Looks like -d didn't work correctly at all for deep files.
I believe I have a fix for this: https://github.com/OpenImageIO/oiio/pull/3369
<https://github.com/OpenImageIO/oiio/pull/3369>
-- lg
> On Mar 14, 2022, at 12:56 PM, Larry Gritz <[email protected]> wrote:
>
> That looks like the right command syntax, but I'm wondering if there is a bug
> specifically for deep files where the per-channel format setting is not
> working properly. Will investigate.
>
> -- lg
>
>
>> On Mar 14, 2022, at 12:53 PM, Nathan Rusch <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Hey all,
>>
>> I'm having zero success trying to set per-channel formats for a deep EXR,
>> and am trying to determine whether or not this is a bug, or me misusing
>> `oiiotool`.
>>
>> The input files have 4 channels: `A`, `Z`, `ZBack`, and `deep`, all of which
>> are 32-bit float. I'm trying to fix some bad channel formats, so I just need
>> to flip the `A` and `deep` channels to be half-float, without doing any kind
>> of data transformation.
>>
>> I've been able to do this successfully using the Python API (as long as I
>> write an ImageBuf via an ImageOutput, rather than directly to a path), and
>> was hoping the same could be done using `oiiotool` for easier batch usage,
>> so I tried this:
>>
>> `oiiotool -i /path/to/input_file.exr -d half -d Z=float -d ZBack=float -o
>> /path/to/output_file.exr`
>>
>> This produces a file whose channels are all half, rather than respecting the
>> overrides for `Z` and `ZBack`.
>>
>> I also tried flipping the channel-specific specifiers:
>>
>> `oiiotool -i /path/to/input_file.exr -d float -d A=half -d deep=half -o
>> /path/to/output_file.exr`
>>
>> This produces a file whose channels are all float; I get the same result if
>> I drop the "default" specifier and just pass the channel-specific overrides
>> (knowing that the input data is already float):
>>
>> `oiiotool -i /path/to/input_file.exr -d A=half -d deep=half -o
>> /path/to/output_file.exr`
>>
>> This is using OIIO 2.3.11.0.
>>
>> Thanks for any insights. Please let me know if I should open a Github issue,
>> or if this is just user error.
>>
>> -Nathan
>> _______________________________________________
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>> [email protected] <mailto:[email protected]>
>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>
> --
> Larry Gritz
> [email protected] <mailto:[email protected]>
>
>
>
>
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--
Larry Gritz
[email protected]
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