extern PFNGLGETACTIVEUNIFORMBLOCKIVPROC glGetActiveUniformBlockiv;
extern PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glGetActiveUniformBlockName;
extern PFNGLUNIFORMBLOCKBINDINGPROC glUniformBlockBinding;
+extern PFNGLBINDBUFFERBASEPROC glBindBufferBase;
+extern PFNGLBINDBUFFERRANGEPROC glBindBufferRange;
void init_arb_uniform_buffer_object();