This is because the two shapes are masked separately.Ī better way to construct the same thing would be with a clipping mask. That’s a bad thing, giving the right edge a grey halo. The top red shape is antialiased at the edge of the light grey circle, so edge pixels are a combination of partially transparent red pixels and partially transparent grey pixels. If you wanted to colour a portion of the circle red, creating two separate shape layers and using boolean operations to mask the red area separately would be a poor choice. Using the same method isn’t particularly good for more complex elements that require more than one layer. That’s a great way to create simple shapes that are a single colour. The path operations and path arrangement drop down menus are in the options bar. You can reorder after drawing, using the path arrangement dropdown to the right of the path operations icon. The sequence you draw the shapes matters, because that’s the order the boolean path operations are applied. In the example below, the larger circle is set to combine shapes, and the smaller circle is set to subtract front shape. If you need portions of a shape layer to be see-through, multiple paths with different boolean path operations can be used. Here’s a rundown of what’s available, using only vector shapes. If you’re constructing icons or user interface elements with a decent amount of complexity, there’s a good chance you’re going to need some kind of masking.
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