DIALux automatically copies POV-Ray onto the PC. The software will be installed when the user for the first time starts to calculate a photorealistic image. The setup installs the standard version of POV-Ray 3.6. This software is freeware and available at www.povray.org. Additionally DIALux installs an adapted version of the povengine.exe into the DIALux directory. The major difference between the DIALux version and the original version of POV-Ray is that the DIALux version can handle real photometry of luminaires. The measured light distribution of a luminaire is used to define the distribution of light. The original version can only handle ideal light sources like spot and ambient light. Whenever the DIALux user wants to edit the POV-Ray files, it is important to use the pvengine.exe in the DIALux directory e.g. “C:\Program Files\DIALux\pvengine.exe”. Otherwise the *.pov file can not be interpreted. You can continue to work with POV-Ray to edit the scene generated with DIALux. All functions of POV-Ray are available. For further editing you must use the program “pvengine.exe” that is stored in the directory “C:\Programs Files\DIALux\”. You cannot use the original POV-Ray software.
