First weâll need to hem one edge of the fabric width. This will form part of the fold that we tuck our pillow into. Take your pillowcase back piece and press over a 3/8â fold on one side of the width of the fabric. Now fold it over the same again and press flat (right photo below).
OpenAL (Open Audio Library) is a cross-platform audio application programming interface (API). It is designed for efficient rendering of multichannel three-dimensional positional audio. Its API style and conventions deliberately resemble those of OpenGL.
Unlike the OpenGL specification, the OpenAL specification includes two subsections of the API: the core consisting of the actual OpenAL function calls, and the ALC (Audio Library Context) API which is used to manage rendering contexts, resource usage and locking in a cross platform manner.