When you add an 
		Anim Wire or 
		Clumping modifier, XGen uses a collection of points on the mesh to determine where to generate the animation wires and clumping guides. Maya saves these point locations as a map and stores the information as a point (.xuv) file. 
	 
By default, the file is saved to Description's 
		Points folder. The point file name is based on the polygon object bound to the Description. See 
		Manage XGen files and directories and 
		Ptex map file locations in XGen. 
	 
Point maps are also used to generate primitives at specific locations of the mesh surface (see 
		Specify locations for primitives). 
	 
Note:  To use the same point map with other Descriptions, the Descriptions must be bound to geometry with the same topology. 
		
- In the 
			 Generate Maps (for 
			 AnimWire) or 
			 Generate Clumping Map (for 
			 Clumping) window, do one of the following: 
			 - To use a point map you already created for the Description, click 
				  Load. 
				
- To create a new point map, set the 
				  Density and click 
				  Generate. 
				
- To create new point locations, click these areas on the polygon surface. 
				
- (For guides-based Descriptions only) To use the place points at the Description guide locations, click 
				  Guide. 
				
 
- (Optional) Make the point markers larger or smaller using 
			 Points Display Length. 
		  
- To apply a 
			 Mask 
			 to the point map, click 
			  and select an option from the list. and select an option from the list.See 
				Create a Ptex map to control primitives. 
			  
- Click 
			 Save.