[Bf-vfx] Problems and bugs regarding VFX editing in Blender

[Matt Ebb]

On Tue, Sep 27, 2011 at 8:39 AM, Troy Sobotka <troy.sobotka at gmail.com>wrote:

>
>
> > 2. There is a problem with transparent quicktime videos. These are quite
> often used as source video files for various VFX (for example, I've bought
> Action Essentials 2 from videocopilot.net). It seems that in some cases
> Blender isn't able to read the alpha channel from quicktime video.
>
> When you speak of "transparent Quicktime videos" you are actually
> talking about a wrapper with a codec inside. I'll make an assumption
> you mean an h264  via an MOV with an alpha channel.
>
> The quicktime 'Animation' codec (lossless, similar to png) supports
transparency - it worked for me many years ago but I haven't tried it
lately. Other than blender now not understanding it, perhaps if ffmpeg is
reading the quicktime file rather than the quicktime api, it may not support
it.
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