OpenImageIO is a library for reading and writing images, and a bunch
of related classes, utilities, and applications.  There is a
particular emphasis on formats and functionality used in professional,
large-scale animation and visual effects work for film.

OpenImageIO is used extensively in animation and VFX studios all
over the world, and is also incorporated into several commercial
products.

Installations of libheif and openvdb will be detected and used
at build time. These will add approximately 750M and 250M respectively
to the installed size.
