glGenRenderbuffers — generate renderbuffer object names
void glGenRenderbuffers( | GLsizei n, | 
GLuint *renderbuffers); | 
nSpecifies the number of renderbuffer object names to generate.
renderbuffersSpecifies an array in which the generated renderbuffer object names are stored.
            glGenRenderbuffers returns n renderbuffer object names in renderbuffers.
            There is no guarantee that the names form a contiguous set of integers; however, it is guaranteed that none of the returned names
            was in use immediately before the call to glGenRenderbuffers.
        
            Renderbuffer object names returned by a call to glGenRenderbuffers are not returned by subsequent calls, unless
            they are first deleted with glDeleteRenderbuffers.
        
            The names returned in renderbuffers are marked as used, for the purposes of glGenRenderbuffers only,
            but they acquire state and type only when they are first bound.
        
Copyright © 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.