Variable Cross Blur filter allows you to control the effect power within the frame. You could have the effect appear only at some image side rather than over the entire image. Parameters: Blur Type "Constant" mode produces more noticeable effect while "Soft" adds a subtle cross blur. Blend Controls how the two perpendicular blurs are combined. Size Controls the blur power. Value of 1.0 sets the maximum blur, but you can enter in edit field values up to 4.0 and get more blur, but with a slightly reduced quality. Area Controls how large the soft area is. 0.0-none, 1.0-whole image. By keyframing the Area control, you can wash the blur effect across the screen. Direction Controls the blur direction. Value of 1.0 = one full rotation (360 degrees). You can enter values up to 100.0 and create direction animations (rotating direction). Side Controls the position of the effect area. 0.0-left, 0.25-top, 0.5-right, 0.75-bottom. You can enter values up to 100.0 and create side animations. Distribution Higher values soften the boundary of the effect mask. See also Cross Blur variations: Cross Blur - Cross-Blurs an image. Cross Blend - Blur an image and blend with the original. Variable size - control the blur power within the frame with a Radial Mask.