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21 lines
671 B
21 lines
671 B
2 years ago
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# RectMask2D
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A **RectMask2D** is a masking control similar to the **Mask** control. The mask restricts the child elements to the rectangle of the parent element. Unlike the standard Mask control it has some limitations, but it also has a number of performance benefits.
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## Description
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A common use of a RectMask2D is to show small sections of a larger area. Using the RectMask2D to frame this area.
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The limitations of RectMask2D control are:
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- It only works in 2D space
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- It will not properly mask elements that are not coplanar
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The advantages of RectMask2D are:
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- It does not use the stencil buffer
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- No extra draw calls
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- No material changes
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- Fast performance
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