A radial mask is parametered by a 2D ellipse and enables to define a radial selection.
        
                            Note that similar and more evolved masks can be obtained by combining a 
                    Layer mask
                    Turn any 2D generator into a mask
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                     with a 
                     Radial Gradient
                    This generator creates a linear gradient (by default from black to white), in a circle from the center to the edges of the layer
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Radial Gradient
                    This generator creates a linear gradient (by default from black to white), in a circle from the center to the edges of the layer
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                    .
        
                            Related masks in 3D space are: 
                    Sphere
                    Mask with a sphere shape
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                     and 
                    Cylinder
                    Mask with a cylinder shape
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                    .
                    If you want to create a perfectly round radial mask, put Smode in pixel unit and there you go :
                    
