how to dispaly model at specific vievpoint

Hi
I have a problem that can't solve:

how to display model form vrml file in opengl at defined
vievpoint( position and orienation like here:

http://www.graphcomp.com/info/specs/sgi/vrml/spec/part1/nodesRef.html#Viewpoint
)

i am doing this:


gl.glMatrixMode(GL.GL_MODELVIEW);
 gl.glLoadIdentity();
  glu.gluLookAt( vp.position.x, vp.position.y, vp.position.z,
       0,0,0,
      vp.orientation.x,vp.orientation.y,vp.orientation.z);
the results are quite similat 0 but it is not that( i am nou using
angle!!)

vp - viewpoint node

I also tried:

gl.glMatrixMode(GL.GL_MODELVIEW);
 gl.glLoadIdentity();
 gl.glTranslatef(vp.position.x, vp.position.y, vp.position.z);
 float angle=vp.orientation.w*180/(float)Math.PI;
 gl.glRotatef(angle,vp.orientation.x,vp.orientation.y,vp.orientation.z);

but also didn't work


i'd be very grateful at any help

-- 

wito