On 1/22/2012 11:34 AM, Shaheed Khan wrote:
> Actually i want to alwayz focus (zoom) on the building near runway while 
> flying so which Osg camera functions can i use to do so and wat parameters 
> should i pass ..

  Well, if you do getProjectionMatrixAsPerspective:
http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00073.html#0d5e678648b19df3b64dec0d06fef974

  and then alter the fovy and resubmit it with setProjectionMatrixAsPerspective:
http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00073.html#fe4fab17f1cc5b4664c17ed79717aabb


  This will keep all the same view, except alter the change the zoom (field of 
view).

-- 
Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com 
http://www.alphapixel.com/
  Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. 
Contracting.
    "There is no Truth. There is only Perception. To Perceive is to Exist." - 
Xen
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