Heilan is a cross-platform OpenGL X3D browser written in C++ and designed for audio work.

Specifically, it forms the environment within which I am developing an audiovisual instrument for my PhD.

Heilan aims to conform to the X3D Interchange profile, with additional support for certain nodes such as Sound and NurbsPatchSurface.

It may be extended with libraries which can provide extra nodes, navigation types, and sound file loaders.

Heilan X3D Browser comes with a library containing my own experimental audiovisual nodes, and a couple of extra navigation types.

The browser itself is a command line program designed to be used offline (theres no browser plugin or ftp/http support), though there is a GUI frontend available as well (included in the binary package). Both are open source, licensed under the GPL.

Here are some key features of "Heilan X3D Browser":

· Low latency audio courtesy of PortAudio (ASIO, DirectX, MME on Windows; Jack, ALSA, OSS on Linux; CoreAudio on OSX).
· A 1st order B-format Ambisonic audio engine, allowing for full 3d sound, capable of accommodating virtually any speaker configuration (at the moment this is limited to preset configurations, but that will change in the future).
· Open Sound Control support for all nodes, allowing a nodes attributes to be manipulated in realtime, potentially by multiple users.
· A multi-threaded audio engine, able to split off different nodes audio processing into separate threads (and potentially, separate cpus/cores). This can be configured by the scene author.