message: Set heatmap scale from outside
diff: @@ -33,6 +33,7 @@ struct kernel
  Params params;
  + float heat_map_scale = 1.0f;
  bool perf_debug = false;
  template <typename Intersector, typename R, typename Generator>
  @@ -224,7 +225,6 @@ struct kernel
  if (perf_debug)
  {
  uint64_t clock_end = CLOCK();
  - float heat_map_scale = 1.0f;
  float t = (clock_end - clock_begin) * heat_map_scale;
  result.color = over(vector<4, S>(vector<3, S>(temperature_to_rgb(t)), S(0.5)), result.color);
  }
  