gistfile1.cpp

template <typename Function>
void for_each_eye(Function f){
  for (Eye eye = LEFT; eye <= RIGHT; eye = static_cast<Eye>(eye + 1)) {
    f(eye);
  }
}


...



for_each_eye([&](Eye eye){
  eyeArgs[eye].lookupTexture =
    helper.createLookupTexture(glm::uvec2(512, 512), eye);
});