Re: [Openexr-devel] OpenEXR 1.5.0, OpenEXR-Images 1.5.0 released

[Ken McGaugh]

Hi Florian,

Many thanks for what appears to be a significant release.

I have problems building this one though.  I am on a macbook pro under
OSX with openexr-1.4.0 already installed.  I get the following  
warning for
every source file compiled in the openexr library:

    i686-apple-darwin8-g++-4.0.1: unrecognized option '-pthread'

It then fails compiling exrheader with:

    main.cpp: In function 'void printCompression(Imf::Compression)':
    main.cpp:98: error: 'B44_COMPRESSION' was not declared in this  
scope
    main.cpp: In function 'void printChannelList(const  
Imf::ChannelList&)':
    main.cpp:265: error: 'const struct Imf::Channel' has no member  
named 'pLinear'

After uninstalling the 1.4.0 version of openexr and starting over it  
built and installed
correctly, however the -pthread warning still exists.

Thanks again.
--Ken

On 16 Dec 2006, at 02:52, Florian Kainz wrote:

> December 15, 2006 - a new development version of OpenEXR is now  
> available.
> We have tested the code in this version internally at ILM, but we  
> would
> like to get feedback from others before we release a production  
> version.
> You can download the source code and sample images from here:
>
> http://download.savannah.gnu.org/releases/openexr
>
> The new version includes several significant changes:
>
> * OpenEXR supports a new image compression method, called B44.  It has
>   a fixed compression rate of 2.28:1, or 4.57:1 if used in combination
>   with luminance/chroma encoding.  B44-compressed images can be
>   uncompressed fast enough to support real-time playback of image
>   sequences.
>
> * The new playexr program plays back moving image sequences.  Playexr
>   is multi-threaded and utilizes the threading capabilities of the  
> IlmImf
>   library that were introduced in OpenEXR 1.3.0.  The program plays  
> back
>   B44-compressed images with fairly high-resolution in real time on
>   commodity hardware.
>
> * The playexr program and a new version of the existing exrdisplay  
> image
>   viewer both support color rendering via color transforms written in
>   the new Color Transformation Language or CTL.
>
>   CTL is not part of OpenEXR; it will be released separately.
>
>   CTL support in playexr and exrdisplay is optional; the programs can
>   be built and will run without CTL.
>
> * In preparation for the release of CTL, OpenEXR has been split into
>   three separate packages:
>
>      - IlmBase 0.9.0 includes the Half, Iex, Imath and IlmThread  
> libraries
>
>      - OpenEXR 1.5.0 includes the IlmImf library, programming examples
>        and utility programs such as exrheader or exrenvmap
>
>      - OpenEXRViewers 0.9.0 includes the playexr and exrdisplay  
> programs
>
> * The "Technical Introduction to OpenEXR" document now includes a
>   recommendation for storing CIE XYZ pixel data in OpenEXR files.
>
> * A new "OpenEXR Image Viewing Software" document describes the
>   playexr and exrdisplay programs.  It briefly explains real-time
>   playback and color rendering, and includes recommendations for
>   testing if other image viewing software displays OpenEXR images
>   correctly.
>
> * The OpenEXR sample image set now includes B44-compressed files and
>   files with CIE XYZ pixel data.
>
>
>
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