);

        }

      mScreen = new DistortedScreen();

      mScreen.attach(root);

      }

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

   int setBlur(int blur)

     {

     int radius = blur/2;

     mRadiusSta.set(radius);

     return radius;

     }

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

   public void onDrawFrame(GL10 glUnused)

     {

     mScreen.render(System.currentTimeMillis());

     }

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

   public void onSurfaceChanged(GL10 glUnused, int width, int height)

     {

     float iFactor, oFactor;

     if( (float)mScreenH/mScreenW > (float)height/width )

       {

       int w = (height*mScreenW)/mScreenH;

       oFactor = (float)height/mScreenH;

       iFactor = 0.3f*oFactor;

       mMove.set((width-w)/2 ,0, 0);

       }

     else

       {

       int h = (width*mScreenH)/mScreenW;

       oFactor = (float)width/mScreenW;

       iFactor = 0.3f*oFactor;

       mMove.set(0,(height-h)/2,0);

       }

     mOuterScale.set(oFactor,oFactor,oFactor);

     mInnerScale.set(iFactor,iFactor,iFactor);

     mScreen.resize(width, height);

     }

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

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

     {

     InputStream is = mView.getContext().getResources().openRawResource(R.raw.leaf);

     Bitmap leaf;

     try

       {

       leaf = BitmapFactory.decodeStream(is);

       }

     finally

       {

       try

         {

         is.close();

         }

       catch(IOException e) { }

       }

     mLeaf.setTexture(leaf);

     FragmentEffectChroma.enable();

     PostprocessEffectBlur.enable();

     try

       {

       Distorted.onCreate(mView.getContext());

       }

     catch(Exception ex)

       {

       android.util.Log.e("PostprocessTree", ex.getMessage() );

       }

     }

}

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

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

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

package org.distorted.examples.postprocesstree;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.opengl.GLSurfaceView;

import android.util.AttributeSet;

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

class PostprocessTreeSurfaceView extends GLSurfaceView

{

    private PostprocessTreeRenderer mRenderer;

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

    public PostprocessTreeSurfaceView(Context context, AttributeSet attrs)

      {

      super(context,attrs);

      if(!isInEditMode())

        {

        mRenderer = new PostprocessTreeRenderer(this);

        final ActivityManager activityManager     = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);

        final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();

        setEGLContextClientVersion( (configurationInfo.reqGlEsVersion>>16) >= 3 ? 3:2 );

        setRenderer(mRenderer);

        }

      }

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

    PostprocessTreeRenderer getRenderer()

      {

      return mRenderer;

      }

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <org.distorted.examples.postprocesstree.PostprocessTreeSurfaceView

        android:id="@+id/postprocesstreeSurfaceView"

        android:layout_width="fill_parent"

        android:layout_height="0dp"

        android:layout_weight="1" />

    <LinearLayout

        android:id="@+id/linearLayout1"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:gravity="center|fill_horizontal"

        android:orientation="horizontal" >

        <TextView

                android:id="@+id/postprocesstreeText"

                android:layout_width="150dp"

                android:layout_height="wrap_content"

                android:layout_weight="0.5"

                android:gravity="center_vertical|center"

                android:text="@string/blur"

                android:textAppearance="?android:attr/textAppearanceMedium" />

        <SeekBar

                android:id="@+id/postprocesstreeSeek"

                android:layout_width="fill_parent"

                android:layout_height="wrap_content"

                android:layout_weight="1"

                android:paddingLeft="15dp"

                android:paddingRight="10dp" />

    </LinearLayout>

</LinearLayout>

    <string name="example_postprocesstree">Postprocess Tree</string>

    <string name="example_postprocesstree_subtitle">Three layers of postprocessed surfaces.</string>