message: Report SSAA mode in imgui frame
diff: @@ -630,11 +630,18 @@ void renderer::render_hud()
  ImGui::SameLine();
  ImGui::Text("B: %5.2f", rgba.z);
  - ImGui::Text("FPS: %5.2f", counter.register_frame());
  + ImGui::Text("FPS: %6.2f", counter.register_frame());
  ImGui::SameLine();
  ImGui::Spacing();
  ImGui::SameLine();
  - ImGui::Text("SPP: %6u", std::max(1U, frame_num));
  + if (algo == Pathtracing)
  + {
  + ImGui::Text("SPP: %7u", std::max(1U, frame_num));
  + }
  + else
  + {
  + ImGui::Text("SPP: %dx SSAA", ssaa_samples);
  + }
  ImGui::SameLine();
  ImGui::Spacing();
  ImGui::SameLine();
  @@ -908,7 +915,7 @@ void renderer::on_key_press(key_event const& event)
  {
  ssaa_samples = 1;
  }
  - std::cout << "Use " << ssaa_samples << "x supersampling anti-aliasing\n";
  +
  if (algo != Pathtracing)
  {
  counter.reset();
  