By the way, for a sufficiently small deep file, you can just dump the whole thing for inspection:
oiiotool --dumpdata:empty=0 mydeepfile.exr > out.log and examine all the individual values. If this is "wrong", something is really broken. > On Aug 23, 2016, at 10:30 PM, Larry Gritz <[email protected]> wrote: > > Weird! > > I don't suppose you can make a small test image that exhibits this behavior > and send it to me? > > -- lg > > >> On Aug 23, 2016, at 4:14 PM, Michael Breymann <[email protected] >> <mailto:[email protected]>> wrote: >> >> Hello--just getting into oiio dev and running into a strange issue with deep >> data. >> >> I'm seeing different sampled values between what oiio deep_value returns and >> what the Nuke sampler returns. My simple test case involves a sphere with >> RGB values between 0.0-1.0 over the surface, solid alpha (resulting in 1 >> sample/pixel), rendered to exr single scanline half float. >> >> Piping the image through Nuke's deepRead->deepSample returns different >> values than deepdata.deep_value(p,c,s) for the same pixel sample. For some >> pixels, the value of a channel is a match. For other pixels, the value of a >> channel is off by a small margin of ~.1. Oddly, the green channel seems more >> affected/inaccurate than other channels, for some pixels even returning a >> different sign, which makes me wonder if there's a color space issue at play >> here. >> >> I have not tested on the stable release (1.6) or any other branch. Any ideas? >> >> oiio version 1.7 (latest dev commit from 13 days ago) >> Nuke version 9.0v5 >> exr ilmimf 2.2.0 >> ilmbase 2.2.0 >> Windows x64 >> Visual Studio 2013 >> >> Regards, >> Mike >> >> >> >> >> -- >> >> >> .......:::::: Michael Breymann >> www.glyphfx.com <http://www.glyphfx.com/> ::::::....... >> _______________________________________________ >> Oiio-dev mailing list >> [email protected] <mailto:[email protected]> >> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org > > -- > Larry Gritz > [email protected] <mailto:[email protected]> > > > _______________________________________________ > Oiio-dev mailing list > [email protected] > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org -- Larry Gritz [email protected]
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