Thank you very much.

Am 25.03.2022 um 02:45 schrieb Larry Gritz:
Proposed fix: https://github.com/OpenImageIO/oiio/pull/3372



On Mar 24, 2022, at 12:40 PM, Larry Gritz <l...@larrygritz.com> wrote:

I see: https://stackoverflow.com/questions/21194530/what-does-mean-when-prepended-to-a-file-path


On Mar 24, 2022, at 11:57 AM, Larry Gritz <l...@larrygritz.com> wrote:

What does the \\? mean? Is there a reference you can send me about the exact syntax f these filenames?


On Mar 24, 2022, at 12:21 AM, Larry Gritz <l...@larrygritz.com> wrote:

I think I know what's going on here. At some point, we started recognizing some "REST" like filename structures as ways to communicate parameters to procedural image generators, and so I bet the "?" is throwing it off. I will investigate.


On Mar 23, 2022, at 9:23 AM, haggi <ha...@haggi.de> wrote:

Hi,

we just encountered a problem working with maktetx and windows unc paths. We use UNC path notation for accessing the files in our network like this:

maketx.exe -o C:\TextureCache\test1.tx \\produktion\dfs\images\Raumplan.png

This works great. But sometimes the pathnames are too long and our usual solution was to use a windows naming convention:

maketx.exe -o C:\TextureCache\test1.tx \\?\UNC\produktion\dfs\very...long...path\Raumplan.png

This can be tested locally with this lines:
maketx.exe -o C:\TextureCache\test1.tx \\?\C:\image.png
maketx.exe -o C:\TextureCache\test2.tx C:\image.png

The error message we get is:
/ImageInput::create() called with malformed filename/

Now comes the interesting part:
Since we use the maketx from Arnold renderer, I only have these two versions to compare but:

This was *not* a problem in maketx from OIIO 1.7.7

It is a problem in the version of OIIO 2.1 (or earlier somtime between 1.7.7 and 2.1)

Any ideas?

haggi
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--
Larry Gritz
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Larry Gritz
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Larry Gritz
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--
Larry Gritz
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