The light position of the point light source. The property is a D2D1_VECTOR_3F defined as (x, y, z). The units are in device-independent pixels (DIPs) and the values are unitless and unbounded.
            
            
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            '宣言
 
Public Property LightPosition As Vector3
             
        
            
            public Vector3 LightPosition {get; set;}
             
        
             
        
            
            
             
            
            
            
            
            
            
            
            
            
            
            
            参照