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  Problem with FloatBuffer Array  (Read 944 times)
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Offline PinHead

Junior Newbie





« Posted 2011-11-17 20:07:00 »

Hi,
  I'm having a problem with loading the x,y,z vertices the problem is, is that I get the vertices loaded which resemble a Cube but I keep getting a vertice in the middle of the cube that shouldnt be their ?

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private float[]pointsf = {  1.000000f, -1.000000f, -1.000000f,
                    1.000000f, -1.000000f, 1.000000f,
                  -1.000000f, -1.000000f, 1.000000f,
                                 -1.000000f, -1.000000f, -1.000000f,
                                   1.000000f, 1.000000f,  -0.999999f,
                                   0.999999f, 1.000000f,  1.000001f,
                                 -1.000000f, 1.000000f,  1.000000f,
                                 -1.000000f, 1.000000f, -1.000000f };

private FloatBuffer rectVertices;

@Override
   public void display(GLAutoDrawable gld )
   {
      // TODO Auto-generated method stub
      GL2 gl = gld.getGL().getGL2();
     
      gl.glClear( GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT );
     
      gl.glMatrixMode( GL2.GL_MODELVIEW );
     
      gl.glLoadIdentity();
     
      gl.glTranslatef( 0.0f, 0.0f, -5.0f );
     
      gl.glRotatef( 0, 1.0f, 0.0f, 0.0f );
      gl.glRotatef( 0, 0.0f, 1.0f, 0.0f );
     
      rectVertices = GLBuffers.newDirectFloatBuffer( pointsf.length );      
      rectVertices.put( pointsf );
      rectVertices.rewind();        
     
      gl.glVertexPointer( 3, GL2.GL_FLOAT, 0, rectVertices );
      gl.glEnableClientState( GL2.GL_VERTEX_ARRAY );
      gl.glNormal3f( 0,0,1 );
      gl.glDrawArrays( GL2.GL_POINTS, 0, pointsf.length );  // Generate the polygon using 4 vertices.
      gl.glDisableClientState( GL2.GL_VERTEX_ARRAY );
     
   }

public void init(GLAutoDrawable gld )
   {
      // TODO Auto-generated method stub
      GL2 gl = gld.getGL().getGL2();
      glu = new GLU();
      gl.glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
     
      gl.glEnable( GL2.GL_DEPTH_TEST );
     
      gl.glMatrixMode( GL2.GL_PROJECTION );
     
      gl.glLoadIdentity();
     
      glu.gluPerspective( 45.0, 500.0 / 500.0, 1.0, 500.0 );
     
      gl.glPointSize( 5.0f );  
     
   }

I would of tried to show this in a image but cant figure out how to load the image?

[ img ]
src = "C:\\Documents and Settings\Administrator\My Documents\My Pictures\pointArray.bmp"/>
[/img]
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