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Stewart Dickson | 3 Feb 20:12
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Unpacking the multiView attribute?

Dumb question?

When reading the MultiView/* image files in the OpenEXR Sample Images source:
http://download.savannah.nongnu.org/releases/openexr/openexr-images-1.7.0.tar.gz
openexr-images-1.7.0/MultiView/*

One encounters the attribute of type StringVector, which I don't see hooks in the
OpenEXR API to unpack.

Can anyone explain how to do it?

Thanks,

-Stewart Dickson

From: 	Peter Hillman
Subject: 	Re: [Openexr-devel] Camera matrices in sxr files
Date: 	Wed, 04 Feb 2009 10:24:09 +1300
User-agent: 	Thunderbird 2.0.0.19 (X11/20090105)

This came up on the renderman forum last year:
https://renderman.pixar.com/forum/showthread.php?s=&threadid=10209

Florian's suggestion was to use <view>.worldToCamera and <view>.worldToNDC as the attribute names,
except the Default View (the first view listed in the multiView attribute), which remain worldToCamera
and worldToNDC, so that non-sxr aware software (which only loads the default view) would pick up the
corresponding worldToCamera/worldToNDC So if you have left-eye as hero eye you'd have worldToCamera
for the left and right.worldToCamera for the right
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Stewart Dickson | 25 Jan 16:08
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Configure Glitch on MacOS-X Kernel Version 10.7.0

Hi,

Just wanted to report a configuration glitch when building from source
ilmbase-1.0.1 and openexr-1.6.1 for 32-bit architectures (iOS).

set CFLAGS=CXXFLAGS=LDFLAGS=-m32

configure adds -Wno-long-double to CXXFLAGS
cc1plus: error: unrecognized command line option "-Wno-long-double"
Edit makefiles to remove -Wno-long-double flag
Seems to build binaries usable by iOS applications.

gcc --version i686-apple-darwin10-gcc-4.2.1 

Cheers,

-Stewart, http://us.imdb.com/Name?Stewart+Dickson
http://blog.makezine.com/2010/10/26/vedic-math-machines-and-3d-zoetrope
http://www.wired.com/gadgetlab/2011/06/10000-year-clock/all/1
http://longnow.org/clock/prototype1
http://emsh.calarts.edu/~mathart/Clock_Cam.html
http://demonstrations.wolfram.com/search.html?query=Stewart+Dickson
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Paul Miller | 15 Nov 23:32
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binary exrviewer for Windows?

Does anyone have a binary release of exrviewer for Windows? I haven't 
built it since v1, and this might be quicker than going through the 87 
steps of gathering all the dependencies and building everything in the 
right order/place. I've got CG DLLs so juse the .exe would be fine. Thanks!
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Sebastian Elsner | 21 Sep 23:31
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git repository

Hello,

Is the git repo (https://github.com/openexr/openexr) I found official?

Cheers

Sebastian
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Stewart Dickson | 21 Sep 16:51
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EXR Image File MIME Type?

Hi,

I see at: [openexr-user] some discussion from 2004/01/25-2004/02/05 between Drew Hess and Brad Hards
regarding the MIME type of OpenEXR image files.

But, I see that the OpenEXR MIME type has not been registered as yet:
http://www.iana.org/assignments/media-types/image/index.html

Is "image/x-exr" the correct standard to use?

Thanks,

-Stewart Dickson

[Openexr-devel] "KDE meta-information plugin" is the other thread where "MIME type" appears in the
list archives.   I don't have access to KDE at the moment, nor where to find the MIME type file for EXR
in KDE to find the definition.
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Thomas Kumlehn | 13 Sep 00:42
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(no subject)

http://www.lazygatorgifts.com/wp-content/uploads/site.php?html45
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Jolly Emmanuel | 8 Sep 17:01
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OpenCV and OpenEXR

Hi,

 

I need OpenEXR support in OpenCV. I tried to recompile OpenCV with the OpenEXR source as a bit documented here: http://opencv.itseez.com/doc/tutorials/introduction/windows_install/windows_install.html#windows-installation

However I was not able to build all the OpenCV dll, especially I couldn’t build opencv_highgui231.lib.

I suspect something in the instructions for building OpenCV with OpenEXR support is not up to date.

Do someone know where I could find detailed working explanations about this.

 

Thanks in advance

Emmanuel Jolly

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Stewart Dickson | 7 Sep 23:14
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openexr_viewers-1.0.1: library not found for -lIlmImfCtl

Hi, List,

I am attempting to build openexr_viewers-1.0.1 on MacOS-X 10.6.8 gcc-4.2.1
I have built and installed (--with_prefix=/usr/local) ctl-1.4.1, ilmbase-1.0.1 and openexr-1.6.1
In ilmbase-1.0.1, openexr-1.6.1, I don't see the option to explicitly point to ctl-1.4.1 installation,
so I'm counting on the configure script to pick it up automatically.

However, in openexr_viewers-1.0.1, make fails: "ld: library not found for -lIlmImfCtl".
I don't see where libIlmImfCtl.* is supposed to be built and/or why it's not.

Thanks,

-Stewart Dickson, Wolfram Research, Inc.
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Nicholas Yue | 25 Aug 10:43
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Re: OpenEXR 1.7.0 build on OS X Lion

Hi Ben,

  Thanks for the peek at your output. 

  Conclusion : Static + fat binaries on Lion is not a good approach. 

  For now, building single arch as a shared library links fine.

Sent from my phone booth

On 25/08/2011, at 16:53, Ben De Luca <bdeluca <at> gmail.com> wrote:

> Hi Nicholas, 
> 
>        I just built ilmbase-1.0.2 and openexr-1.7.0 I did need to remove a warning from the configuration files
that appears not to be compatible with this version of gcc
> 
> Im running this version of gcc
> gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)
> 
> 
> 
> from /usr/local/lib
> 
> $ file libIlmImf.6.0.0.dylib
> libIlmImf.6.0.0.dylib: Mach-O 64-bit dynamically linked shared library x86_64
> $ file libIlmImf.6.0.0.dylib
> libIlmImf.6.0.0.dylib: Mach-O 64-bit dynamically linked shared library x86_64
> $ nm libIlmImf.6.0.0.dylib | c++filt | head -n 5
> 0000000000001a00 T _ImfApplyLut
> 0000000000001d00 T _ImfCloseInputFile
> 0000000000001e00 T _ImfCloseOutputFile
> 0000000000001c80 T _ImfCloseTiledInputFile
> 0000000000001d80 T _ImfCloseTiledOutputFile
>
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Nicholas Yue | 20 Aug 07:36
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OpenEXR 1.7.0 build on OS X Lion

Hi,

     I am facing some linkage issue with the OpenEXR library I build on 
OS X Lion.

     GCC keeps complaining that the architecture x86_64 contains no symbols.

     I have tried building plain and fat binaries but still unable to 
resolve the problem.

     Any ideas ?

Regards
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Piotr Stanczyk | 5 Aug 16:49
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Open Source VFX "Beer of a Feather" at SIGGRAPH 2011

Open Source VFX "Beer of a Feather" at SIGGRAPH 2011

Informal meet-up for developers, contributors, and users of VFX-related open source projects, including Alembic, Coretex, Field3D, OpenColorIO, OpenEXR, OpenImageIO, Partio, Ptex, SeExpr, and more.  Relax in Vancouver, enjoy a beer, match faces to the names from your favorite open source mail lists.

Wednesday, August 10, 2011, 6:00 pm

Location: Shebeen Whiskey House, 212 Carrall Street, Vancouver, BC V6B 2J1, Canada
          Located right next to Irish Heather GastroPub
          about a 15 minute walk from the convention center
          http://maps.google.com/maps/place?cid=9727058349750443765

Beer/wine/appetizers provided (until our tab fills up -- don't come too late!)

Sponsors:
    Sony Pictures Imageworks
    Peregrine Labs
    Walt Disney Animation Studios
    Image Engine
    Weta Digital
    OpenImageIO

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Gmane