clean.exr definitely is a solid color and so is output.tif, so there is no way to tell if the garbling happened or not. It doesn't matter... I've got a repro .exr file I can send you that shows the issue, and although the garbling pattern looks a bit different I'm pretty sure it's the same issue.
On Tue, Oct 4, 2016 at 5:04 PM, Larry Gritz <[email protected]> wrote: > wha? clean.exr should definitely be a solid color as a result of the > --fill ! > > > On Tue, Oct 4, 2016 at 4:55 PM, Eric Tabellion < > [email protected]> wrote: > >> There is no obvious way to tell if it worked or not: clean.exr is now a >> constant color, and the "garbling" looks like some pixel scanline / block >> interleaving bug. Looks interesting, a bit like a mix between pixelation >> and what you'd get out of rendering on fields. I'll see if I can repro the >> image format and send you some non-sensitive useable data. >> >> On Tue, Oct 4, 2016 at 4:13 PM, Larry Gritz <[email protected]> wrote: >> >>> Does this work? >>> >>> oiiotool secret.exr -fill:color=.1,.2,.3,1 4096x4096 -o clean.exr >>> oiiotool clean.exr --ch "R" --dither --colorconvert linear sRGB -d uint8 >>> -o output.tif >>> >>> does that fail in the same way? >>> >>> (I'm trying to coax it into taking whatever's odd with your file, >>> substituting a color that clobbers all your secret images, and hoping it >>> still fails in some way so you can send me the file.) >>> >>> >>> On Tue, Oct 4, 2016 at 4:02 PM, Eric Tabellion < >>> [email protected]> wrote: >>> >>>> There is something fishy with our files that is tripping this bug. If I >>>> paint an image in gimp, save it out, convert to an RGB .exr and run it >>>> through the first command, it works just fine. >>>> >>>> Here is what I can say about one of our files that causes the issue: >>>> >>>> iinfo -v input.exr >>>> input.exr : 4096 x 4096, 4 channel, half openexr >>>> channel list: R, G, B, A >>>> tile size: 256 x 256 >>>> oiio:ColorSpace: "Linear" >>>> compression: "zip" >>>> PixelAspectRatio: 1 >>>> screenWindowCenter: 0 0 >>>> screenWindowWidth: 1 >>>> >>>> exrheader input.exr >>>> >>>> file input.exr: >>>> >>>> file format version: 2, flags 0x200 >>>> channels (type chlist): >>>> A, 16-bit floating-point, sampling 1 1 >>>> B, 16-bit floating-point, sampling 1 1 >>>> G, 16-bit floating-point, sampling 1 1 >>>> R, 16-bit floating-point, sampling 1 1 >>>> compression (type compression): zip, multi-scanline blocks >>>> dataWindow (type box2i): (0 0) - (4095 4095) >>>> displayWindow (type box2i): (0 0) - (4095 4095) >>>> lineOrder (type lineOrder): increasing y >>>> pixelAspectRatio (type float): 1 >>>> screenWindowCenter (type v2f): (0 0) >>>> screenWindowWidth (type float): 1 >>>> tiles (type tiledesc): >>>> single level >>>> tile size 256 by 256 pixels >>>> type (type string): "tiledimage" >>>> >>>> >>>> On Tue, Oct 4, 2016 at 3:57 PM, Eric Tabellion < >>>> [email protected]> wrote: >>>> >>>>> # This fails (repeat of my first email) >>>>> oiiotool input.exr --ch "R" --dither --colorconvert linear sRGB -d >>>>> uint8 -o output.tif >>>>> >>>>> # This fails too (removing --colorconvert): >>>>> oiiotool input.exr --ch "R" --dither -d uint8 -o output.tif >>>>> >>>>> # This works!!! (removed -d uint8). But then my colorspace is off... >>>>> oiiotool input.exr --ch "R" --dither --colorconvert linear sRGB -o >>>>> output.tif >>>>> >>>>> >>>>> On Tue, Oct 4, 2016 at 3:47 PM, Larry Gritz <[email protected]> wrote: >>>>> >>>>>> If you don't do the --colorcorrect, but you do everything else, do >>>>>> you still get something garbled? >>>>>> >>>>>> >>>>>> On Tue, Oct 4, 2016 at 3:42 PM, Eric Tabellion < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> Feel free to ignore this request entirely on the maketx side. I >>>>>>> realize it's a version of maketx I modified weeks ago, adding a >>>>>>> "--dither" >>>>>>> command-line option (a seemingly trivial addition when looking at the >>>>>>> oiiotool code). >>>>>>> >>>>>>> The request for oiiotool holds though. I was able to repro the issue >>>>>>> with a fresh build of the freshly pulled master branch and Release-1.7.7 >>>>>>> tag. >>>>>>> >>>>>>> On Tue, Oct 4, 2016 at 2:41 PM, Eric Tabellion < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> I'm using OpenImageIO 1.6.13 but using a slightly modified version >>>>>>>> with our own build scripts. Let me try a stock build with a more recent >>>>>>>> version. >>>>>>>> >>>>>>>> On Tue, Oct 4, 2016 at 1:37 PM, Larry Gritz <[email protected]> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Weird. Here is the the last email I sent, right here on the list. >>>>>>>>> But my previous two replies have not shown up in my inbox. >>>>>>>>> >>>>>>>>> >>>>>>>>> On Oct 4, 2016, at 1:27 PM, Larry Gritz <[email protected]> wrote: >>>>>>>>> >>>>>>>>> The mail server from openimageio.org seems at the moment to be, >>>>>>>>> if not broken, then at least significantly delaying things in the >>>>>>>>> queue. >>>>>>>>> >>>>>>>>> So resending with Eric directly CC'd so he doesn't think I'm >>>>>>>>> ignoring. >>>>>>>>> >>>>>>>>> I'm having trouble reproducing. Which version of OIIO are you >>>>>>>>> using? >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Mon, Oct 3, 2016 at 11:40 AM, Eric Tabellion < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> Hi, >>>>>>>>>> >>>>>>>>>> I'm trying to convert grayscale (half) float linear .exr images >>>>>>>>>> into 8-bit sRGB render-ready .tx files, while using dithering in the >>>>>>>>>> process with --dither. >>>>>>>>>> >>>>>>>>>> When the input image is 3-channel color data the conversion works >>>>>>>>>> fine. However when the image is single channel, --dither seems to >>>>>>>>>> choke up >>>>>>>>>> a garbled image. Converting the image from 3-channel down to single >>>>>>>>>> channel >>>>>>>>>> at the same time as using --dither won't work either. >>>>>>>>>> >>>>>>>>>> For example either of these two commands below will produce >>>>>>>>>> garbled images using RGBA inputs: >>>>>>>>>> >>>>>>>>>> oiiotool input.exr --ch "R" --dither --colorconvert linear sRGB >>>>>>>>>> -d uint8 -o output.tif >>>>>>>>>> >>>>>>>>>> maketx input.exr --nchannels 1 --dither --colorconvert linear >>>>>>>>>> sRGB -d uint8 --oiio --compression zip -o output.tx >>>>>>>>>> >>>>>>>>>> I'm trying to get this all done in one maketx pass, but so far >>>>>>>>>> the only way I got this to work is doing this: >>>>>>>>>> >>>>>>>>>> oiiotool input.exr --dither --colorconvert linear sRGB -d uint8 >>>>>>>>>> -o tmp.tif >>>>>>>>>> maketx tmp.tif --nchannels 1 --oiio --compression zip -o output.tx >>>>>>>>>> >>>>>>>>>> This doesn't work though if the input image is already >>>>>>>>>> single-channel. Anyone else can reproduce this ? Could this be a >>>>>>>>>> --dither >>>>>>>>>> bug when dithering single channel images? >>>>>>>>>> >>>>>>>>>> Thanks! >>>>>>>>>> Eric >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> --------------------------------------------------------------- >>>>>>>>>> Eric Tabellion [email protected] >>>>>>>>>> R&D Staff (650)-562-9146 >>>>>>>>>> PDI/Dreamworks >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Oiio-dev mailing list >>>>>>>>>> [email protected] >>>>>>>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimage >>>>>>>>>> io.org >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Larry Gritz >>>>>>>>> [email protected] >>>>>>>>> _______________________________________________ >>>>>>>>> Oiio-dev mailing list >>>>>>>>> [email protected] >>>>>>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Larry Gritz >>>>>>>>> [email protected] >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> --------------------------------------------------------------- >>>>>>>> Eric Tabellion [email protected] >>>>>>>> R&D Staff (650)-562-9146 >>>>>>>> PDI/Dreamworks >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> --------------------------------------------------------------- >>>>>>> Eric Tabellion [email protected] >>>>>>> R&D Staff (650)-562-9146 >>>>>>> PDI/Dreamworks >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Oiio-dev mailing list >>>>>>> [email protected] >>>>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Larry Gritz >>>>>> [email protected] >>>>>> >>>>>> _______________________________________________ >>>>>> Oiio-dev mailing list >>>>>> [email protected] >>>>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> --------------------------------------------------------------- >>>>> Eric Tabellion [email protected] >>>>> R&D Staff (650)-562-9146 >>>>> PDI/Dreamworks >>>>> >>>>> >>>> >>>> >>>> -- >>>> --------------------------------------------------------------- >>>> Eric Tabellion [email protected] >>>> R&D Staff (650)-562-9146 >>>> PDI/Dreamworks >>>> >>>> >>>> _______________________________________________ >>>> Oiio-dev mailing list >>>> [email protected] >>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>>> >>>> >>> >>> >>> -- >>> Larry Gritz >>> [email protected] >>> >>> _______________________________________________ >>> Oiio-dev mailing list >>> [email protected] >>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >>> >>> >> >> >> -- >> --------------------------------------------------------------- >> Eric Tabellion [email protected] >> R&D Staff (650)-562-9146 >> PDI/Dreamworks >> >> >> _______________________________________________ >> Oiio-dev mailing list >> [email protected] >> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >> >> > > > -- > Larry Gritz > [email protected] > > _______________________________________________ > Oiio-dev mailing list > [email protected] > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org > > -- --------------------------------------------------------------- Eric Tabellion [email protected] R&D Staff (650)-562-9146 PDI/Dreamworks
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