How does this look as a potential way to address this case? https://github.com/OpenImageIO/oiio/pull/2575 <https://github.com/OpenImageIO/oiio/pull/2575>
> On May 5, 2020, at 5:25 PM, Larry Gritz <l...@larrygritz.com> wrote: > > Oof, that is currently an awkward thing to do. > > I think I know a way to do it, with some changes. Stay tuned, I'll try > something tonight. > > -- lg > > >> On May 5, 2020, at 6:37 AM, Andreas Ekoutsidis >> <andreas.ekoutsi...@ilpvfx.com <mailto:andreas.ekoutsi...@ilpvfx.com>> wrote: >> >> Hi, >> >> Is it possible to only operate on one subimage and still keep the rest >> untouched? >> >> In my case I get EXRs from comp that have mattes as separate subimages in >> the EXR. I want to perform a colorconvert on the main subimage of the EXRs, >> but if I do so I lose the rest of the subimages: >> >> oiiotool /path/to/frame.exr --colorconvert linear AlexaV3LogC -o >> /path/to/out.exr >> >> By reading around on the mail list here, I then got inspired into trying >> this: >> >> oiiotool /path/to/frame.exr --subimage main --colorconvert linear >> AlexaV3LogC /path/to/frame.exr --subimage matte1 --siappendall -o >> /path/to/out.exr >> >> This will indeed create an EXR with the same number of subimages as before, >> but the "matte1" remains completely empty. Subimage "main" has in this case >> the channels "R, G, B, A" and "matte1" have the channels "red, green, blue, >> alpha". >> >> What did I do wrong? Is this possible? >> >> I have tried this in both 1.8.17 and 2.0.12. >> >> Thanks in advance, >> Andreas >> _______________________________________________ >> Oiio-dev mailing list >> Oiio-dev@lists.openimageio.org <mailto:Oiio-dev@lists.openimageio.org> >> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org > > -- > Larry Gritz > l...@larrygritz.com <mailto:l...@larrygritz.com> > > > > > _______________________________________________ > Oiio-dev mailing list > Oiio-dev@lists.openimageio.org > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org -- Larry Gritz l...@larrygritz.com
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