[Paraview] Berk, help me plz

[Panfeng Wang]

Berk,
	Given an environment as such:
	a 4-nodes cluster server without graphics card  and a client node with a graphics card,
	paraview-2.0.1 runs in the client/server mode.
	
	My questions are :
	1. what does the renderserver  send to the client?  pixel images for display? Or OpenGL control flows, then the client composites  and translates them to pixel images and displays? 
	2. paraview uses sort-last compositing algorithm, and where does the compositing process occur? on the renderservers or the client?  
	3. If my environment changes and every server node has a graphics card, then what is the answer of question 1 and 2 ?
	
		
 Thanks
	

	Wang