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 to which the particles are aligned.  Do any of the following to define the camera of the camera to use: 
                         
                            
                              Create a Get Data node for the Camera object, then plug this node's Out Name output into this port. 
                               
                              Click the Pick button and pick a camera in the scene. 
                               
                              Click the Explorer button and select a camera name from the list. 
                               
                              Enter a camera'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: 
                         
                            
                               : 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 when it is born, but does not change its orientation over its lifetime. 
                               
                               : 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 is. 
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