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Is it possible to make the composition background transparent

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Chris GuIs it possible to make the composition background transparent
by on Mar 27, 2006 at 11:19:05 pm

I can only change the background color but not to transparent. Any help?


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John DickinsonRe: Is it possible to make the composition background transparent
by on Mar 27, 2006 at 11:21:52 pm

Click on the little checkerbox button at the bottom of the comp to hide the background color.

JD

John Dickinson
Motionworks
http://www.motionworks.com.au


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Chris GuRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:09:46 am

While it hides the background color if I export the movie the background color still exists. You're talking about the "Toggle Transparency" button right? That one doesn't work.


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Andrew KramerRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:12:27 am

Viewing the tranparency and rendering transparency are 2 separate issues. To render with transfarency you need to use a codec thats supports alpha.

When rendering check to see if the channels are set to rgb plus alpha. Quicktime animation is a popular method. I tend to use PNG sequences for most things.

Good Luck


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John DickinsonRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:13:16 am

You have to choose an output format that supports alpha channels, Quicktime Animation is one, Targa sequence is another


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sergeRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:14:30 am

Chris,

When exporting your movie you have to choose a codec that supports an Alpha Channel. QT Animation set to Millions of collors plus does for instance.

Salut.
Serge


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sergeRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:15:48 am

OK OK! I think Chris got it! :-)


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Justin ProductionsRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:17:42 am

Okay, if I understand well your question...

Adobe After Effects shows transparency as a black color. So when you import a file, wheter it's a picture [(below the size of the main comp for example, so you see black (tranparency) around)] or a video footage that you keyed and you see some black under it, that's the transparency. Just do Composition > Make Movie > Output Module > Quicktime (any format...etc.) and be sure to render with RGB + Alpha.

Black = Alpha in a certain way.

If I didn't answered your question, just tell me (or us).

Hope that helped.

Justin Productions
Tangerin01@hotmail.com
Adobe After Effects 6.0 Professional


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Justin ProductionsRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 12:19:16 am

*Rofl!*

Now, I just hope he got his answer!

Justin Productions
Tangerin01@hotmail.com
Adobe After Effects 6.0 Professional


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Chris GuRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 1:04:06 am

I don't think what I asked made the most sense. Basically, I have a black background (for my composition) just like it would be set to for any new composition you make in AE. Then I just have a simple timer in white down at the bottom. All I want to do is have the timer in white and leave the background color black out of it (of course making it transparent)

So do I even need to bother toggling the transparency button?

Because everytime I go to render, and I've tried almost everyone's method listed above - It looks transparent then shifts to black as it's rendering (which means whatever settings I used didn't work)

So am I missing something? I'm re reading your posts as we speak but I don't know why this is so difficult for me lol.


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Chris GuRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 1:28:50 am

Oh and part of why I don't want to use like png or targa is because it makes so many individual files... and I need to put my video in reverse. I need to put it into reverse because the freaking timer preset I used in AE I couldn't set it to go in reverse. So I don't want to have a bunch of images I'd need to manually move around.

I'm using 6.5 by the way...

I go to composition ... make movie ... (Look at the render queue) and scroll down to output module. Click output module and then go to Quick Time Movie

The only channel options I have are RGB or ALPHA not both together...

Any help?


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Chris GuRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 1:32:45 am

Ok lol

I'm a noob. I just used video for windows made it RGB plus ALPHA and it worked.

Thanks for all the help.

Lol I can do lightsabers but I couldn't figure out how to change my composition background lol.


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yikesmikesRe: Is it possible to make the composition background transparent
by on Mar 28, 2006 at 1:44:38 am

Have you got the "+" ?

When you render, in the Render Queue, click on the blue
"codec" next to "Output Module" (Lossless is the default on my machine).

This opens the "Output Module Settings" dialogue box.

Now next to the Format Options button a quarter way down the page, there is:

Channels:
Depth:
Color:

To get Transparency (Alpha) you need to select:

Channels: RGB + Alpha
and the Depth changes to:
Depth: Millions of Colors+

Without the "+" there is no Alpha, no transparency, some codecs don't support Alpha, some do. That's why some folks suggested QuickTime Animation, (select - QuickTime Movie from that top dropdown... Format.
then click on "Format Options" opening the "Compression Settings" dialogue box, and select "Animation".

Some like PNG, targa, and others for transparency, but no +, no transparency.


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Brenda MabbittRe: Is it possible to make the composition background transparent
by on Mar 31, 2010 at 5:12:13 pm

Okay, I've followed these instructions to the letter for an animated logo I created for a friend of mine. She e-mailed me, explaining that at when she brought it into Premiere on her system, the background first came in white, then black. Advice, anyone?


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Greg NeumayerRe: Is it possible to make the composition background transparent
by on Mar 28, 2013 at 5:54:24 pm

I'm sure you're beyond this project, but for the record, also check to make sure the importing machine is set to interpret an alpha channel for the incoming footage.

Antifreeze Design
http://www.antifreezedesign.com


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