# The graphics/openexr,-main port

## OpenEXR-1.6.1p2 – high dynamic range image format

## Description

    OpenEXR is a high dynamic-range (HDR) image file format developed
    by Industrial Light & Magic for use in computer imaging applications.

    OpenEXR is used by ILM on all motion pictures currently in production.
    The first movies to employ OpenEXR were Harry Potter and the Sorcerers
    Stone, Men in Black II, Gangs of New York, and Signs. Since then,
    OpenEXR has become ILM's main image file format.

    OpenEXR's features include:

    * Higher dynamic range and color precision than existing 8- and 10-bit
    image file formats.
    * Support for 16-bit floating-point, 32-bit floating-point, and 32-bit
    integer pixels. The 16-bit floating-point format, called "half",
    is compatible with the half data type in NVIDIA's Cg graphics
    language and is supported natively on their new GeForce FX and
    Quadro FX 3D graphics solutions.
    * Multiple lossless image compression algorithms. Some of the included
    codecs can achieve 2:1 lossless compression ratios on images with
    film grain.
    * Extensibility. New compression codecs and image types can easily
    be added by extending the C++ classes included in the OpenEXR
    software distribution. New image attributes (strings, vectors,
    integers, etc.) can be added to OpenEXR image headers without
    affecting backward compatibility with existing OpenEXR applications.

    ILM has released OpenEXR as free software. The OpenEXR software distribution includes:

    * IlmImf, a library that reads and writes OpenEXR images.
    * Half, a C++ class for manipulating half values as if they were a
    built-in C++ data type.
    Imath, a math library with support for matrices, 2d- and
    * 3d-transformations, solvers for linear/quadratic/cubic equations,
    and more.

    Applications and documentations are available as separate OpenBSD packages:
    OpenEXR-tools and OpenEXR-doc.

WWW: http://www.openexr.com/

Multi-packages
  OpenEXR-doc-1.6.1 OpenEXR-1.6.1p2 OpenEXR-tools-1.6.1p1
Categories:
  graphics

## Library dependencies

- graphics/ilmbase

## Build dependencies

- devel/gmake

## Run dependencies