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140 Layers and Masks<br />
Using filter layers<br />
If you apply a filter effect to a standard or background layer, the layer is<br />
permanently altered. However, if you want the flexibility of being able to edit your<br />
filter effects at any point in the future (and don't want to destroy the layer<br />
contents) you can create a Filter Layer instead. This non-destructive approach<br />
keeps layer content independent of your effects. Otherwise without filter layers,<br />
you would have to repeatedly undo your operations if you've had a rethink and no<br />
longer want to apply a specific layer's filter effect.<br />
When a Filter Layer is created, the Filter Gallery is launched which allows one or<br />
more of your chosen filter effects to be added. At any point in the future, you can<br />
control your effects from the Filter Gallery—add, modify, replace, or delete effects<br />
equally!<br />
To convert to a filter layer:<br />
1. In the Layers tab, right-click a standard or Background layer and choose<br />
Convert to Filter Layer....<br />
OR<br />
Select Convert to Filter Layer... on the Layers menu.<br />
2. From the displayed Filter Gallery, apply one or more filter effects by adding<br />
from the<br />
more details.<br />
button's flyout. See Using the Filter Gallery on p. 122 for<br />
3. Click OK to close the Filter Gallery. The layer now shows the letter “F”<br />
indicating that one or more filter effects are now applied, e.g.<br />
To edit the filter layer:<br />
• In the Layers tab, double-click the filter layer.<br />
• From the Filter Gallery, add, modify, or delete filter effects, then click OK. The<br />
changes are stored in the modified Filter Layer.
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