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Revision 7cf57d72

Added by Leszek Koltunski about 7 years ago

This version appears to be fully working on Nexus 5X (it transfers back all the vertices and, if there are no vertex effects, the vertices transferred back are identical to the ones passed).

This however crashes with GL_INVALID_OPERATION during glDrawArrays() when run on Nexus 4.

View differences:

src/main/java/org/distorted/library/MeshObject.java
86 86 
       GLES30.glBufferData(GLES30.GL_ARRAY_BUFFER, dataLength*    TEX_DATA_SIZE*BYTES_PER_FLOAT, mMeshTexture  , GLES30.GL_STATIC_READ);
87 87 
       }
88 88 

  		




  89
  
  
    
     if( mPosTBO[0]<0 )


  		




  
  89
  
    
     if( mPosTBO[0]<0 ) // Buffer for Transform Feedback. Since we are rendering with GL_TRIANGLE_STRIP, after passing N vertices


  		




  
  90
  
    
                        // we will get (N-2) triangles back, each 3 vertices of 12 bytes.


  		




  90
  91
  
    
       {


  		




  91
  92
  
    
       GLES30.glBindBuffer(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, mPosTBO[0]);


  		




  92
  
  
    
       GLES30.glBufferData(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, dataLength*POSITION_DATA_SIZE*BYTES_PER_FLOAT, null, GLES30.GL_STATIC_READ);


  		




  
  93
  
    
       GLES30.glBufferData(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 3*(dataLength-2)*POSITION_DATA_SIZE*BYTES_PER_FLOAT, null, GLES30.GL_STATIC_READ);


  		




  93
  94
  
    
       GLES30.glBindBuffer(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 0);


  		




  94
  95
  
    
       }


  		




  95
  96
  
    

  		












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