depth of field leaves darker edge
by Jay Lee
on
May 6, 2008 at 2:53:20 pm
Hi,
I'm getting a dark blur around the edges of my composition when I turn my Depth of Field "on." I have my Blur level at 50% and my Aperture at 100 pixels- if I bring either of them down to 0, the dark edge disappears. But I wanted to keep them because it helps with some gradient banding I'm getting in the foreground of my comp.
Any other way to get rid of the dark blur around the comp edge?
Re: depth of field leaves darker edge by Dave LaRonde on May 6, 2008 at 3:24:40 pm
[Jay Lee]"I have my Blur level at 50% and my Aperture at 100 pixels- if I bring either of them down to 0, the dark edge disappears. But I wanted to keep them because it helps with some gradient banding I'm getting in the foreground of my comp. "
What happens if you use one of AE's blur effects on the foreground layers instead?
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: depth of field leaves darker edge by Grant Swanson on May 6, 2008 at 11:13:58 pm
Hi Jay,
This happens because there is obviously no "Repeat Edge Pixels" button. The Lens Blur effect works off of a luminance map, or as it's called in the effect, a "Depth Map Layer." So for the most ease and control, I would create a black/white/gray layer to show where you want to be blurred. And set that layer as the source of the blur.
The next best option, and is much simpler, is to just use the Box Blur effect, which much more closely resembles in-camera depth of field, when the iterations is set at 1 or 2 than does the fast blur effect.
