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

rendering with a clear background

Posted: Mon, 23rd Feb 2009, 12:39am

Post 1 of 6

sir alex

Force: 400 | Joined: 10th Jul 2008 | Posts: 173

EffectsLab Pro User

Gold Member

How do you render a file with a clear background while mantaining the background? The reasone i'm trying to do this is so that I can cut the background off of a picture and then add it to another project without it having any transperancy and no background.
Posted: Mon, 23rd Feb 2009, 1:02am

Post 2 of 6

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

Sorry, I'm confused. You want to keep (maintain) the background, but render without a background (clear)? These are opposites, so clearly I' m not understanding what exactly you are trying to do. Can you explain in greateer detail?
Posted: Mon, 23rd Feb 2009, 1:46am

Post 3 of 6

sir alex

Force: 400 | Joined: 10th Jul 2008 | Posts: 173

EffectsLab Pro User

Gold Member

I mean to mask out the background and render it so that just the objest is seen when I open it into anouther file. Like when clip art from footage: special effects is imported the object is solid but there is no background.
Posted: Mon, 23rd Feb 2009, 2:17am

Post 4 of 6

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

You won't be able to do this effectively in EffectsLab. If you wanted to render effects that way, created within EffectsLab, you would be ok, but to mask out the background from some footage, you would have to manually rotoscope a mask onto each frame around the object, and EffectsLab isn't the best program for that kind of work. It isn't even a good option for that kind of work.

It involves rendering with an alpha channel, into a format that will support alpha channels, such as the Quicktime Animation codec.
Posted: Mon, 23rd Feb 2009, 2:47am

Post 5 of 6

sir alex

Force: 400 | Joined: 10th Jul 2008 | Posts: 173

EffectsLab Pro User

Gold Member

Can any of the outher lab products do that. And if not can you recomened any other software that's good for that pirpuse.
Posted: Mon, 23rd Feb 2009, 3:59am

Post 6 of 6

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

Yeah, either CompositeLab or VisionLab is capable of that. The only efficient way to do that is using a greenscreen, or other colored background, to pull a key. Barring that method, you are going to end up spending huge amounts of time rotoscoping an animated mask that follows the edges of the foreground element you want to keep.

Other options would include After Effects, or converting the video to still images and processing each one in Photoshop.