With the evo 4, the calculation tool was removed from its mode and integrated into the header. This makes it possible to start the calculation at any time, regardless of the current view and recently performed steps. By default, the buttons are disabled. They are activated as soon as DIALux recognizes that a calculation is possible, that is, either because:

  • in the light scene tool the reference sky type is not "no daylight" and in addition a window exists.
  • a luminaire is available in the project.


While calculating the button changes from "Start calculation" to "Cancel calculation".



With the second button you can discard the results.



If the results were discarded because of further action, there is the constellation that both buttons are active.