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examples / src / main / java / org / distorted / examples / objecttree / ObjectTreeRenderer.java @ 2e779512

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.examples.objecttree;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.opengles.GL10;
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import org.distorted.examples.R;
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import org.distorted.library.effect.FragmentEffectChroma;
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import org.distorted.library.effect.MatrixEffectRotate;
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import org.distorted.library.effect.MatrixEffectScale;
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import org.distorted.library.effect.VertexEffectSink;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedFramebuffer;
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import org.distorted.library.main.DistortedNode;
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import org.distorted.library.main.DistortedScreen;
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import org.distorted.library.main.DistortedLibrary;
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import org.distorted.library.mesh.MeshCubes;
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import org.distorted.library.mesh.MeshRectangles;
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import org.distorted.library.main.DistortedTexture;
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import org.distorted.library.type.Dynamic;
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import org.distorted.library.type.Dynamic1D;
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import org.distorted.library.type.Static1D;
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import org.distorted.library.type.Static3D;
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import org.distorted.library.type.Static4D;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.opengl.GLES31;
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import android.opengl.GLSurfaceView;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class ObjectTreeRenderer implements GLSurfaceView.Renderer
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{
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   private GLSurfaceView mView;
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   private DistortedEffects mEffects;
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   private DistortedTexture mLisaTexture, mGridTexture;
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   private DistortedScreen mScreen;
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   private DistortedNode mRoot;
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   private MeshRectangles mMeshRectangles;
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   private MeshCubes mMeshCubes;
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   private boolean mDepth;
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   private Static3D mScale;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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   ObjectTreeRenderer(GLSurfaceView v)
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      {
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      mView   = v;
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      mDepth  = true;
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      mScale  = new Static3D(1,1,1);
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      Dynamic1D chromaDyn = new Dynamic1D(5000,0.0f);
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      chromaDyn.add(new Static1D(0.0f));
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      chromaDyn.add(new Static1D(0.8f));
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      mEffects= new DistortedEffects();
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      mEffects.apply(new MatrixEffectScale(mScale));
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      mEffects.apply(new FragmentEffectChroma(chromaDyn, new Static3D(0,0,1)));
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      mScreen = new DistortedScreen();
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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   private void setDepthPriv()
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     {
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     if( mDepth ) mRoot.glEnable (GLES31.GL_DEPTH_TEST);
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     else         mRoot.glDisable(GLES31.GL_DEPTH_TEST);
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     mRoot.glDepthMask(mDepth);
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     // we can also, to save memory, delete/recreate
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     // the depth buffer each time. This is optional.
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     mRoot.enableDepthStencil(mDepth ? DistortedFramebuffer.DEPTH_NO_STENCIL:DistortedFramebuffer.NO_DEPTH_NO_STENCIL);
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     }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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   void setDepth(boolean depth)
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      {
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      mDepth = depth;
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      if( mRoot!=null ) setDepthPriv();
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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   public void onDrawFrame(GL10 glUnused)
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      {
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      mScreen.render(System.currentTimeMillis());
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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   public void onSurfaceChanged(GL10 glUnused, int width, int height)
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      {
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      float horiRatio = (float)width / mLisaTexture.getWidth();
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      float vertRatio = (float)height/ mLisaTexture.getHeight();
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      float factor    = horiRatio > vertRatio ? vertRatio : horiRatio;
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      mScale.set( factor,factor,factor );
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      mScreen.resize(width, height);
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)
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      {
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      // TODO
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      // This appears to be needed in case we create the app anew with NO DEPTH
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      // (i.e. we set 'no depth' and then rotate screen). Investigate.
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      GLES31.glEnable(GLES31.GL_CULL_FACE);
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      GLES31.glCullFace(GLES31.GL_BACK);
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      GLES31.glFrontFace(GLES31.GL_CW);
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      Resources res = mView.getContext().getResources();
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      InputStream is1 = res.openRawResource(R.raw.monalisa);
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      InputStream is2 = res.openRawResource(R.raw.grid);
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      Bitmap bitmap1, bitmap2;
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      try 
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        {
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        bitmap1 = BitmapFactory.decodeStream(is1);
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        bitmap2 = BitmapFactory.decodeStream(is2);
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        } 
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      finally 
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        {
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        try 
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          {
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          is1.close();
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          is2.close();
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          } 
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        catch(IOException e) { }
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        }  
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      final int GRID = 20;
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      final Static4D mapFB = new Static4D(0.0f,0.0f,1.0f     ,1.0f     );
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      final Static4D mapLR = new Static4D(0.0f,0.0f,1.0f/GRID,1.0f     );
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      final Static4D mapTB = new Static4D(0.0f,0.0f,1.0f     ,1.0f/GRID);
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      int lisaWidth = bitmap1.getWidth();
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      int lisaHeight= bitmap1.getHeight();
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      int gridWidth = bitmap2.getWidth();
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      int gridHeight= bitmap2.getHeight();
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      int gridDepth = gridWidth/GRID;
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      if( mLisaTexture==null ) mLisaTexture = new DistortedTexture();
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      if( mGridTexture==null ) mGridTexture = new DistortedTexture();
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      mLisaTexture.setTexture(bitmap1);
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      mGridTexture.setTexture(bitmap2);
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      DistortedEffects gridEffects = new DistortedEffects();
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      if( mMeshRectangles ==null )
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        {
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        mMeshRectangles = new MeshRectangles(1,1);
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        mMeshRectangles.setStretch(lisaWidth,lisaHeight,0);
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        }
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      if( mMeshCubes==null)
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        {
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        mMeshCubes= new MeshCubes(GRID,GRID,1, mapFB, mapFB, mapLR, mapLR, mapTB, mapTB);
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        mMeshCubes.setStretch(gridWidth,gridHeight,gridDepth);
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        }
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      mRoot = new DistortedNode(mLisaTexture, mEffects, mMeshRectangles);
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      mRoot.attach(mGridTexture,gridEffects,mMeshCubes);
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      setDepthPriv();
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      mScreen.detachAll();
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      mScreen.attach(mRoot);
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      float factor = lisaWidth/(2.0f*gridWidth);
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      MatrixEffectScale scale = new MatrixEffectScale( new Static3D(factor,factor,factor) );
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      gridEffects.apply(scale);
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      Dynamic1D rotDyn = new Dynamic1D(12000,0.0f);
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      rotDyn.add(new Static1D(  0));
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      rotDyn.add(new Static1D(360));
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      rotDyn.setMode(Dynamic.MODE_JUMP);
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      MatrixEffectRotate rotate = new MatrixEffectRotate(rotDyn, new Static3D(1,0,0), new Static3D(0,0,0));
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      gridEffects.apply(rotate);
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      Dynamic1D sinkDyn = new Dynamic1D(3000,0.0f);
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      sinkDyn.add(new Static1D(1.0f));
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      sinkDyn.add(new Static1D(0.3f));
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      VertexEffectSink sink = new VertexEffectSink(sinkDyn, new Static3D(0,0,0) );
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      gridEffects.apply(sink);
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      VertexEffectSink.enable();
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      FragmentEffectChroma.enable();
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      try
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        {
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        DistortedLibrary.onCreate(mView.getContext());
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        }
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      catch(Exception ex)
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        {
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        android.util.Log.e("ObjectTree", ex.getMessage() );
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        }
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      }
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}