Ah, might be the release I’m on then. I’m on 1.8. Probably a good time to
just fully update.

On Wed, 26 Feb 2020 at 6:21 PM, Larry Gritz <l...@larrygritz.com> wrote:

> I'm not seeing that behavior. Using the file you originally attached,
>
> $ oiiotool -info -v utils_test_input.1001.exr
> Reading utils_test_input.1001.exr
> utils_test_input.1001.exr : 2163 x 1141, 4 channel, half openexr
>     7 subimages: 2163x1141 [h,h,h,h], 2163x1141 [f], 2163x1141 [f,f,f],
> 2163x1141 [h,h,h], 2163x1141 [h,h,h], 2163x1141 [h,h,h], 2163x1141 [h,h,h]
> ...
>
> $ oiiotool -a --autotrim utils_test_input.1001.exr -o out.exr
> $ iinfo -v out.exr
> out.exr : 2163 x 1141, 4 channel, half openexr
>     7 subimages: 2163x1141 [h,h,h,h], 2163x1141 [f], 2163x1141 [f,f,f],
> 2163x1141 [h,h,h], 2163x1141 [h,h,h], 2163x1141 [h,h,h], 2163x1141 [h,h,h]
>
>
> So I'm getting the original set of data types in the output subimages as
> well.
> I tested against the current master. Haven't looked at old releases yet.
>
>
>
> On Feb 25, 2020, at 11:08 PM, Orion Holder-Monk <orionholderm...@gmail.com>
> wrote:
>
> So, if you run  oiiotool -i multipart_input.exr -a --autotrim -o
> multipart_output.exr with that exr and inspect the normals channel in both
> images you will see that the input.exr pixel data format is float, whereas
> the output becomes half.
> Basically all the subimages in this case are being converted to 'half'
> even if they were originally 'float'.
>
> On Wed, Feb 26, 2020 at 7:04 AM Larry Gritz <l...@larrygritz.com> wrote:
>
>> What do you mean by change data format?
>>
>>
>> On Feb 25, 2020, at 10:58 PM, Orion Holder-Monk <
>> orionholderm...@gmail.com> wrote:
>>
>> Thanks Larry,
>>
>> That all looks good for the behavior of the autotrim argument. In my
>> case, I *may* actually get away with some of these subimages being
>> cropped to the first images non-zero pixels (although obviously not
>> completely desirable), but having them change data format through the
>> oiiotool is actually what causes issues for me. Is that the expected
>> behavior with the tool? Fine if it is, as I can work around that and is
>> more out of interest.
>>
>> Apart from that, thanks again, really appreciate it.
>> Cheers
>> Orion
>>
>>
>> On Wed, 26 Feb 2020 at 5:23 AM, Larry Gritz <l...@larrygritz.com> wrote:
>>
>>> Proposed autotrim fix here:
>>> https://github.com/OpenImageIO/oiio/pull/2497
>>>
>>> For now, I'm keeping the --trim and --autotrim behavior to only trim to
>>> the union of nonzero regions of all the parts, since several apps that may
>>> read the exrs later have trouble with differing data windows per pert.
>>>
>>> It is possible for me to make an optional argument to --trim (off by
>>> default) that would allow it to make separate, tightest possible data
>>> windows, on a per-part basis. This would only be safe to do if you were
>>> absolutely sure that the only readers consuming the resulting files were ok
>>> with it. If this is important to anybody, let me know and I can add this
>>> feature.
>>>
>>> -- lg
>>>
>>>
>>> On Feb 24, 2020, at 2:52 PM, Jonathan Egstad <jegs...@earthlink.net>
>>> wrote:
>>>
>>> For reference here’s the check code in OpenEXR which verifies matching
>>> displayWindows when you author a MultiPart file:
>>>
>>> MultiPartOutputFile::Data::checkSharedAttributesValues() line 408:
>>>
>>> https://github.com/AcademySoftwareFoundation/openexr/blob/master/OpenEXR/IlmImf/ImfMultiPartOutputFile.cpp
>>>
>>> As others have said there’s no similar restriction on dataWindows
>>> matching and it’s the apps reading MultiPart exrs that choke.
>>>
>>> -j
>>>
>>> On Feb 24, 2020, at 1:13 PM, Orion Holder-Monk <
>>> orionholderm...@gmail.com> wrote:
>>>
>>> Thanks for the responses. Appreciate the insight.
>>>
>>> For now with the python code, I will look to implement in a similar way
>>> to the trim, and possibly move similar sized images into their
>>> own multipart image.
>>> I can also post it to the Foundry and Autodesk and see what they say,
>>> but also check some other apps I use gets tripped up by the different
>>> display windows.
>>>
>>> Thanks again,
>>> Orion
>>>
>>> On Tue, 25 Feb 2020 at 8:00 AM, Larry Gritz <l...@larrygritz.com> wrote:
>>> It's entirely possible that the reason I implemented oiiotool --trim as
>>> the union across parts is because I knew or discovered at the time that
>>> there were widely-used apps out there that would get gummed up if the
>>> windows didn't match on all the parts.
>>>
>>> The --autotrim issue of only considering the first image is separate and
>>> is a true bug, I will fix that right away.
>>>
>>> -- lg
>>>
>>>
>>> On Feb 24, 2020, at 12:55 PM, Marco Meyer <m...@marcomeyer-vfx.de>
>>> wrote:
>>>
>>> Had a silimar observation when trying creating autotrimmed multiparts
>>> and ultimately stuck with creating a union data window for all subimages so
>>> every app is happy with it.
>>>
>>> An interesting thing I noticed was that Beachball multipart example from
>>> openexr (
>>> https://github.com/AcademySoftwareFoundation/openexr-images/tree/master/Beachball
>>> )
>>> also can't be read in nuke and throws the 'Reader did not set bounding
>>> box' error, because it includes one subimage "whitebarmask.mask" that has a
>>> different data window.
>>> So I while I think openexr itself encourages datawindows per subimage,
>>> some of the apps unfortunately don't know how to handle it.
>>>
>>> One could assume the app developers use the official exr examples for
>>> the most basic compatibility testing... but here we are :)
>>>
>>>
>>> On Sun, 2020-02-23 at 23:09 -0800, Larry Gritz wrote:
>>>
>>> Aha, I see, I believe that oiiotool --autotrim sets the trim based on
>>> the first subimage (which is definitely wrong and I will fix right away),
>>> and --trim seems to trim all subimages to the union of the nonzero regions
>>> of all subimages (suboptimal, see below).
>>>
>>> It seems as if my assumption on --trim was that the different parts
>>> (what we call subimages) had to share the same data windows. In rereading
>>> the openexr docs now, it looks like that is not the case. Does anybody more
>>> familiar with OpenEXR want to comment?
>>>
>>> I'm really not sure what's up with RV and Nuke, though, but I wonder if
>>> they, too, are assuming that the data window will always be the same for
>>> all parts? (Is anybody from Autodesk or Foundry reading and can check?)
>>>
>>> Fixing --autotrim to work the same as --trim, rather than incorrectly
>>> trim all parts to the nonzero portion of the first part, is a no-brainer.
>>>
>>> However, fixing --trim/--autotrim to trim each part individually... I do
>>> worry that this might result in files that are unreadable by other apps.
>>>
>>> -- lg
>>>
>>>
>>> On Feb 23, 2020, at 7:01 PM, Orion Holder-Monk <
>>> orionholderm...@gmail.com> wrote:
>>>
>>> Hi Dev team
>>>
>>> I've just been trying to implement the auto-trim tool for multi-part
>>> exrs from oiiotool in a python set of tools.
>>> Reason I'm doing it is currently if I was to use oiiotool -i
>>> multipart_input.exr -a --autotrim -o multipart_output.exr, it will change
>>> all my parts to match the spec of the first part (so cropping to the first
>>> images visible pixels and change the data format etc).
>>>
>>> My implementation (below) is not raising any errors from oiio, but what
>>> happens is that I'm getting an 'incomplete image' warning in RV (although
>>> can see each image correctly) and a 'Reader did not set bounding box' error
>>> in Nuke.
>>>
>>> If I set the crop roi to be consistent for every part instead of unique
>>> per part, it creates the image fine and no warnings come up.
>>>
>>> Any help or suggestions would be greatly appreciated. (and if there's a
>>> simple oiiotool command that I could use as an alternative, please do say)
>>> And in terms of build, I am using 1.8.7.3, but have tested with 2.1 as
>>> well and get the same result.
>>> The below code if ran as a file will run with `python autotrim.py
>>> --input multipart_input.exr --output multipart_output.exr`
>>> I've also attempted to attach an example file to run it on, but it may
>>> be too big.
>>> Thanks!
>>> Orion
>>>
>>> Code below:
>>>
>>> import OpenImageIO as oiio
>>> import argparse
>>> # Current build is OpenImageIO-1.8.7.3
>>>
>>> parser = argparse.ArgumentParser(description='Autotrim multi-part exrs')
>>> parser.add_argument('--input', default='', help='Input filepath')
>>> parser.add_argument('--output', default='', help='Output filepath')
>>> args = parser.parse_args()
>>>
>>> def write_multipart_exr(out_image_path, buf_list, spec_list):
>>>     """
>>>     With an ordered list of ImageBuf's and correlating list of spec's
>>> this
>>>     will go through and write to the out_image_path.
>>>     """
>>>     out_img = oiio.ImageOutput.create(out_image_path)
>>>     out_img.open(out_image_path, tuple(spec_list))
>>>
>>>     for s in range(len(spec_list)):
>>>         img_buf = buf_list[s]
>>>         if s > 0:
>>>             append_success = out_img.open(out_image_path, spec_list[s],
>>> oiio.ImageOutputOpenMode.AppendSubimage) #"AppendSubImage" for 2.1
>>>             if not append_success: print out_img.geterror()
>>>
>>>         pixels = img_buf.get_pixels(oiio.FLOAT)
>>>
>>>         write_result = out_img.write_image(pixels)
>>>         if not write_result: print out_img.geterror()
>>>     out_img.close()
>>>
>>> def _autotrim_buffer(image_buffer):
>>>     new_spec = image_buffer.nativespec()
>>>
>>>     roi = oiio.get_roi(new_spec)
>>>
>>>     # If all the parts get given the same ROI to crop, the exr works fine
>>>     new_roi = oiio.ImageBufAlgo.nonzero_region(image_buffer, roi)
>>>
>>>     if new_roi.npixels == 0:
>>>         new_roi = oiio.ROI(roi.xbegin, roi.xbegin + 1, roi.ybegin,
>>> roi.ybegin + 1, roi.zbegin, roi.zbegin + 1,
>>>                            roi.chbegin, roi.chend)
>>>
>>>     new_buffer = oiio.ImageBuf(new_spec)
>>>
>>>     result = oiio.ImageBufAlgo.crop(new_buffer, image_buffer, new_roi)
>>>
>>>     if not result: raise OpenImageIOException(new_buffer.geterror())
>>>     return new_buffer
>>>
>>> def autotrim(image_path, output_image_path):
>>>     image_path = str(image_path)
>>>     output_image_path = str(output_image_path)
>>>     image_buffer = oiio.ImageBuf(image_path)
>>>
>>>     buffer_list = []
>>>     spec_list = []
>>>     nsubimages = image_buffer.nsubimages
>>>     for n in range(nsubimages):
>>>         img_buff = oiio.ImageBuf(image_path, n, 0)
>>>
>>>         new_buff = _autotrim_buffer(img_buff)
>>>
>>>         spec = new_buff.spec()
>>>
>>>         buffer_list.append(new_buff)
>>>
>>>         spec_list.append(spec)
>>>
>>>     write_multipart_exr(output_image_path, buffer_list, spec_list)
>>>
>>> autotrim(args.input, args.output)
>>>
>>> Cheers!
>>> Orion
>>>
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>>> <utils_test_input.1001.exr>_______________________________________________
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>>>
>>> --
>>> Larry Gritz
>>> l...@larrygritz.com
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>>
>>> --
>>> Larry Gritz
>>> l...@larrygritz.com
>>>
>>>
>>>
>>>
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>>>
>>> --
>>> Larry Gritz
>>> l...@larrygritz.com
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Oiio-dev mailing list
>>> Oiio-dev@lists.openimageio.org
>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
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>>
>>
>> --
>> Larry Gritz
>> l...@larrygritz.com
>>
>>
>>
>>
>> _______________________________________________
>> Oiio-dev mailing list
>> Oiio-dev@lists.openimageio.org
>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>
> _______________________________________________
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>
>
> --
> Larry Gritz
> l...@larrygritz.com
>
>
>
>
> _______________________________________________
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> Oiio-dev@lists.openimageio.org
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
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