Distorted Android

        <activity android:name=".fragment3d.Fragment3DActivity" />

import org.distorted.examples.fragment3d.Fragment3DActivity;

   {

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

      item.put(ITEM_IMAGE, R.drawable.icon_example_fragment3d);

      item.put(ITEM_TITLE, (i+1)+". "+getText(R.string.example_fragment3d));

      item.put(ITEM_SUBTITLE, getText(R.string.example_fragment3d_subtitle));

      data.add(item);

      activityMapping.put(i++, Fragment3DActivity.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.fragment3d;

import android.app.Activity;

import android.opengl.GLSurfaceView;

import android.os.Bundle;

import android.view.Gravity;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.LinearLayout;

import android.widget.NumberPicker;

import android.widget.SeekBar;

import android.widget.SeekBar.OnSeekBarChangeListener;

import android.widget.Spinner;

import android.widget.TableRow;

import android.widget.TextView;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedBitmap;

import org.distorted.library.DistortedCubes;

import org.distorted.library.DistortedObject;

import org.distorted.library.EffectNames;

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

public class Fragment3DActivity extends Activity

                                implements OnSeekBarChangeListener,

                                           View.OnClickListener,

                                           AdapterView.OnItemSelectedListener

  {

  private static final int COLOR_OFF = 0xffffe81f;

  private static final int COLOR_ON  = 0xff0000ff;

  private boolean firstScreen;

  // fields needed for the first 'pick-a-shape' screen

  //

  private int mNumCols = 3;

  private int mNumRows = 3;

  private NumberPicker mColsPicker, mRowsPicker;

  private LinearLayout mLay;

  private boolean[] mShape;

  private DistortedObject mObject;

  private int mObjectType;

  private int mBitmap;

  // fields needed for the second 'apply fragment effects' screen

  //

  private SeekBar bar;

  private TextView textChroma, textAlpha, textBrightness, textSaturation, textCenter;

  private int chromaL, chromaR, chromaG, chromaB;

  private int alphaL;

  private int brightnessL;

  private int saturationL;

  private int centerX, centerY;

  private float fchromaL, fchromaR, fchromaG, fchromaB;

  private float falphaL;

  private float fbrightnessL;

  private float fsaturationL;

  private float fcenterX, fcenterY;

  private EffectNames[] effects = new EffectNames[4];

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

  @Override

  protected void onCreate(Bundle savedState)

    {

    super.onCreate(savedState);

    setContentView(R.layout.objectpickerlayout);

    mColsPicker = (NumberPicker)findViewById(R.id.objectpicker_cols);

    mRowsPicker = (NumberPicker)findViewById(R.id.objectpicker_rows);

    mColsPicker.setMaxValue(10);

    mColsPicker.setMinValue( 0);

    mRowsPicker.setMaxValue(10);

    mRowsPicker.setMinValue( 0);

    mColsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

      {

      @Override

      public void onValueChange(NumberPicker picker, int oldVal, int newVal)

        {

        mNumCols = mColsPicker.getValue();

        }

      });

    mRowsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener()

      {

      @Override

      public void onValueChange(NumberPicker picker, int oldVal, int newVal)

        {

        mNumRows = mRowsPicker.getValue();

        }

      });

    firstScreen = true;

    mObjectType = 0;

    Spinner typeSpinner  = (Spinner)findViewById(R.id.objectpicker_spinnerType);

    typeSpinner.setOnItemSelectedListener(this);

    String[] objectType = new String[] {"DistortedCubes", "DistortedBitmap"};

    ArrayAdapter<String> adapterType = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, objectType);

    adapterType.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    typeSpinner.setAdapter(adapterType);

    Spinner bitmapSpinner  = (Spinner)findViewById(R.id.objectpicker_spinnerBitmap);

    bitmapSpinner.setOnItemSelectedListener(this);

    String[] objectBitmap = new String[] {"Girl", "Dog", "Cat", "Grid"};

    ArrayAdapter<String> adapterBitmap = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, objectBitmap);

    adapterBitmap.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    bitmapSpinner.setAdapter(adapterBitmap);

    }

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

  private void setGrid()

    {

    mLay = (LinearLayout)findViewById(R.id.objectpicker_buttongrid);

    int width = mLay.getWidth();

    int height= mLay.getHeight();

    int w = mNumCols>0 ? (width / mNumCols) -10 : 0;

    int h = mNumRows>0 ? (height/ mNumRows) -10 : 0;

    int size= w<h ? w:h;

    int pad = size/20;

    mLay.removeAllViews();

    mShape = new boolean[mNumRows*mNumCols];

    TableRow.LayoutParams p = new android.widget.TableRow.LayoutParams();

    p.rightMargin  = pad;

    p.leftMargin   = pad;

    p.topMargin    = pad;

    p.bottomMargin = pad;

    p.height       = size;

    p.width        = size;

    for (int rows=0; rows<mNumRows; rows++)

      {

      TableRow tr = new TableRow(this);

      tr.setGravity(Gravity.CENTER);

      for(int cols=0; cols<mNumCols; cols++)

        {

        Button b = new Button(this);

        b.setOnClickListener(this);

        b.setId(rows*mNumCols+cols);

        b.setLayoutParams(p);

        b.setBackgroundColor(COLOR_ON);

        tr.addView(b, p);

        mShape[rows*mNumCols+cols] = true;

        }

      mLay.addView(tr);

      }

    }

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

  public DistortedObject getObject()

    {

    return mObject;

    }

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

  public void onClick(View view)

    {

    Button tmp = (Button)view;

    int id = tmp.getId();

    mShape[id] = !mShape[id];

    tmp.setBackgroundColor(mShape[id] ? COLOR_ON:COLOR_OFF);

    }

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

  public int getBitmap()

    {

    return mBitmap;

    }

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

  public void Continue(View v)

    {

    if( mObjectType==1 )

      {

      firstScreen = false;

      mObject = new DistortedBitmap(100,100,mNumCols);

      setContentView(R.layout.fragment3dlayout);

      Default(null);

      }

    else

      {

      View view = getLayoutInflater().inflate(R.layout.objectpicker2layout, null);

      setContentView(view);

      view.post(new Runnable() {

            @Override

            public void run() {

              setGrid();

            }

        });

      }

    }

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

  public void Create(View v)

    {

    firstScreen = false;

    String str = "";

    for(int i=0; i<mNumRows*mNumCols; i++)

      str += mShape[i] ? "1" : "0";

    mObject = new DistortedCubes(mNumCols, str, 10);

    setContentView(R.layout.fragment3dlayout);

    Default(null);

    }

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

  public void onItemSelected(AdapterView<?> parent, View view, int pos, long id)

    {

    switch(parent.getId())

      {

      case R.id.objectpicker_spinnerType  : mObjectType = pos; break;

      case R.id.objectpicker_spinnerBitmap: switch(pos)

                                              {

                                              case 0: mBitmap = R.raw.face; break;

                                              case 1: mBitmap = R.raw.dog;  break;

                                              case 2: mBitmap = R.raw.cat;  break;

                                              case 3: mBitmap = R.raw.grid; break;

                                              }

                                            break;

      }

    }

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

  public void onNothingSelected(AdapterView<?> parent)

    {

    }

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

// 'second screen' methods

  public void Default(View view)

    {

    effects[0] = EffectNames.CHROMA;

    effects[1] = EffectNames.ALPHA;

    effects[2] = EffectNames.BRIGHTNESS;

    effects[3] = EffectNames.SATURATION;

    chromaL = 0;

    chromaR = 0;

    chromaG = 0;

    chromaB = 0;

    alphaL     = 0;

    brightnessL= 0;

    saturationL= 0;

    centerX = 50;

    centerY = 50;

    textCenter = (TextView)findViewById(R.id.fragment3dcenterText);

    computeCenter();

    setCenterText();

    setBar(R.id.fragment3dcenterX, centerX);

    setBar(R.id.fragment3dcenterY, centerY);

    addViews();

    }

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

  private void addViews()

    {

    LinearLayout layout = (LinearLayout)findViewById(R.id.fragment3dlayout);

    layout.removeAllViews();

    View chroma    = getLayoutInflater().inflate(R.layout.fragment3dchroma    , null);

    View alpha     = getLayoutInflater().inflate(R.layout.fragment3dalpha     , null);

    View brightness= getLayoutInflater().inflate(R.layout.fragment3dbrightness, null);

    View saturation= getLayoutInflater().inflate(R.layout.fragment3dsaturation, null);

    for( int i=effects.length-1 ; i>=0 ; i-- )

      {

      switch(effects[i])

        {

        case CHROMA     : layout.addView(chroma    , 0); break;

        case ALPHA      : layout.addView(alpha     , 0); break;

        case BRIGHTNESS : layout.addView(brightness, 0); break;

        case SATURATION : layout.addView(saturation, 0); break;

        }

      }

    textChroma    = (TextView)findViewById(R.id.fragment3dchromaText);

    textAlpha     = (TextView)findViewById(R.id.fragment3dalphaText);

    textBrightness= (TextView)findViewById(R.id.fragment3dbrightnessText);

    textSaturation= (TextView)findViewById(R.id.fragment3dsaturationText);

    setChromaText();

    setAlphaText();

    setBrightnessText();

    setSaturationText();

    setBar(R.id.fragment3dchromaBar1, chromaL);

    setBar(R.id.fragment3dchromaBar2, chromaR);

    setBar(R.id.fragment3dchromaBar3, chromaG);

    setBar(R.id.fragment3dchromaBar4, chromaB);

    setBar(R.id.fragment3dalphaBar1     , alphaL);

    setBar(R.id.fragment3dbrightnessBar1, brightnessL);

    setBar(R.id.fragment3dsaturationBar1, saturationL);

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    view.getRenderer().setOrder(effects);

    }

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

  private void moveUp(EffectNames name)

    {

    int len = effects.length-1;

    int index = -1;

    for(int i=0; i<=len; i++)

      {

      if( effects[i]==name )

        {

        index=i;

        break;

        }

      }

    if( index==0 )

      {

      for(int i=0; i<len; i++)

        effects[i] = effects[i+1];

      effects[len] = name;

      }

    else if( index>0 )

      {

      effects[index]   = effects[index-1];

      effects[index-1] = name;

      }

    addViews();

    }

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

  public void ButtonChroma(View v)

    {

    moveUp(EffectNames.CHROMA);

    }

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

  public void ButtonAlpha(View v)

    {

    moveUp(EffectNames.ALPHA);

    }

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

  public void ButtonBrightness(View v)

    {

    moveUp(EffectNames.BRIGHTNESS);

    }

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

  public void ButtonSaturation(View v)

    {

    moveUp(EffectNames.SATURATION);

    }

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

  private void setBar(int id, int value)

    {

    bar = (SeekBar)findViewById(id);

    bar.setOnSeekBarChangeListener(this);

    bar.setProgress(value);

    }

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

  private void computeChroma()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    Fragment3DRenderer renderer = view.getRenderer();

    fchromaL = chromaL/100.0f;

    fchromaR = chromaR*255/100.0f;

    fchromaG = chromaG*255/100.0f;

    fchromaB = chromaB*255/100.0f;

    renderer.setChroma( fchromaL, fchromaR, fchromaG, fchromaB );

    }

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

  private void setChromaText()

    {

    fchromaL = ((int)(100*fchromaL))/100.0f;

    fchromaR = (float)((int)fchromaR);

    fchromaG = (float)((int)fchromaG);

    fchromaB = (float)((int)fchromaB);

    textChroma.setText("chroma("+fchromaL+"( "+fchromaR+" , "+fchromaG+" , "+fchromaB+" )");

    }

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

  private void computeAlpha()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    falphaL = alphaL/100.0f;

    view.getRenderer().setAlpha(falphaL);

    }

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

  private void setAlphaText()

    {

    falphaL = ((int)(100*falphaL))/100.0f;

    textAlpha.setText("alpha("+falphaL+")");

    }

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

  private void computeBrightness()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    fbrightnessL = brightnessL/100.0f;

    view.getRenderer().setBrightness( fbrightnessL );

    }

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

  private void setBrightnessText()

    {

    fbrightnessL = ((int)(100*fbrightnessL))/100.0f;

    textBrightness.setText("brightness("+fbrightnessL+")");

    }

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

  private void computeSaturation()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    fsaturationL = saturationL/100.0f;

    view.getRenderer().setSaturation( fsaturationL );

    }

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

  private void setSaturationText()

    {

    fsaturationL = ((int)(100*fsaturationL))/100.0f;

    textSaturation.setText("saturation("+fsaturationL+")");

    }

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

  private void computeCenter()

    {

    Fragment3DSurfaceView view = (Fragment3DSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    fcenterX = centerX;

    fcenterY = centerY;

    view.getRenderer().setCenter( fcenterX, fcenterY );

    }

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

  private void setCenterText()

    {

    fcenterX = ((int)(100*fcenterX))/100.0f;

    fcenterY = ((int)(100*fcenterY))/100.0f;

    textCenter.setText("center("+fcenterX+","+fcenterY+")");

    }

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

  public float getCenterX()

    {

    return fcenterX;

    }

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

  public float getCenterY()

    {

    return fcenterY;

    }

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

// Overrides

  @Override

  protected void onPause()

    {

    GLSurfaceView mView = (GLSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    if( mView!=null ) mView.onPause();

    super.onPause();

    }

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

  @Override

  protected void onResume()

    {

    super.onResume();

    GLSurfaceView mView = (GLSurfaceView)findViewById(R.id.fragment3dSurfaceView);

    if( mView!=null ) mView.onResume();

    }

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

  @Override

  public void onWindowFocusChanged(boolean hasFocus)

    {

    super.onWindowFocusChanged(hasFocus);

    if( firstScreen )

      {

      mColsPicker.setValue(mNumCols);

      mRowsPicker.setValue(mNumRows);

      }

    }

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

  @Override

  protected void onDestroy()

    {

    Distorted.onDestroy();

    super.onDestroy();

    }

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

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

    {

    switch (bar.getId())

      {

      case R.id.fragment3dcenterX       : centerX    = progress; computeCenter()    ; setCenterText()    ; break;

      case R.id.fragment3dcenterY       : centerY    = progress; computeCenter()    ; setCenterText()    ; break;

      case R.id.fragment3dchromaBar1    : chromaL    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dchromaBar2    : chromaR    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dchromaBar3    : chromaG    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dchromaBar4    : chromaB    = progress; computeChroma()    ; setChromaText()    ; break;

      case R.id.fragment3dalphaBar1     : alphaL     = progress; computeAlpha()     ; setAlphaText()     ; break;

      case R.id.fragment3dbrightnessBar1: brightnessL= progress; computeBrightness(); setBrightnessText(); break;

      case R.id.fragment3dsaturationBar1: saturationL= progress; computeSaturation(); setSaturationText(); 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.fragment3d;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.opengl.GLES20;

import android.opengl.GLSurfaceView;

import org.distorted.examples.R;

import org.distorted.library.Distorted;

import org.distorted.library.DistortedBitmap;

import org.distorted.library.DistortedCubes;

import org.distorted.library.DistortedObject;

import org.distorted.library.EffectNames;

import org.distorted.library.EffectTypes;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic2D;

import org.distorted.library.type.Dynamic3D;

import org.distorted.library.type.DynamicQuat;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import java.io.IOException;

import java.io.InputStream;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

class Fragment3DRenderer implements GLSurfaceView.Renderer

{

    private static final int SIZE = 100;

    private GLSurfaceView mView;

    private DistortedObject mObject;

    private DistortedBitmap mCenter;

    private float mFactorCen, mFactorObj;

    private int mObjWidth, mObjHeight;

    private DynamicQuat mQuatInt1, mQuatInt2;

    private EffectNames[] order;

    private Dynamic2D mCenterInter;

    private Dynamic3D mChromaInter, mMoveInter;

    private Dynamic1D mChromaLevelInter, mAlphaInter, mBrightnessInter, mSaturationInter;

    private Static2D mCenterPoint;

    private Static3D mChromaPoint, mMovePoint;

    private Static1D mChromaLevel, mAlphaPoint, mBrightnessPoint, mSaturationPoint;

    Static4D mQuat1, mQuat2;

    int mScreenMin;

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

    public void setChroma(float level, float r, float g, float b)

      {

      mChromaLevel.set(level);

      mChromaPoint.set(r, g, b);

      }

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

    public void setAlpha(float level)

      {

      mAlphaPoint.set(level);

      }

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

    public void setBrightness(float level)

      {

      mBrightnessPoint.set(level);

      }

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

    public void setSaturation(float level)

      {

      mSaturationPoint.set(level);

      }

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

    public void setCenter(float x, float y)

      {

      x = (0.012f*x-0.1f)*mObjWidth;

      y = (0.012f*y-0.1f)*mObjHeight;

      mCenterPoint.set(x,y);

      mMovePoint.set(mFactorObj*x,mFactorObj*y,0);

      }

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

    public void setOrder(EffectNames[] effects)

      {

      order = effects;

      setFragmentEffects();

      }

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

    private void setFragmentEffects()

      {

      mObject.abortEffects(EffectTypes.FRAGMENT);

      for( int i=0; i<=order.length-1 ; i++ )

        {

        switch(order[i])

          {

          case CHROMA    : mObject.chroma    ( mChromaLevelInter , mChromaInter) ; break;

          case ALPHA     : mObject.alpha     ( mAlphaInter                     ) ; break;

          case BRIGHTNESS: mObject.brightness( mBrightnessInter                ) ; break;

          case SATURATION: mObject.saturation( mSaturationInter                ) ; break;

          }

        }

      }

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

    public Fragment3DRenderer(GLSurfaceView v)

      {

      mView = v;

      mObject = ((Fragment3DActivity)v.getContext()).getObject();

      mCenter = new DistortedBitmap(SIZE, SIZE, 1);

      mObjWidth = mObject.getWidth();

      mObjHeight= mObject.getHeight();

      mCenterPoint    = new Static2D(0,0);

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

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

      mChromaLevel    = new Static1D(0);

      mAlphaPoint     = new Static1D(1);

      mBrightnessPoint= new Static1D(1);

      mSaturationPoint= new Static1D(0.5f);

      mCenterInter     = new Dynamic2D();

      mMoveInter       = new Dynamic3D();

      mChromaInter     = new Dynamic3D();

      mChromaLevelInter= new Dynamic1D();

      mAlphaInter      = new Dynamic1D();

      mBrightnessInter = new Dynamic1D();

      mSaturationInter = new Dynamic1D();

      mCenterInter.add(mCenterPoint);

      mMoveInter.add(mMovePoint);

      mChromaInter.add(mChromaPoint);

      mChromaLevelInter.add(mChromaLevel);

      mAlphaInter.add(mAlphaPoint);

      mBrightnessInter.add(mBrightnessPoint);

      mSaturationInter.add(mSaturationPoint);

      mQuat1 = new Static4D(0,0,0,1);  // unity

      mQuat2 = new Static4D(0,0,0,1);  // quaternions

      mQuatInt1 = new DynamicQuat(0,0.5f);

      mQuatInt2 = new DynamicQuat(0,0.5f);

      mQuatInt1.add(mQuat1);

      mQuatInt2.add(mQuat2);

      }

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

    public void onDrawFrame(GL10 glUnused) 

      {

      GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

      GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);

      long time = System.currentTimeMillis();

      mObject.draw(time);

      mCenter.draw(time);

      }

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

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

      {

      mScreenMin = width<height ? width:height;

      mObject.abortEffects(EffectTypes.MATRIX);

      mCenter.abortEffects(EffectTypes.MATRIX);

      int centerSize = mCenter.getWidth();

      if( width*mObjHeight > height*mObjWidth ) // screen is more 'horizontal' than the Object

        {

        mFactorObj = (0.70f*height)/mObjHeight;

        mFactorCen = (0.15f*height)/centerSize;

        }

      else

        {

        mFactorObj = (0.70f*width)/mObjWidth;

        mFactorCen = (0.15f*width)/centerSize;

        }

      Fragment3DActivity act = (Fragment3DActivity)mView.getContext();

      float cX = act.getCenterX();

      float cY = act.getCenterY();

      cX = (0.012f*cX-0.1f)*mObjWidth;

      cY = (0.012f*cY-0.1f)*mObjHeight;

      mMovePoint.set(cX*mFactorObj,cY*mFactorObj,0);

      Static3D rotateObj = new Static3D(mObjWidth/2,mObjHeight/2, 0);

      mObject.move( new Static3D( (width-mFactorObj*mObjWidth)/2 , (height-mFactorObj*mObjHeight)/2 , 0) );

      mObject.scale(mFactorObj);

      mObject.quaternion(mQuatInt1, rotateObj);

      mObject.quaternion(mQuatInt2, rotateObj);

      Static3D rotateCen = new Static3D(width/2,height/2, 0);

      mCenter.quaternion(mQuatInt1, rotateCen);

      mCenter.quaternion(mQuatInt2, rotateCen);

      mCenter.move( new Static3D( (width -mFactorCen*centerSize-mFactorObj*mObjWidth )/2 ,

                                  (height-mFactorCen*centerSize-mFactorObj*mObjHeight)/2 , 10) );

      mCenter.move(mMoveInter);

      mCenter.scale(mFactorCen);

      setFragmentEffects();

      Distorted.onSurfaceChanged(width, height); 

      }

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

    public void onSurfaceCreated(GL10 glUnused, EGLConfig config) 

      {

      Fragment3DActivity act = (Fragment3DActivity)mView.getContext();

      InputStream is1 = act.getResources().openRawResource(act.getBitmap());

      InputStream is2 = act.getResources().openRawResource(R.raw.center);

      Bitmap bitmap1,bitmap2;

      try 

        {

        bitmap1 = BitmapFactory.decodeStream(is1);

        bitmap2 = BitmapFactory.decodeStream(is2);

        }

      finally 

        {

        try 

          {

          is1.close();

          is2.close();

          } 

        catch(IOException e) { }

        }  

      mObject.setBitmap(bitmap1);

      mCenter.setBitmap(bitmap2);

      try

        {

        Distorted.onSurfaceCreated(mView.getContext());

        }

      catch(Exception ex)

        {

        android.util.Log.e("Fragment3D", 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.fragment3d;

import android.content.Context;

import android.opengl.GLSurfaceView;

import android.os.Build;

import android.util.AttributeSet;

import android.view.MotionEvent;

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

class Fragment3DSurfaceView extends GLSurfaceView

  {

  private int mX, mY;

  private Fragment3DRenderer mRenderer;

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

  public Fragment3DSurfaceView(Context c, AttributeSet attrs)

    {

    super(c, attrs);

    if(!isInEditMode())

      {

      setEGLContextClientVersion(2);

      if( Build.FINGERPRINT.startsWith("generic") )

        {

        setEGLConfigChooser(8, 8, 8, 8, 16, 0);

        }

      mRenderer = new Fragment3DRenderer(this);

      setRenderer(mRenderer);

      }

    }

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

  public Fragment3DRenderer getRenderer()

    {

    return mRenderer;

    }

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

  @Override

  public boolean onTouchEvent(MotionEvent event)

    {

    int action = event.getAction();

    int x = (int)event.getX();

    int y = (int)event.getY();

    switch(action)

      {

      case MotionEvent.ACTION_DOWN: mX = x;

                                    mY = y;

                                    break;

      case MotionEvent.ACTION_MOVE: if( mX>=0 && mY>= 0 )

                                      {

                                      float px = mY-y;

                                      float py = mX-x;

                                      float pz = 0;

                                      float plen = (float)Math.sqrt(px*px + py*py + pz*pz);

                                      if( plen>0 )

                                        {

                                        px /= plen;

                                        py /= plen;

                                        pz /= plen;

                                        float cosA = (float)Math.cos(plen*3.14f/mRenderer.mScreenMin);

                                        float sinA = (float)Math.sqrt(1-cosA*cosA);

                                        mRenderer.mQuat1.set(px*sinA, py*sinA, pz*sinA, cosA);

                                        }

                                      }

                                    break;

      case MotionEvent.ACTION_UP  : mX = -1;

                                    mY = -1;

                                    float qx = mRenderer.mQuat1.getX();

                                    float qy = mRenderer.mQuat1.getY();

                                    float qz = mRenderer.mQuat1.getZ();

                                    float qw = mRenderer.mQuat1.getW();

                                    float rx = mRenderer.mQuat2.getX();

                                    float ry = mRenderer.mQuat2.getY();

                                    float rz = mRenderer.mQuat2.getZ();

                                    float rw = mRenderer.mQuat2.getW();

                                    float tx = rw*qx - rz*qy + ry*qz + rx*qw;

                                    float ty = rw*qy + rz*qx + ry*qw - rx*qz;

                                    float tz = rw*qz + rz*qw - ry*qx + rx*qy;

                                    float tw = rw*qw - rz*qz - ry*qy - rx*qx;

                                    mRenderer.mQuat1.set(0f, 0f, 0f, 1f);

                                    mRenderer.mQuat2.set(tx, ty, tz, tw);

                                    break;

      }

    return true;

    }

}

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

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

                          android:id="@+id/fragment3dRowAlpha"

                          android:layout_width="match_parent"

                          android:layout_height="wrap_content"

                          android:orientation="horizontal">

                <LinearLayout

                    android:layout_width="0dp"

                    android:layout_height="wrap_content"

                    android:layout_weight="0.8"

                    android:orientation="vertical" >

                    <TextView

                        android:id="@+id/fragment3dalphaText"

                        android:layout_width="wrap_content"

                        android:layout_height="wrap_content"

                        android:layout_marginEnd="5dp"

                        android:layout_marginStart="5dp"

                        android:layout_marginTop="3dp"

                        />

                    <SeekBar

                        android:id="@+id/fragment3dalphaBar1"

                        android:layout_width="fill_parent"

                        android:layout_height="wrap_content"

                        android:layout_marginEnd="5dp"

                        android:layout_marginLeft="5dp"

                        android:layout_marginRight="5dp" />

                </LinearLayout>

                <Button

                    android:id="@+id/fragment3dUpAlpha"

                    android:layout_width="60dp"

                    android:layout_height="fill_parent"

                    android:onClick="ButtonAlpha"

                    android:text="@string/Up" />

            </LinearLayout>

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

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

                          android:id="@+id/fragment3dRowBrightness"

                          android:orientation="horizontal"

                          android:layout_width="match_parent"

                          android:layout_height="wrap_content" >

                <LinearLayout

                    android:layout_width="0dp"

                    android:layout_height="match_parent"

                    android:layout_weight="0.70"

                    android:orientation="vertical" >

                    <TextView

                        android:id="@+id/fragment3dbrightnessText"

                        android:layout_width="wrap_content"

                        android:layout_height="wrap_content"

                        android:layout_marginEnd="5dp"

                        android:layout_marginStart="5dp"

                        android:layout_marginTop="3dp"

                        />

                    <SeekBar

                        android:id="@+id/fragment3dbrightnessBar1"

                        android:layout_width="fill_parent"

                        android:layout_height="wrap_content"

                        android:layout_gravity="end"

                        android:layout_marginEnd="5dp"

                        android:layout_marginLeft="5dp"

                        android:layout_marginRight="5dp" />

                </LinearLayout>

                <Button

                    android:id="@+id/fragment3dUpBrightness"

                    android:layout_width="60dp"

                    android:layout_height="fill_parent"

                    android:onClick="ButtonBrightness"

                    android:text="@string/Up" />

            </LinearLayout>

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

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

                          android:id="@+id/fragment3dRowChroma"

                          android:orientation="horizontal"

                          android:layout_width="match_parent"

                          android:layout_height="wrap_content" >

                <LinearLayout

                    android:layout_width="0dp"

                    android:layout_height="match_parent"

                    android:layout_weight="0.70"

                    android:orientation="vertical" >

                    <TextView

                        android:id="@+id/fragment3dchromaText"

                        android:layout_width="wrap_content"

                        android:layout_height="wrap_content"

                        android:layout_marginEnd="5dp"

                        android:layout_marginStart="5dp"

                        android:layout_marginTop="3dp"

                        />

                    <SeekBar

                        android:id="@+id/fragment3dchromaBar1"

                        android:layout_width="fill_parent"

                        android:layout_height="wrap_content"

                        android:layout_gravity="end"

                        android:layout_marginEnd="5dp"

                        android:layout_marginLeft="5dp"

                        android:layout_marginRight="5dp" />

                    <LinearLayout

                        android:orientation="horizontal"

                        android:layout_width="match_parent"

                        android:layout_height="match_parent">

                        <SeekBar

                            android:id="@+id/fragment3dchromaBar2"

                            android:layout_width="fill_parent"

                            android:layout_height="wrap_content"

                            android:layout_marginLeft="5dp"

                            android:layout_marginRight="5dp"

                            android:layout_weight="0.33"/>

                        <SeekBar

                            android:id="@+id/fragment3dchromaBar3"

                            android:layout_width="fill_parent"

                            android:layout_height="wrap_content"

                            android:layout_marginEnd="5dp"

                            android:layout_marginLeft="5dp"

                            android:layout_marginRight="5dp"

                            android:layout_weight="0.33"/>

                        <SeekBar

                            android:id="@+id/fragment3dchromaBar4"

                            android:layout_width="fill_parent"

                            android:layout_height="wrap_content"

                            android:layout_marginRight="5dp"

                            android:layout_marginLeft="5dp"

                            android:layout_weight="0.33"/>

                    </LinearLayout>

                </LinearLayout>

                <Button

                    android:id="@+id/fragment3dUpChroma"

                    android:layout_width="60dp"

                    android:layout_height="fill_parent"

                    android:onClick="ButtonChroma"

                    android:text="@string/Up" />

            </LinearLayout>

<?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.fragment3d.Fragment3DSurfaceView

        android:id="@+id/fragment3dSurfaceView"

        android:layout_width="fill_parent"

        android:layout_height="0dp"

        android:layout_weight="1" />

    <LinearLayout

        android:orientation="horizontal"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginBottom="5dp"

        android:background="@android:color/holo_green_dark">

        <LinearLayout

            android:orientation="vertical"

            android:layout_width="0dp"

            android:layout_height="match_parent"

            android:layout_weight="0.8">

            <TextView

                android:id="@+id/fragment3dcenterText"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_marginEnd="5dp"

                android:layout_marginStart="5dp"

                android:layout_marginTop="3dp"

                />

            <LinearLayout

                android:orientation="horizontal"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                >

                <SeekBar

                    android:layout_width="fill_parent"

                    android:layout_height="wrap_content"

                    android:id="@+id/fragment3dcenterX"

                    android:layout_weight="0.5"

                    android:paddingLeft="5dp"

                    android:paddingRight="3dp"/>

                <SeekBar

                    android:layout_width="fill_parent"

                    android:layout_height="wrap_content"

                    android:id="@+id/fragment3dcenterY"

                    android:layout_weight="0.5"

                    android:paddingLeft="3dp"

                    android:paddingRight="5dp"/>

            </LinearLayout>

        </LinearLayout>

        <Button

            android:id="@+id/buttonDefault"

            android:layout_width="60dp"

            android:layout_height="wrap_content"

            android:onClick="Default"

            android:text="@string/reset"

            android:layout_gravity="right"

            android:layout_marginTop="3dp"/>

    </LinearLayout>

    <ScrollView

        android:id="@+id/fragment3dscrollView"

        android:layout_width="match_parent"

        android:layout_height="0dp"

        android:layout_weight="0.82" >

        <LinearLayout

            android:id="@+id/fragment3dlayout"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:orientation="vertical" >

        </LinearLayout>

    </ScrollView>

</LinearLayout>

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

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

                          android:id="@+id/fragment3dRowSaturation"

                          android:orientation="horizontal"

                          android:layout_width="match_parent"

                          android:layout_height="wrap_content" >

                <LinearLayout

                    android:layout_width="0dp"

                    android:layout_height="match_parent"

                    android:layout_weight="0.70"

                    android:orientation="vertical" >

                    <TextView

                        android:id="@+id/fragment3dsaturationText"

                        android:layout_width="wrap_content"

                        android:layout_height="wrap_content"

                        android:layout_marginEnd="5dp"

                        android:layout_marginStart="5dp"

                        android:layout_marginTop="3dp"

                        />

                    <SeekBar

                        android:id="@+id/fragment3dsaturationBar1"

                        android:layout_width="fill_parent"

                        android:layout_height="wrap_content"

                        android:layout_gravity="end"

                        android:layout_marginEnd="5dp"

                        android:layout_marginLeft="5dp"

                        android:layout_marginRight="5dp" />

                </LinearLayout>

                <Button

                    android:id="@+id/fragment3dUpSaturation"

                    android:layout_width="60dp"

                    android:layout_height="fill_parent"

                    android:onClick="ButtonSaturation"

                    android:text="@string/Up" />

            </LinearLayout>

    <string name="example_fragment3d">3D Fragment Effects</string>

    <string name="example_fragment3d_subtitle">Test results of Fragment effects on a 3D object.</string>