+ blur_shader.attach_shader(get_fullscreen_vertex_shader());
+ blur_shader.attach_shader_owned(new Shader(FRAGMENT_SHADER, blur_fs));
+ blur_shader.link();
+
+ combine_shader.attach_shader(get_fullscreen_vertex_shader());
+ combine_shader.attach_shader_owned(new Shader(FRAGMENT_SHADER, combine_fs));
+ combine_shader.link();
+