WGL_NV_vertex_array_range
http://oss.sgi.com/projects/ogl-sample/registry/NV/vertex_array_range.txt
void * wglAllocateMemoryNV (GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority)
void wglFreeMemoryNV (void *pointer)