EXPORT WITH ALPHA CHANNEL

I need to know how to export a clip with the alpha channel intact. I keyed a green screen shot and exported it, but everytime i open it in final cut it has a black background. Need help asap it is the last shot I have to do for a music video that has to be done by monday, thanks.

Are you sure your alpha is there? (check by pressing "a" with the mouse over the view window).
Did you try telling FCP that there is an alpha channel? If you did "Send to Shake", Final Cut Pro doesn't expect that the QuickTime it's getting back will contain an alpha channel (It's meant to match your sequence settings). You might try dragging the output directly into the browser to re-import it and see if it recognizes the alpha...
As a matter of fact, maybe you can check in QT Player, load it into QuickTime Player, cmd-j, click on the video track and play with the transparency setting. Try Straight Alpha - that should lead to the background going white - then you'll know its coming out of Shake properly and concentrate on getting FCP to recognize it...
If all else fails (I did just try it here and it worked), maybe try a TIFF or TGA sequence?
post back,
Patrick

Similar Messages

  • DNxHD (.mxf) export with alpha channel

    Hello!
    I'm working with one Finnish children's feature film which will star end of this year as an DIT. Movie will include lot's of green screen and the production want's me to do chroma keyed DNxHD 36 renders with alpha channel for AVID editorial. So far I have found out that neither davinci desolve nor assimilate scratch can't do it.  Is it possible to render DNxHD with alpha channel from AE? And can Avid import these files with alpha channel? All help is needed and appreciated.
    Cheers
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    Are you sure your alpha is there? (check by pressing "a" with the mouse over the view window).
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    As a matter of fact, maybe you can check in QT Player, load it into QuickTime Player, cmd-j, click on the video track and play with the transparency setting. Try Straight Alpha - that should lead to the background going white - then you'll know its coming out of Shake properly and concentrate on getting FCP to recognize it...
    If all else fails (I did just try it here and it worked), maybe try a TIFF or TGA sequence?
    post back,
    Patrick

  • Can't export with alpha channel - Again!!!,

    So, I have an intro that is designed as an overlay of the incoming video. The objects move out the way to reveal the video underneath. BUT, when I export the sequence the resulting movie has black in the background.
    Now, I had this issue several months ago, and after tons of research and trial and error, all of a sudden it worked when I came back to Motion on another project. No explanation. It just worked.
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    Thanks for your help Patrick. I tell ya, I can't believe what's going on. As I said, this project until today has not caused me any issues what-so-ever. The other six sessions are totally fine. I also created a quick project with the same settings added text - then exported using the same settings I've used before, and it exports with the proper alpha channel.
    Yet, I rebooted the Mac, made sure to delete old versions in the trash can and everything. Still, no alpha.
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  • Exporting with alpha channel and edges are ragged

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    I think you are just seeing the extra areas of the fill.
    If the output files works correctly in the editor, you should be good to go.
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  • I want to export with alpha channel using a codec that carries less data than gopro cineform

    Hi--I want to export some intermediate files with an alpha channel. i'm using gopro cineform, and these files end up being so large, meaning that i have to sit through hour long renders.  is there a a codec i can use that has an alpha chanel but creates a smaller file size?
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    Thanks for your help Patrick. I tell ya, I can't believe what's going on. As I said, this project until today has not caused me any issues what-so-ever. The other six sessions are totally fine. I also created a quick project with the same settings added text - then exported using the same settings I've used before, and it exports with the proper alpha channel.
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    Crazy!

  • Can't export with alpha channel

    PROBLEM: No matter what export settings I use or manipulate I can't get the exported movie to have an alpha channel.
    I've read several threads on this, and none of them solved my issue. Temporarily I just imported the Motion 3 project and used it as my overlay video - it's a title intro that slides out to reveal the video underneath it.
    However, I'd prefer to create self-contained QT's as there are 7 sessions.
    In After Effects I'd typically choose Animation and select 'using Straight Alpha'. Motion has a preset of Lossless + Alpha Movie, or you can go to advanced and select Output tab and deselect Pre-multiply Alpha. Neither works. The exported video still has black. What's totally insane is that I was using these settings up until today and everything was fine!
    And yes, I've chosen 'Transparent' under the view options and still black is always included.

    We do have an answer, it's usually a simple user error: not being able to tell the alpha is really there. If you're watching in QTPlayer, you will see black. If you open the movie in FCP, you should be able to change the alpha interp to suit.
    Even if OPs claim to have tried this, it's still the first thing that comes to mind and, since the OPs rarely return to tell us what REALLY happened, we are left with the assumption that this was the problem all along.
    If you set your render controls to Animation with millions of color + (many of us simply forget the PLUS) and we presume there is no solid shape or opaque layer (easily missed in Motion's weird timeline display) it is fundamentally impossible not to get an alpha.
    Not to say it can't happen but I've been on support forums for AE, Media 100, FCP and others for more than a decade and I have never heard of the Animation codec actually failing. It is always user error or a broken application.
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  • No Method of Batch Export for Clips with Alpha Channels?

    Good morning,
    As many a flustered editor has eventually discovered, in order for FCP to export sequences with alpha channels to a 32-bit format, the timeline has to be un-rendered at the time of export, or else the transparent parts will appear black in the outputted file. This sort-of makes sense if you know how FCP and render files work, but in a perfect world I think I'd have designed the export interface a bit differently. Now that I think about it, I'm actually working in an Animation (Millions of Colors +) sequence, so converting transparent areas to black makes no logical sense at all.
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    Thanks,
    Zap

    Thanks, Andy, "Batch Export" eventually did the trick!
    I forgot about that tool because I've never actually had to use it before! After playing around with it for a while, I found that as long as the sequence settings for each sequence in the batch are set to a codec with an activated alpha channel, it works just fine.
    Thanks again,
    Zap

  • Adding logo with Alpha channel to Quicktime and exporting as .mp4

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  • Export PNG images with alpha channel from flash

    Hi,
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    How is it that in flash this image has alpha channel and how to get it out like that into PNG?
    Here is the link to download the FLA:
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    "when played, the animation has alpha channel"
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    What was the file format of the original image? you brought that image into Flash and animated it? Now you want to export as a .png with transparency?
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    For those of us who may not want to download your file, please provide a more detailed describtion of everything related to this question.
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    Adninjastrator

  • Exporting a move clip with alpha channel

    Hi there,
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    Thanks alot for the help.
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  • Can no longer import QT files with alpha channel

    I have been using these client supplied QT with alpha channel files just fine for weeks, then all of a sudden, after a crash the other day, I was unable to open sequences with these files and exoprt them, the exporter would just freeze.  the clips played in the timeline, but VERY sluggish.
    On the reccomendation of a few posts around here, I removed the clips from the project, and now I cannot import them back in, I get a "the importer reported a generic error" message.  I am able to open in QT pro and export to a new file that will import to PPro, but I lose the alpha channel.
    As always, I'm up against a deadline and any help would be greatly appreciated.
    I have installed QT 7.07, no help.
    I'm on a windows 7 machine running CS master collection 5.0, Quad core AMD with 8 gig RAM.
    These files worked fine just days ago!!!!
    BTW, I just switched over to Premiere a few months ago and to honest I can't understand how anyone would stick with this buggy software, as a professional I've never used anything this bad before.

    Welcome to the forum.
    Try these.  Attempt to re-import after each one:
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    Launch Pr and while it's launching, hold down the Alt + Shift keys until the Welcome screen appears.  Alt resets your preferences and Shift resets the plug-in cache.
    To address the other issues you say you've been having with Pr, you should start a different thread (or threads).  Coming from other editors, there may be a difference in the way Pr does things that produce unexpected results that may be seen as bugs.  More serious issues, such as crashes, can often be caused by 3rd-party hardware like AJA, Matrox or BlackMagic and the associated drivers.  Outdated or incorrect drivers for audio and video cards can also cause problems.  I recommend that you start troubleshooting those areas first.
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    Adobe - Feature Request/Bug Report Form
    -Jeff

  • FLV files exported with Alpha have extra frames after end of sequence.

    Sequence is 588w x 486h Animation+ codec, talent chroma-key (Conduit) on track 2 with no background on track 1. Flash 8 is installed. When I export using the QuickTime Flash export component using On2 VP6 with Alpha Channel settings, the resulting FLV has additional frames up to around 20 seconds for a 2 minute sequence. These additional frames are a freeze of the last frame in the sequence. I tried several different sequence codecs/Spark codec with same result. Even setting an In and Out on the sequence does not help.
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    Exporting an Item Settings QuickTime (Animation+) files and then using Flash Encoder does work, but I am trying to avoid the extra steps. (250 sequences to export)
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    I have found what I believe the cause of the extra frames issue here, so I thought I would post it for others.
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  • ImageIO PNG Writing Slow With Alpha Channel

    I'm writing a project that generates images with alpha channels, which I want to save in PNG format. Currently I'm using javax.ImageIO to do this, using statements such as:
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    I really would appreciate any help you can give on this. It's very frustrating.
    Thanks again. Robert Redwood.

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