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Directional Blur [DrBl]
	This tool is used to create directional and radial blurs. It is useful for creating simulated motion blur and light ray type effects. All channels (RGBA) are affected by Directional Blur.

Contents 1 Directional Blur [DrBl] 1.1 Controls Tab 1.2 Tips for Directional Blur (edit)

Controls Tab

This button array is used to select the Type of directional blur to be supplied to the image.

Linear

Linear distorts the image in a straight line, resembling the scenery that appears in the window of a speeding train.

Radial

Radial will create a distortion that originates at some arbitrary center, radiating outward the way that a view would appear if one were at the head of the train looking forward.

Centered

The Centered button produces a similar result to linear but the blur effect is equally distributed on both sides of the original.

Zoom

Zoom creates a distortion in the scale of the image smear to simulate the zoom streaking of a camera filming with a slow shutter speed.

This setting determines how the Edges of the frame are handled when a directional blur smears pixels from outside of the frame in toward the center.

Duplicate

Duplicate assumes that the pixels beyond the frame are the same as those that are the edge of the image.

Black

Black assumes that all of the pixels beyond the edge of the frame are black.

This coordinate control and crosshair affect the radial and zoom motion blur types only. It is used to calculate the position from where the blurring effect starts.

Length adjusts the strength and heading of the effect. Values lower than zero cause blurs to oppose the angle control. Values greater than slider maximum may be typed into the slider's edit box.

In both linear modes, this control will modify the direction of the directional blur. In the radial and zoom modes, the effect will be similar to that of the camera spinning while looking at the same spot. If the setting of the length slider is other then 0, the effect will create a whirlpool effect.

This will add a Glow to the directional blur, which can be used to duplicate the effect of increased camera exposure to light caused by longer shutter speeds.

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Tips for Directional Blur (edit)

EyeonTips:Manual/Tool Reference/Blur/Directional Blur