>>Filters can do virtually anything the author can think off.
>>Actions only consist of already existing functionallity.
>Filters also consist only of existing functionality. If it were
>otherwise, the program wouldn't be able to carry out the filter
Unlike an action, a filter is a computer program. As such, the filter can
perform operations which Photoshop cannot. Examples of such operations
performed by filters include the fractal geometry functions in some of the
Kai's Power Tools filters; Photoshop has no fractal generation capability by
An action can perform only operations which Photoshop can already do--execute
Photoshop commands, etc. If you can't do it with Photoshop commands, you can't
do it with an action.
A filter can do anything--even things which cannot be done by any Photoshop
commands. Many current Photoshop filters are more sophisticated and complex
than the original version of Photoshop. A filter can perform mathematical and
other operations which no Photoshop commands perform; an action cannot.
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