public void attachShader(WebGLProgram program, WebGLShader shader)
        {
#if _DEBUG
            Log.Info(string.Format("attachShader {0} {1}", program.Value, shader.Value));
#endif

#if GLEW_STATIC
            Gl.glAttachShader(program.Value, shader.Value);
#else
            Gl.__glewAttachShader(program.Value, shader.Value);
#endif
            this.ErrorTest();
        }