[PD] pix_film alpha in Linux

[tim vets]

2011/4/4 Matteo Sisti Sette <matteosistisette at gmail.com>

> Hi,
>
> No, I am not using pix_alpha, because that's not what I need.
> pix_alpha changes the value of the alpha channel, so that pixels within a
> given range of colors _become_ transparent.
>
> In my case the video file itsalf already has an alpha channel and I want
> the pixels that are transparent to remain transparent.
>
> yes, after sending it, I realized that it's probably not what you're
looking for.
sorry for the noise :)
Tim

> Thanks
> m.
>
>
> On 04/04/2011 07:13 PM, tim vets wrote:
>
>> Hi Matteo,
>> are you using pix_alpha?
>> you could try this patch here, which works on my system, with a video
>> encoded as "JPEG still images" (properties window video tab in gnome)
>> ubuntu 10.10, pd 0.42-5 extended.
>> gr,
>> Tim
>>
>> 2011/4/4 Matteo Sisti Sette <matteosistisette at gmail.com
>> <mailto:matteosistisette at gmail.com>>
>>
>>    Hi,
>>
>>    I'm trying this:
>>
>>    [pix_film]
>>      |
>>    [pix_texture]
>>      |
>>    [alpha]
>>      |
>>    [rectangle]
>>
>>    I'm using some videos that have an alpha channel and I had tried
>>    them previously in Windows and Mac and they were rendered correctly
>>    with their transparent background.
>>
>>    Now I am trying the same in Linux and the videos are opaque, as if
>>    they didn't have an alpha channel or as if they had an opaque black
>>    background.
>>
>>    I've already tried sending "colorspace RGBA" to pix_film, but
>>    nothing changes.
>>
>>    I'm almost sure the videos were encoded with the Apple Animation+
>>    encoder but if i right-click them in Ubuntu and select "properties"
>>    it says "run-length encoder". What is sure is that i tested them in
>>    Windows and Linux and used to work.
>>
>>    Any idea?
>>
>>    thanks
>>    m.
>>
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>
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