---
name: "SWF::Filter"
section: "3pm"
platform: "linux"
package: "libswf-perl"
version: "1:0.4.4-1.1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/SWF::Filter"
---

# SWF::Filter(3pm)

SWF filter class

## NAME

SWF::Filter - SWF filter class

## SYNOPSIS

```
        use SWF::Blur;
        use SWF::Shadow;
        use SWF::Constants qw(:Filter);
        @color= (12,45,99);
        $blur = new SWF::Blur(15, 15, 2);
        $shadow = new SWF::Shadow(2.5, 12, 2);
        $filter = SWF::Filter::newDropShadowFilter( \@color,
                  $blur, $shadow, SWF_FILTER_MODE_KO);
        $displayitem->addFilter( $filter);
```

## DESCRIPTION

Filter objects are available since player version 8. They can be applied to buttons, movieclips and text instances by the *addFilter()* method of SWF::DisplayItem objects. Several types of filters exist. Each of them has its own method of construction, see below.

## METHODS

- newDropShadowFilter($colorref, $blur, $shadow, $flags)

  Creates a DropShadowFilter object. The object is controlled by color, blur object, shadow object and flags (SWF\_FILTER\_MODE\_INNER, SWF\_FILTER\_MODE\_KO).

- newBlurFilter($blur)

  Creates a BlurFilter object. The object is controlled by the blur object.

- newGlowFilter($colorref, $blur, $strength, $flags)

  Creates a GlowFilter object, a simple variant of DropShadowFilter. Use SWF\_FILTER\_MODE\_INNER, SWF\_FILTER\_MODE\_KO as flag values.

- newBevelFilter($shadow\_colorref, $highlight\_colorref, $blur, $shadow, $flags)

  Just another (complex) variant of DropShadowFilter. Use SWF\_FILTER\_MODE\_INNER, SWF\_FILTER\_MODE\_KO or FILTER\_MODE\_ONTOP as flag values.

- newGradientGlowFilter($gradient, $blur, $shadow, $flags)

  Just another (more complex) variant of DropShadowFilter. As flag use SWF\_FILTER\_MODE\_INNER, SWF\_FILTER\_MODE\_KO or SWF\_FILTER\_MODE\_ONTOP .

- newGradientBevelFilter($gradient, $blur, $shadow, $flags)

  Just another (slightly more complex) variant of DropShadowFilter,  extending *newBevelFilter()* by using a gradient instead of simple colors. Use SWF\_FILTER\_MODE\_INNER, SWF\_FILTER\_MODE\_KO or FILTER\_MODE\_ONTOP  as flag values.

- newColorMatrixFilter($filtermatrix)

  The filtermatrix is an object of SWF::FilterMatrix class sized 5 columns x 4 rows  for RGBA values, useful for transformations like color conversion to greyscale pictures.

- newConvolutionFilter($filtermatrix, $divisor, $bias, $colorref, $flags)

  Another filter for nice picture effects like blur etc.  The filtermatrix is an object of SWF::FilterMatrix class.  As flag use either use SWF\_FILTER\_FLAG\_CLAMP or SWF\_FILTER\_FLAG\_PRESERVE\_ALPHA.

## AUTHOR

```
        developers of
        ming.sourceforge.net
```

## SEE ALSO

SWF, SWF::Filter, SWF::Blur, SWF::Shadow, SWG::Gradient, SWF::FilterMatrix, SWF::DisplayItem, SWF::Constants, SWF::MovieClip, SWF::Button