You are viewing an archive of the old fxhome.com forums. The community has since moved to hitfilm.com.

Blur stays within alpha channel [ANSWER]

Posted: Mon, 10th Mar 2008, 11:45pm

Post 1 of 5

Darth Stazz the Powerful

Force: 2040 | Joined: 3rd Dec 2005 | Posts: 201

VisionLab User VideoWrap User FXpreset Maker Windows User MacOS User FXhome Movie Maker

Gold Member

i have this picture



i set a matte to it so that i only had the baseball without the white. however, when i put an angle blur on the picture, the blur only went as far as the alpha channel. how do i make it so it's not bound by the borders of the picture?
Posted: Tue, 11th Mar 2008, 2:26am

Post 2 of 5

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User

SuperUser

There is an alpha blur in the keying tools. That might help.
Posted: Tue, 11th Mar 2008, 9:29am

Post 3 of 5

Cogz

Force: 16050 | Joined: 18th Jun 2002 | Posts: 674

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User FXpreset Maker Windows User MacOS User

FXhome Team Member

If you use a garbage matte instead of a mask, then use the angle blur, making sure you are using the RGBA setting, the blur will also blur the alpha channel for the affect you are after.
Posted: Tue, 11th Mar 2008, 11:31am

Post 4 of 5

Darth Stazz the Powerful

Force: 2040 | Joined: 3rd Dec 2005 | Posts: 201

VisionLab User VideoWrap User FXpreset Maker Windows User MacOS User FXhome Movie Maker

Gold Member

i've already tried that.
here's another picture of it




the blur doesn't go beyond the square around the baseball. the rest of the blur gets cut off right at the edge.
Posted: Tue, 11th Mar 2008, 11:42am

Post 5 of 5

Cogz

Force: 16050 | Joined: 18th Jun 2002 | Posts: 674

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User FXpreset Maker Windows User MacOS User

FXhome Team Member

Right, managed to do it in VisionLab

1. Open your baseball image in a photo editor (i used Gimp which is free), remove the white and increase the size of the image to something like 600x600 making sure that the baseball goes in the centre. Save out as png like this...

http://tim.fxhome.com/baseball.png

(you may want to do it again, i didn't exactly take much care of removing the white)

2. Import baseball.png into VisionLab, add the angle blur, bingo!