Corel Painter Help | Applying the Glass Distortion dynamic plug-in

Applying the Glass Distortion dynamic plug-in

To create a Glass Distortion dynamic layer

The Glass Distortion dynamic plug-in creates a layer that simulates the appearance of viewing the image through textured glass. You can move the layer in the document to view the distortion over different parts of an image.

A section of an image with Glass Distortion applied

To create a Glass Distortion dynamic layer

1 Do one of the following:

• In the Layers panel, choose the Canvas.

• Choose a selection tool from the toolbox, and then drag in the document window to select an area.

2 In the Layers panel, click the Dynamic Plug-ins button

, and choose Glass Distortion.

3 In the Glass Distortion Options dialog box, choose one of the following displacement sources from the Using list box:

• Paper — uses the selected paper texture. Paper texture is good for creating the pebbled glass effect. Unless you want frosted glass, you’ll probably want to increase the scale of the paper.

• Current Selection — uses the currently selected area in the document window

• Image Luminance — uses the current document’s luminance

• Original Luminance — uses the clone source’s luminance

Image pixels are displaced, based on the light and dark areas of the source.

4 To modify the distortion effect, adjust any of the following sliders:

• Softness — controls the transitions between displaced colors. Increasing softness creates more intermediate steps and produces a smoother distortion. If you experience aliasing in a glass distortion, try increasing the softness.

• Amount — controls the degree of displacement. A higher amount leads to more distortion.

• Variance — creates multiple variations in the neighborhood of the displacement. The result of increasing variance depends on the type of image and other settings.

Corel Painter automatically creates a new layer when you apply the dynamic plug-in.

You can also
Inverts the selected source	Enable the Inverted check box.
Display changes before applying them to the image	Enable the Preview check box.
Restore the default settings	Click the Reset button.

You can also use the Opacity slider in the Layers panel to adjust the effect.

You can drag the Glass Distortion layer or selection in the document window to distort other areas of the image.

The Glass Distortion dynamic layer using Paper (left) and Image Luminance (right) displacement sources