Graphics.Rendering.OpenGL.Raw.ATI.SeparateStencil
gl_STENCIL_BACK_FAIL_ATI
gl_STENCIL_BACK_FUNC_ATI
gl_STENCIL_BACK_PASS_DEPTH_FAIL_ATI
gl_STENCIL_BACK_PASS_DEPTH_PASS_ATI
glStencilFuncSeparateATI
glStencilOpSeparateATI