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Revision 833685d0

Added by Leszek Koltunski almost 8 years ago

Progress with Vertex3D

View differences:

src/main/java/org/distorted/examples/cubes/CubesSurfaceView.java
32 32 

  		




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class CubesSurfaceView extends GLSurfaceView 


  		




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{


  		




  35
  
  
    
    int mX, mY;


  		




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    CubesRenderer mRenderer;


  		




  
  35
  
    
    private int mX, mY;


  		




  
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    private CubesRenderer mRenderer;


  		




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


  		




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  ......




  109
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                                       float rz = mRenderer.mQuat2.getZ();


  		




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                                       float rw = mRenderer.mQuat2.getW();


  		




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                                       // This is quaternion multiplication. (tx.ty.tz.tw)


  		




  
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                                       // is now equal to (qx,qy,qz,qw)*(rx,ry,rz,rw)


  		




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


  		




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


  		




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


  		




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


  		




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  118
  
    

  		




  
  119
  
    
                                       // The point of this is so that there are always


  		




  
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                                       // exactly 2 quaternions: Quat1 representing the rotation


  		




  
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                                       // accumulating only since the last screen touch, and Quat2


  		




  
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                                       // which remembers the combined effect of all previous


  		




  
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                                       // swipes.


  		




  
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                                       // We cannot be accumulating an ever-growing list of quaternions


  		




  
  125
  
    
                                       // and add a new one every time user swipes the screen - there


  		




  
  126
  
    
                                       // is a limited number of slots in the EffectQueueMatrix!


  		




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


  		




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


  		




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