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Revision 35fd8f64

Added by Leszek Koltunski over 1 year ago

Implement the android.opengl.Matrix functions ourselves.

View differences:

src/main/java/org/distorted/examples/aroundtheworld/AroundTheWorldRendererPicker.java
30 30 
import android.opengl.GLSurfaceView;
31 31 
import android.opengl.Matrix;
32 32 

  		




  
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import org.distorted.library.helpers.MatrixHelper;


  		




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


  		




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class AroundTheWorldRendererPicker implements GLSurfaceView.Renderer


  		




  ......




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	private static final int COLOR_OFFSET       = 3;


  		




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	private static final int COLOR_DATA_SIZE    = 4;


  		




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  private float[] mModelMatrix      = new float[16];


  		




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	private float[] mViewMatrix       = new float[16];


  		




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	private float[] mProjectionMatrix = new float[16];


  		




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	private float[] mMVPTriangleMatrix= new float[16];


  		




  48
  
  
    
  private float[] mMVPSquareMatrix  = new float[16];


  		




  
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  private final float[] mModelMatrix      = new float[16];


  		




  
  47
  
    
	private final float[] mViewMatrix       = new float[16];


  		




  
  48
  
    
	private final float[] mProjectionMatrix = new float[16];


  		




  
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	private final float[] mMVPTriangleMatrix= new float[16];


  		




  
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  private final float[] mMVPSquareMatrix  = new float[16];


  		




  
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  private final float[] mTmpMatrix        = new float[16];


  		




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	private final FloatBuffer mTriangleVert, mSquareVert;


  		




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  ......




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	AroundTheWorldRendererPicker()


  		




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	  {


  		




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	  Matrix.setIdentityM(mModelMatrix, 0);


  		




  
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	  MatrixHelper.setIdentity(mModelMatrix);


  		




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		final float[] triangleVertData = {


  		




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				      -0.865f, 1.5f, 0.0f,    1.0f, 1.0f, 1.0f, 1.0f,   // x,y,z,  r,g,b,a


  		




  ......




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		final float near   = 1.0f;


  		




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		final float far    = 2.0f;


  		




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		Matrix.frustumM(mProjectionMatrix, 0, left, right, bottom, top, near, far);


  		




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		Matrix.multiplyMM(mMVPTriangleMatrix, 0, mProjectionMatrix, 0, mViewMatrix, 0);


  		




  
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		MatrixHelper.frustum(mProjectionMatrix, left, right, bottom, top, near, far);


  		




  
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		MatrixHelper.multiply(mMVPTriangleMatrix, mProjectionMatrix, mViewMatrix);


  		




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	  }


  		




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


  		




  ......




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    GLES31.glVertexAttribPointer(mColorH, COLOR_DATA_SIZE, GLES31.GL_FLOAT, false, STRIDE_BYTES, mSquareVert);


  		




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    GLES31.glEnableVertexAttribArray(mColorH);


  		




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    Matrix.multiplyMM(mMVPSquareMatrix, 0, mViewMatrix, 0, mModelMatrix, 0);


  		




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    Matrix.multiplyMM(mMVPSquareMatrix, 0, mProjectionMatrix, 0, mMVPSquareMatrix, 0);


  		




  
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    MatrixHelper.multiply(mTmpMatrix, mViewMatrix, mModelMatrix);


  		




  
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    MatrixHelper.multiply(mMVPSquareMatrix,  mProjectionMatrix, mTmpMatrix );


  		




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    GLES31.glUniformMatrix4fv(mMVPMatrixH, 1, false, mMVPSquareMatrix, 0);


  		




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		GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0,4);


  		












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