Distorted Android

  /// NORMAL PROGRAM /////

  private static DistortedProgram mNormalProgram;

  private static int mNormalMVPMatrixH;

  /// MAIN OIT PROGRAM ///

  private static DistortedProgram mMainOITProgram;

  private static int mMainOITTextureH;

  private static int mMainOITSizeH;

  private static int mMainOITNumRecordsH;

    // MAIN OIT PROGRAM ////////////////////////////////

    final InputStream mainVertStream = resources.openRawResource(R.raw.main_vertex_shader);

    final InputStream mainFragStream = resources.openRawResource(R.raw.main_fragment_shader);

    int numF = FragmentEffect.getNumEnabled();

    int numV = VertexEffect.getNumEnabled();

    String mainVertHeader= Distorted.GLSL_VERSION +

                           ("#define NUM_VERTEX "   + ( numV>0 ? getMax(EffectType.VERTEX  ) : 0 ) + "\n") +

                           ("#define OIT\n");

    String mainFragHeader= Distorted.GLSL_VERSION +

                           ("#define NUM_FRAGMENT " + ( numF>0 ? getMax(EffectType.FRAGMENT) : 0 ) + "\n") +

                           ("#define OIT\n");

    String enabledEffectV= VertexEffect.getGLSL();

    String enabledEffectF= FragmentEffect.getGLSL();

    try

      {

      mMainOITProgram = new DistortedProgram(mainVertStream, mainFragStream, mainVertHeader, mainFragHeader,

          enabledEffectV, enabledEffectF, Distorted.GLSL, null);

      }

    catch(Exception e)

      {

      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile MAIN OIT program: "+e.getMessage());

      throw new RuntimeException(e.getMessage());

      }

    int mainOITProgramH = mMainOITProgram.getProgramHandle();

    EffectQueueFragment.getUniformsOIT(mainOITProgramH);

    EffectQueueVertex.getUniformsOIT(mainOITProgramH);

    EffectQueueMatrix.getUniformsOIT(mainOITProgramH);

    mMainOITTextureH    = GLES31.glGetUniformLocation( mainOITProgramH, "u_Texture");

    mMainOITSizeH       = GLES31.glGetUniformLocation( mainOITProgramH, "u_Size");

    mMainOITNumRecordsH = GLES31.glGetUniformLocation( mainOITProgramH, "u_numRecords");

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

  void drawPrivOIT(float halfW, float halfH, MeshObject mesh, DistortedOutputSurface surface, long currTime, float marginInPixels)

    {

    float halfZ = halfW*mesh.zFactor;

    mM.compute(currTime);

    mV.compute(currTime,halfW,halfH,halfZ);

    mF.compute(currTime,halfW,halfH);

    mP.compute(currTime);

    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );

    mMainOITProgram.useProgram();

    GLES31.glUniform1i(mMainOITTextureH, 0);

    GLES31.glUniform2ui(mMainOITSizeH, surface.mWidth, surface.mHeight);

    GLES31.glUniform1ui(mMainOITNumRecordsH, (mBufferSize-surface.mWidth*surface.mHeight)/3 );  // see the fragment shader

    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mesh.mAttVBO[0]);

    GLES31.glVertexAttribPointer(mMainOITProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET0);

    GLES31.glVertexAttribPointer(mMainOITProgram.mAttribute[1], MeshObject.NOR_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET1);

    GLES31.glVertexAttribPointer(mMainOITProgram.mAttribute[2], MeshObject.TEX_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET2);

    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);

    mM.sendOIT(surface,halfW,halfH,halfZ,marginInPixels);

    mV.sendOIT();

    mF.sendOIT();

    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, mesh.numVertices);

    if( mesh.mShowNormals ) displayNormals(mesh);

    }