libggibuf : An extension to LibGGI handling auxiliary buffers
LibGGIBuf is an extension to LibGGI which adds functionality pertaining to ancilary buffers, e.g. Alpha and Z buffers. LibGGI is a graphics library developed by the GGI Project.
In addition to providing some internal support infrastructurefor other extensions which use ancilary buffers, LibBuf can overload a normal LibGGI visual such that normal LibGGI drawing operations can do things like perform Alpha blends and Z clipping.
LibGGIBuf supports acceleration of graphics primitives where possible, but also provides a fallback mechanism which provides emulation on all supported LibGGI visuals.
The following outlines the environment variables, intended for the user, which affect the behaviour of LibGGIBuf:
The debugging level for LibGGIBuf:
You may also bitwise-or any of the following together:
The debugging output can be quite verbose and in most cases you should redirect stderr so that it does not interfere with your program's output.