On 3/19/2022 6:19 PM, Larry Gritz
wrote:
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
-- lg
On Mar 14, 2022, at 12:56 PM, Larry Gritz <l...@larrygritz.com> 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 <nathanru...@gmail.com> 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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