POV-Ray is freeware, available at www.povray.org. DIAL changed POV-Ray to adapt it to the needs of calculation with “real” luminaires. The POV files created by DIALux can only be modified by the POV-Ray version installed by DIALux. If the user tries to open these files with the regular POV-Ray, an error message will occur. To start the DIAL POV-Ray version, open the PVENGINE.EXE file in your DIALux directory e.g. C:\Program Files\DIALux\ and by a double click.
