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How do I import a video without background in After Effects?

Published in After Effects 3 mins read

To import a video with a transparent background into After Effects, you need to ensure the video was created and exported with a transparent background (often using a codec that supports an alpha channel) and then configure the render settings correctly. Here's how:

Steps to Import and Render with Transparency:

  1. Ensure your Source Video Has Transparency: The video you are importing must already have a transparent background. This means it was likely created using software like After Effects, Blender, or other video editing programs that support alpha channels. Common file formats are .mov (with codecs like ProRes 4444 or Animation) or .avi (with an alpha channel codec).

  2. Import the Video: Simply drag and drop your video file into the After Effects project panel, or use File > Import > File... to import it.

  3. Create a Composition: Drag the imported video from the Project panel onto the "Create a new composition" button (the little film strip icon at the bottom of the project panel). This will automatically create a composition with the video layer.

  4. Verify Transparency (If Necessary): If you're uncertain whether transparency exists, create a solid color layer underneath your video layer in the timeline. If the background of your video is truly transparent, you'll see the solid color layer showing through.

  5. Rendering for Export (If Creating Video with Transparency): If you're creating a video WITH transparency in After Effects (and not just importing one), these are the settings you need.

    • Composition > Add to Render Queue: Go to Composition > Add to Render Queue.

    • Output Module Settings: In the Render Queue panel, click on "Lossless" next to "Output Module".

    • Format: Choose a format that supports transparency. Common choices are:

      • QuickTime: A versatile option, especially with the following codec:
        • Codec: Select "Apple ProRes 4444". This codec supports an alpha channel for transparency and maintains good quality.
      • AVI: If you need AVI, ensure you select a codec within AVI that supports an alpha channel.

    • Channels: Crucially, make sure the "Channels" setting is set to "RGB + Alpha". This tells After Effects to include transparency information in the exported file. If it's set to "RGB," your background will likely be black or white instead of transparent.

    • Click OK.

    • Output To: Specify the location where you want to save the rendered video.

    • Render: Click the "Render" button in the Render Queue to start the rendering process.

Troubleshooting:

  • Black or White Background Instead of Transparency: This usually means the "Channels" setting in the Output Module is not set to "RGB + Alpha" or that your chosen codec doesn't support transparency.
  • File Format Issues: Some older video players or software may not correctly interpret alpha channels in certain video formats. Try a different codec or video player.

By following these steps, you should be able to import and work with videos that have transparent backgrounds in After Effects.

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