Connecting the PointCloudGenerator Node
                                                    To create a dense point cloud, PointCloudGenerator needs a Camera node with a solved camera path, either from CameraTracker or from a third party 3D application, and the tracked 2D footage.
                                                    To connect the node, do the following:
                                                    
                                                        
                                                        
                                                        
                                                        
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                                                            1.  
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                                                            Click 3D > Geometry > PointCloudGenerator. | 
                                                        
                                                    
                                                    
                                                        
                                                        
                                                        
                                                        
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                                                            2.  
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                                                            Connect the necessary nodes to the inputs:  | 
                                                        
                                                    
                                                    • Source - the 2D footage from which the camera track was solved.
                                                    • Camera - the solved Camera node.
                                                    
                                                        
                                                        
                                                        
                                                        
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                                                            3.  
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                                                            If you want to mask part of the scene to avoid tracking moving objects or reflections, connect a matte to the Mask input. For more information about masking, see Masking Out Regions of the Image. | 
                                                        
                                                    
                                                    
                                                        
                                                        
                                                        
                                                        
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                                                            4.  
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                                                            Click Image > Viewer to insert a Viewer node and connect it to the PointCloudGenerator node. |