This compound aligns particles to have their Y axis point to the global position of a camera, allowing you to do "billboard"
               effects.
            
            Plug this compound's Execute output into a port on the ICETree node.
            
            For more information, see Aligning Particles to a Camera or a Position (Billboarding) [ICE Particle Simulations].
            
            See also the Billboard Orientation compound for true billboard effects.
            
             Tasks: Particles/Orientation
            
             Output Ports: Execute
            
            
               
                  
                     
                     
                  
                  
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                       The name of the camera root to which the particles are aligned.  Do any of the following to define the camera root of the camera to use:  
                        
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Create a Get Data node for the Camera Root object, then plug this node's Out Name output into this port.
                                
                            
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Click the Pick button and pick a camera root in the scene.
                                
                            
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Click the Explorer button and select a camera root name from the list.
                                
                            
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Enter a camera root's name in the text box.
                                
                            
                          
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                       The method by which the particle's Y axis is aligned to point at the camera root:  
                        
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 : The particle's alignment to the camera is set at its birth and remains the same over its lifetime; that is, the particle's
                                 Y axis points at the camera root when it is born, but does not change its orientation over its lifetime.
                                
                            
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 : The particle's alignment to the camera changes over its lifetime so that its Y axis is always pointing toward the camera,
                                 no matter where the camera root is.
                                
                            
                          
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