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> 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
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--
Larry Gritz
l...@larrygritz.com
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