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

Transparent Video

Posted: Sat, 27th Dec 2008, 9:11pm

Post 1 of 17

diginetmedia

Force: 400 | Joined: 18th Dec 2008 | Posts: 3

CompositeLab Pro User

Gold Member

How can i create an Transparent Video?
Posted: Sat, 27th Dec 2008, 9:40pm

Post 2 of 17

spydurhank

Force: 1956 | Joined: 24th Jun 2008 | Posts: 1357

VisionLab User VideoWrap User FXpreset Maker Windows User FXhome Movie Maker

Gold Member

use screen or add for the composite or use a transparency grade filter, this filter allows yo to control how transparent your clip is.
Posted: Tue, 30th Dec 2008, 11:14am

Post 3 of 17

diginetmedia

Force: 400 | Joined: 18th Dec 2008 | Posts: 3

CompositeLab Pro User

Gold Member

Do i neet a transparent layer? How can i greate this and how can i save video with transparent background?
Posted: Tue, 30th Dec 2008, 4:04pm

Post 4 of 17

spydurhank

Force: 1956 | Joined: 24th Jun 2008 | Posts: 1357

VisionLab User VideoWrap User FXpreset Maker Windows User FXhome Movie Maker

Gold Member

you can add a transparency grade to "any" clip that you have on the time line. to save it just render it. you can change the "composite" settings from "normal" to "screen" or "add" they also make a video transparent.
Posted: Wed, 31st Dec 2008, 1:12pm

Post 5 of 17

diginetmedia

Force: 400 | Joined: 18th Dec 2008 | Posts: 3

CompositeLab Pro User

Gold Member

How can I add a transparency grade? Must I take a Effect? Sorry for this simple Questions. Can you send me an Example?
Posted: Wed, 31st Dec 2008, 3:35pm

Post 6 of 17

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

As with any grade filter, you can double-click on it or drag it to the canvas to apply the filter to the currently selected clip.
Posted: Wed, 31st Dec 2008, 8:21pm

Post 7 of 17

FXhomer73638

Force: 400 | Joined: 22nd Dec 2008 | Posts: 2

CompositeLab Pro User

Gold Member

Aaargh, I'm trying to understand this, too, and so far it's not helping.

I have the green screen keyed out. My background looks black right now. Can someone tell me step by step (slowly, because I'm brand-new at this!) how to make my background transparent?

Adding a transparency grade at this point just makes the whole thing transparent, not the background.

Help, please.

Thanks,
Andrea
Posted: Wed, 31st Dec 2008, 9:03pm

Post 8 of 17

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

Aha, what you areafter is alpha rendering, not transparency. A bit of confusion due to terminology is all.

Once you have your key all good to go, set the render options to Quicktime .mov.
Make sure that the "Retain Alpha" box is checked.
Render.
When the Quicktime options window pops up, select the Animation codec, and make sure that the color depth is set to "Millions+".

That should do it. Most codecs don't suport alpha channels. The Quicktime Animation codec does, and I believe uncompressed does in either .mov or .avi. I'm not sure any of the other available codecs do, but there might be aothers.
Posted: Thu, 1st Jan 2009, 4:22am

Post 9 of 17

FXhomer73638

Force: 400 | Joined: 22nd Dec 2008 | Posts: 2

CompositeLab Pro User

Gold Member

Thanks so much for the reply ... unfortunately, I still just get a black background. I've tried rendering in a bunch of different formats, including the uncompressed option in .avi.

Do I need to add a background layer, maybe? And make that transparent?

Any additional help would be really appreciated.

Thanks,
Andrea
Posted: Thu, 15th Jan 2009, 8:23pm

Post 10 of 17

AAV

Force: 800 | Joined: 9th Jan 2009 | Posts: 4

CompositeLab Pro User EffectsLab Pro User

Gold Member

Did you ever get your transparent backgroud? I am new at this program as well, and am trying to get the background transparent to use as a person walking onto a website with dialog.

TIA!
Posted: Thu, 15th Jan 2009, 10:09pm

Post 11 of 17

spydurhank

Force: 1956 | Joined: 24th Jun 2008 | Posts: 1357

VisionLab User VideoWrap User FXpreset Maker Windows User FXhome Movie Maker

Gold Member

As axeman stated above...
once you key out your greenscreen all good and proper,
click on "render" you should then see the program ask you for a name of the video which you're rendering.
Name it then you'll see a dialoge box that reads "Compression settings".
click the down pointing arrow on compression type. you'll see several options. click on animation which should be the 1st. one on the list.
After that look a bit lower and you'll see "Depth" click on the down pointing arrow and you'll see several options. click on the one that reads "millions+" then click okay and render. hope that helps. biggrin
Posted: Thu, 26th Mar 2009, 1:50am

Post 12 of 17

FXhomer53510

Force: 400 | Joined: 25th Mar 2009 | Posts: 3

CompositeLab Pro User

Gold Member

After the rendering process, I opened up the quicktime file that had been saved. Unfortunity alot of the green background had reappeared and the black background had not turned transparent. Any suggestions?
Posted: Thu, 26th Mar 2009, 1:55am

Post 13 of 17

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

What you are seeing is the RGB channels of the clip, without the alpha channel applied. When you put the clip in a program that reads the alpha channel for compositing (or adjust the QT settings so the alpha is used when displaying the clip), then it will look as it did in CompositeLab.
Posted: Thu, 26th Mar 2009, 3:52am

Post 14 of 17

FXhomer53510

Force: 400 | Joined: 25th Mar 2009 | Posts: 3

CompositeLab Pro User

Gold Member

Thanks for the reply. I'm wanting to import the quicktime video into a website with a transparent background. Any advice?
Posted: Thu, 26th Mar 2009, 4:45am

Post 15 of 17

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 are probably going to want to convert it to a GIF or some other web-friendly format. I'm not sure what app would be best for that.

Do you have Quicktime Pro?
Posted: Thu, 26th Mar 2009, 9:31am

Post 16 of 17

FXhomer53510

Force: 400 | Joined: 25th Mar 2009 | Posts: 3

CompositeLab Pro User

Gold Member

Thanks for the reply. My current issue is that after my video has been successfully keyed and rendered, the black background will not go transparent once re-opened as a quickview video. When using composite lab, I can successfully add a backdrop image showing that the greenscreen is working. To answer your query. I am not using quicktime pro. Is this where my problems lies? Thanks again for your responses
Posted: Thu, 26th Mar 2009, 2:18pm

Post 17 of 17

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

I asked about Quicktime Pro because that's what I use, and I'm not sure if the controls I'm about to explain are available in the free player. But here's how to make the alpha channel active in QT Pro:

In the Window menu, select "Show Movie Properties".
Select the Video Track
Now, at the lower left, there is a Transparency control, with a drop-down menu. Select one of the options other than "None". I don't recall exactly which one works best, but you can go through the list pretty quickly to see which one works best for your situation.

Alternately, if you are using a decent video editor, you can no doubt import the clip into it and tell it to recognize the alpha channel.