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Blur Filters

Blur Filters

Blur filters are named much like they work or affect your video. They blur or defocus your video in various ways. Used to extremes, they can create an interesting image of colors and shapes. You might also want to use them in conjunction with other filters, such as a 4- or 8-Point Matte Filter, to hide a person's identity, for example. In this case, you'd put identical clips on top of each other, apply the blur to the lower clip, and use the Garbage Matte to reveal only the area you want to blur on the upper clip.

Gaussian Blur blurs the whole frame of a clip's video. You can blur one or all of the color and alpha channels together or separately, creating a different look to the blur. The pop-up menu it contains allows you to choose which channel to blur. The Radius slider allows you to select the amount of blurring you add to the clip. The more you move the slider to the right, the more radical the blur. Setting a keyframe at 0 and then setting one later in your clip at a higher level creates the illusion of a rack focus, for example. A rack focus is where you shoot two people or objects, and one is behind the other, in the distance. You can change focus during the shot to bring one or the other into focus. This one is probably the most used of the group of Blur filters. It's also often used as a way to blur a face using a Garbage Matte technique, much like you did with the clip of Cap looking at the stars. However, you use the same video on both layers and add the Blur and the Matte to one of them. Used at an extreme setting, a Gaussian Blur filter makes interesting backgrounds, because they become very abstract. Used with slowed-down footage, they can be very effective for title backgrounds or fills.


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