Instead of starting with a basic primitive shape, you can also start your polygon mesh by drawing it using vertices. This is useful if you have a specific 2D shape that you want to trace.
	 
 To create a new polygon
- Select 
		  . 
		
- Click to place the first vertex. 
		  Maya places vertices on the ground plane unless you snap them to existing geometry. 
		   
- Click to place the next vertex. Maya creates an edge between the first point and the last point you placed. 
		  
 
		
- Place another vertex. A dashed edge connects the three vertices. 
		  Important: The way you place vertices determines the direction of the face normal. If you place vertices in a clockwise direction, the face normal points downward. If you place vertices in a counter-clockwise direction, the face normal points upward. 
		   
- Do any of the following: 
		  - Press Enter to finish the polygon. 
			 
- Press Delete to delete the last point you placed. 
			 
- Press y to start a new polygon. 
			 
- Continue placing vertices to create a quad or n-sided polygon. 
			 
- To switch to editing vertices, press Home or Insert. A manipulator appears on the previous vertex. Use the manipulator to move the vertex, press Delete to delete a segment, or click another vertex to edit it. Press Home or Insert again to finish.