2011/4/4 Matteo Sisti Sette <[email protected]> > 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 <[email protected] >> <mailto:[email protected]>> >> >> 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. >> >> _______________________________________________ >> [email protected] <mailto:[email protected]> mailing list >> >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> >> >> >
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