POV-Ray can calculate coloured light. DIALux will export light colour information of a lightsource in version 3.2. Up to that time, you can create coloured light either by using a transparent, coloured filter glass in front of a luminaire or you can edit the RGB value of a luminaire in the POV file.
To add a “filter glass” in DIALux you have to place a small cube in front of the lightoutput of a luminaire. In the “Raytrace settings” of the geometry you have to define the transparency and the colour of the “filter”. It is necessary to remove these filters before calculating with DIALux. DIALux does not yet calculate transparency.
To change the RGB value in the POV file you have to open the file and to find (menu search -> find) ldt_data.
The underscore is important!
color<1,1,1> means the RGB values for the light source are all 100%, means white light. If you change any of these parameters, (e.g. <1,0,1>) the resulting color will be according to the RGB values. This has to be done for each luminaire. It could be helpful to use the replace function (menu search -> replace…)
