This filter applies time-varying Linear (Motion) Blur filter to the source. Time-varying One-Way blurs allow you to add not only motion blur, but a visual motion also, thus to make realistic camera-shake effects. Click here to see variation controls in detail. Dynamic blur power Shake effect Parameters: Blur Type "Constant" mode represents the real motion blur effect while "Soft" adds subtle directional blur. One-Way variations add not only motion blur, but a visual motion also. Size Controls the blur power. Value of 1.0 sets the maximum blur, but you can enter in edit field values from -4.0 to 4.0 and get more blur, but with a slightly reduced quality. Negative values set opposite-direction blur for One-Way modes. Variation Controls blur power variations. Variation slider allows you to set blur power variations to 0.0 and vary only blur direction. 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). Variation Controls blur direction variations. Variation slider allows you to set blur direction variations to 0.0 and vary only blur power. See also Dynamic Linear Blur variations: Linear Blend - Blur an image and blend with the original. Variable size - control the blur power within the frame with a Radial Mask, or Linear Mask.