| 2.2. Adding or subtracting selections | ||
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2. Creating and Using Selections |  |
| 2.2. Adding or subtracting selections | ||
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2. Creating and Using Selections | |
Tools have options that you can configure. Each selection tool allows you to set the selection mode. The following selection modes are supported:
Replace is the most used selection mode. In replace mode, a selection replaces any existing selection.
Add mode, causes new selections to be added to any existing selection. Press and hold the Shift key while making a selection to temporarily enter add mode.
Subtract mode, causes new selections to be removed from any existing selection. Press and hold the Ctrl key while making a selection to temporarily enter subtract mode.
Intersect mode, causes areas in both the new and existing selection to become the new selection. Press and hold both the Shift and Ctrl key while making a selection to temporarily enter intersect mode.
The figure shows an existing rectangular selection. Select the Lasso. While pressing the Shift key, make a free hand selection that includes the existing selection. Release the mouse button and areas are included in the selection.
![[注意]](images/note.png)
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注意 |
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To correct selection defects precisely, use the Quick Mask. |
